Re: [neonixie-l] Large weird round panaplex

[SWISSNIXIE - Jonathan F.]

I also have one of these displays and tried to make it "work", meaning 
display just random elements but it's one of these projects that is just 
lying around. But it looks very cool :)
Yes, they do contain Kr85, I put mine on a gamma spectrometer a few years 
ago. 

On Wednesday 17 April 2024 at 03:02:41 UTC+2 Audrey wrote:

> That's unfortunate to hear. So much engineering history is lost. A friend 
> of mine attempted to contact the grandchild of Burroughs corporation a few 
> years ago and was told that all old records had been destroyed.
>
> On Tue, Apr 16, 2024 at 6:41 PM Neil QQ  wrote:
>
>> I recall Nichia was making custom die for us that included multiple 
>> active elements.   We were trying to chromatically match the panaplex 
>> displays.  We mounted those die directly to a pcb.  They were then overlaid 
>> with plastic light shaping and diffusing elements.  Back before glass made 
>> its way into piston aircraft cockpits (thank you Gary Burrell) it was very 
>> important that all of our panel units looked and behaved the same.  We 
>> spent insane amounts of money to make sure the display colors (OK, just one 
>> color - neon) and mechanical control performance matched.  When I left 
>> King, the LED prototype was falling just short of meeting the high 
>> brightness requirement.  The polarizer and antiglare coatings were pretty 
>> lossy.  I don't honestly know if these ever made it into mass production.  
>> The original unit targets were the KX155 & KX165. 
>>
>> For those that knew King Radio, our historical, engineering centric 
>> organization was destroyed in same manner as Boeing.  ( 
>> https://www.amazon.com/Flying-Blind-Tragedy-Fall-Boeing/dp/0385546491 
>> ).  GE disciple, Larry Bossidy took over in 1991.  Bossidy is to 
>> AlliedSignal as Stonecipher is to Boeing.  I had a front row seat as Gary 
>> Burrell was forced out as King's Engineering V.P.   He, along with Min Kao 
>> then formed Garmin.  Both of these men were and are amazing, high integrity 
>> individuals.  Garmin now "owns" the majority of piston aircraft 
>> instrumentation.
>>
>>
>>   
>>
>>   
>>
>> On Tuesday, April 16, 2024 at 3:55:15 PM UTC-5 Audrey wrote:
>>
>>> Wow. Do you have any more details about these LEDs?
>>>
>>> On Tue, Apr 16, 2024 at 12:19 PM Neil QQ  wrote:
>>>
 I do recall Krypton-85 as being one component of the gas brew.  The 
 KR85 half-life helps explain why we sold so many replacement displays for 
 seven to ten year old units.  As I recall, the brew included seven gases 
 with two of those being radioactive.  The required light dynamic-range of 
 aviation displays is demanding.  They must be readable in blinding 
 sunlight 
 and barely lit at night to avoid night blindness.  The gas mixture played 
 an important role in meeting those requirements.  The details of the 
 displays themselves and the techniques for driving them were figured out 
 long before my time.

 The beginning of the end for the King panaplexes began in the late 
 90's.  We were down to a single supplier for the proprietary gas mixture.  
 If I recall correctly, that supplier was Dale Electronics (contemporarily, 
 Vishay) in Columbus, NE.  At some point they informed us they could not 
 find a carrier to deliver the gas from Columbus, NE to Olathe, KS due to 
 new, onerous regulations for hazardous material transport.  So we, King 
 Radio, sent in-house trucks to pick up the gas cylinders.

 One of my last great (in my head anyway) acts at King was having my 
 crew develop a retrofittable LED replacement module.  It used bespoke, 
 neon 
 hued, Nichia LED's.

 On Tuesday, April 16, 2024 at 3:29:36 AM UTC-5 Audrey wrote:

> Indeed my point in mentioning it.
>
> On Mon, Apr 15, 2024, 6:31 PM n1ist  wrote:
>
>> The Kr85 mark indicates that they have (or rather now have just a 
>> little, since the half life is 10.7 years) Krypton-85 mixed in the gas 
>> to 
>> help with the ionization
>>
>> On Monday, April 15, 2024 at 6:09:42 PM UTC-4 Audrey wrote:
>>
>>> That's fascinating Neil, I have a few boring Bendix panaplexes and 
>>> was curious about their manufacture. I believe they're marked Kr85.
>>>
>>> On Mon, Apr 15, 2024, 5:47 PM Neil QQ  wrote:
>>>
 Until, at least, sometime in the early 2000's 90's King Radio (aka 
 Bendix/King) was still selling NAV and COM radios using their own 
 numeric 
 panaplex type displays e.g. KX155, KX165.  These displays were custom 
 designed and fabricated in-house in Olathe, KS.  To the best of my 
 knowledge they were all neon orange monochrome.  The gas used was a 
 proprietary witches brew that included several radioactive trace 
 elements.  
 I recall seeing a prototype ILS indicator similar to the one 
 referenced in 
 this 

[neonixie-l] Beckmann SP450-024 Data

[SWISSNIXIE - Jonathan F.]

Hi,

A few years ago I've bought a Beckmann SP450-024 Panaplex-Display with a 
lot of other tubes. 

I would like to get this running now, but missing the datasheet of it.
I've tested it with the parameters of an SP-450-035 display and it lights 
up with 170V. But i have no information about the required timing/current.

Does anyone of you know something about this display?
Its a 2x18 Character 14 segement display

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Re: [neonixie-l] Nixie Clock - Direct Drive HV5530

[SWISSNIXIE - Jonathan F.]

Hi

If I understand correctly, you need to alter the code in the section 
"menuItemHandler"
https://github.com/sgtJohnny/sunix/blob/master/sunix.ino 

The function calls on line 639 and 654 do set the values to the three tube 
groups, if you do not have the seconds column, you would have to change 
this this:
*formatOutput(menu_item, 255, currentVal, 0, 0);  *and set the currentVal 
to the second tube group resulting in *formatOutput(menu_item, currentVal, 
255,  0, 0); * 

On Tuesday, 4 October 2022 at 01:15:13 UTC+2 flata...@gmail.com wrote:

> Hi Jonathan,
>
> I have built this clock and works well. I have however decided to go for a 
> 4 digits version instead of 6. I can manually set the time, no issues. But 
> when I go through the parameters menu, I can see the menu number but not 
> the parameter numbers of each menu as the code is displaying those using 
> the second digits which I don’t have.
>
> I can code in Assembler but I am not very good with Arduino yet. Is there 
> an easy way to modify the code for 4 digits only?
>
> Any help would be much appreciated.
>
> https://www.swissnixie.com/sunixs/
>
> Thank you,
>
> Max
>
>
>
> On 13 Aug 2022, at 22:16, SWISSNIXIE - Jonathan F.  
> wrote:
>
> Yes, the code is open source :)
>
> You can download it at the bottom of the page
> https://www.swissnixie.com/sunixs/
>
>
> I programmed it in Arduino with the atmeag328, but it should be a good 
> start to look at the function "setOutputs" in the code, it contains the 
> actual shifting process.
> Also it's easier to layout the outputs of the IC and cathode-pins as 
> "numbered" with the output number unless you are very experienced with the 
> code.  This allows bitwise operations for creating the variable containing 
> the value.
> For example, if your Cathode 0 is connected to output 1, and cathode 9 to 
> pin 10, you can use a function to shit as a single bit according to the 
> current digit number. If your digit is 8, you can do " 0x01<<8". If your 
> cathodes are randomly connected (to make an easy layout) you will need to 
> implement more code. 
>
> On Saturday, 13 August 2022 at 22:35:13 UTC+2 flata...@gmail.com wrote:
>
>> Jonathan,
>>
>> I just found this, it's excellent. 
>>
>> http://swissnixie.com/projects/SUNIX-S/SN_SUNIX_S_R1.2_WTB_SCHEMATIC.png
>>
>> From this post:
>> https://groups.google.com/g/neonixie-l/c/S1oX30hLrmw
>>
>> If the code is open source, I'll just use that otherwise I'll adapt mine 
>> to use hv5530 and hef4104. 
>>
>> Awesome! 
>>
>>
>>  Original message 
>> From: "SWISSNIXIE - Jonathan F."  
>> Date: 13/08/2022 20:51 (GMT+00:00) 
>> To: neonixie-l  
>> Subject: Re: [neonixie-l] Re: Nixie Clock - Direct Drive HV5530 
>>
>> The time to shift out the bits is not critical, the clock rate is as fast 
>> as you implement it, there is only a minimum clock time, but no maximum one.
>> Brightness should be the same as putting the tube pin directly to ground, 
>> the internal resistance of the mosfet in the HV5530 is in the Ohms range, 
>> while your anode resistor will probably will be a few kiloohms, so no 
>> visible issue.
>>
>> About voltage:
>> The HV5530 is specified for 10.8 to 13.2V, but alot of people seem to use 
>> it with 5V logic and it works. If you want do operate ith with 12V logic, 
>> you need a 12V source and a level shifter. HEF4104 
>> <https://www.digikey.com/en/products/detail/nexperia-usa-inc/HEF4104BT-653/1156435>
>>  
>> could work
>>
>>
>> On Saturday, 13 August 2022 at 19:04:21 UTC+2 flata...@gmail.com wrote:
>>
>>> Thanks.
>>>
>>> In terms of nixie brightness, is there any advantage in using serial to 
>>> parallel converter+shift register vs multiplexing using high voltage 
>>> transistors on anodes and cathodes of the nixies? Other than saving 
>>> component and uC pins, of course. 
>>>
>>>  Original message 
>>> From: Bill Stanley  
>>> Date: 13/08/2022 17:32 (GMT+00:00) 
>>> To: neonixie-l  
>>> Subject: [neonixie-l] Re: Nixie Clock - Direct Drive HV5530 
>>>
>>> I use that part for my NIXIE, Panaplex and LED displays and I also write 
>>> in assembly (8051, not PIC)
>>> For my code, I send the serial data for NEXT time to display in the time 
>>> after a 1 second update. On the 1 second "hack"
>>> I update the display by doing the serial to parallel pulse.
>>>
>>> Here is the code I use:
>>&

Re: [neonixie-l] Re: Nixie Clock - Direct Drive HV5530

[SWISSNIXIE - Jonathan F.]

Yes, the code is open source :)

You can download it at the bottom of the page
https://www.swissnixie.com/sunixs/


I programmed it in Arduino with the atmeag328, but it should be a good 
start to look at the function "setOutputs" in the code, it contains the 
actual shifting process.
Also it's easier to layout the outputs of the IC and cathode-pins as 
"numbered" with the output number unless you are very experienced with the 
code.  This allows bitwise operations for creating the variable containing 
the value.
For example, if your Cathode 0 is connected to output 1, and cathode 9 to 
pin 10, you can use a function to shit as a single bit according to the 
current digit number. If your digit is 8, you can do " 0x01<<8". If your 
cathodes are randomly connected (to make an easy layout) you will need to 
implement more code. 

On Saturday, 13 August 2022 at 22:35:13 UTC+2 flata...@gmail.com wrote:

> Jonathan,
>
> I just found this, it's excellent. 
>
> http://swissnixie.com/projects/SUNIX-S/SN_SUNIX_S_R1.2_WTB_SCHEMATIC.png
>
> From this post:
> https://groups.google.com/g/neonixie-l/c/S1oX30hLrmw
>
> If the code is open source, I'll just use that otherwise I'll adapt mine 
> to use hv5530 and hef4104. 
>
> Awesome! 
>
>
>  Original message 
> From: "SWISSNIXIE - Jonathan F."  
> Date: 13/08/2022 20:51 (GMT+00:00) 
> To: neonixie-l  
> Subject: Re: [neonixie-l] Re: Nixie Clock - Direct Drive HV5530 
>
> The time to shift out the bits is not critical, the clock rate is as fast 
> as you implement it, there is only a minimum clock time, but no maximum one.
> Brightness should be the same as putting the tube pin directly to ground, 
> the internal resistance of the mosfet in the HV5530 is in the Ohms range, 
> while your anode resistor will probably will be a few kiloohms, so no 
> visible issue.
>
> About voltage:
> The HV5530 is specified for 10.8 to 13.2V, but alot of people seem to use 
> it with 5V logic and it works. If you want do operate ith with 12V logic, 
> you need a 12V source and a level shifter. HEF4104 
> <https://www.digikey.com/en/products/detail/nexperia-usa-inc/HEF4104BT-653/1156435>
>  
> could work
>
>
> On Saturday, 13 August 2022 at 19:04:21 UTC+2 flata...@gmail.com wrote:
>
>> Thanks.
>>
>> In terms of nixie brightness, is there any advantage in using serial to 
>> parallel converter+shift register vs multiplexing using high voltage 
>> transistors on anodes and cathodes of the nixies? Other than saving 
>> component and uC pins, of course. 
>>
>>  Original message 
>> From: Bill Stanley  
>> Date: 13/08/2022 17:32 (GMT+00:00) 
>> To: neonixie-l  
>> Subject: [neonixie-l] Re: Nixie Clock - Direct Drive HV5530 
>>
>> I use that part for my NIXIE, Panaplex and LED displays and I also write 
>> in assembly (8051, not PIC)
>> For my code, I send the serial data for NEXT time to display in the time 
>> after a 1 second update. On the 1 second "hack"
>> I update the display by doing the serial to parallel pulse.
>>
>> Here is the code I use:
>>
>> ;
>> ;**
>> ;*Serial clock the data in the raw buffer to the H/W drivers. *
>> ;*Note: this routine does not strobe the data to the display.*
>> ;**
>> ;*On Entry: None.*
>> ;*On Exit:  Display H/W drivers updated from ram.*
>> ;**
>> ;
>>
>> WRT_NIXIE_HW:MOVR0,#DISP_RAW_TH;point at start of raw 
>> display ram
>>  MOVR1,#12d;12 bytes of 
>> data to send
>> RAW_BYTE_LP: MOVR2,#5;5 bits per byte
>> MOVXA,@R0;get a 5 bit 
>> value
>> INCR0;bump the pointer
>>
>> RAW_BIT_LP:RRCA;bit 0 into carry
>>MOVDISP_DAT,C;put the bit into 
>> the I/O port
>>CALLHV_BIT_DELAY;delay
>>SETBDISP_CLK;clock high
>>CALLHV_BIT_DELAY;delay
>>CLRDISP_CLK;clock low
>>DJNZR2,RAW_BIT_LP;loop 5 bits
>>

Re: [neonixie-l] Re: Nixie Clock - Direct Drive HV5530

[SWISSNIXIE - Jonathan F.]

.
>>
>> Of course, I'd need to do it do it within a certain time frame (nS, I 
>> suppose)
>>
>> Then I guess I would need a level shifter as while the input voltage is 
>> 12V, the PIC is at 3.3V (LF series). Argh. 
>>
>> I'm starting to think whether that is really a better approach than using 
>> an 80pin or 100pin PIC with HV transistors to drive the cathodes of the 
>> Nixies (pic18f46k22 would do for instance). It would increase component 
>> count and cost of PIC etc, but it's not a commercial project, I'm only 
>> making 3 clocks in total.
>>
>> Indeed, I'm building a clock with Dalibor's RZ568M (beautiful!).
>>
>> Il giorno sabato 13 agosto 2022 alle 15:46:58 UTC+1 gregebert ha scritto:
>>
>>> Be sure to use a level translator to drive the 5530-type devices at the 
>>> proper signal voltages (12 VDC). Some people have driven them at 5V, which 
>>> is out-of-spec and not guaranteed to work.  I use these drivers in some of 
>>> my clocks and they work very well. 
>>>
>>> Pardon my rant below, but I've been designing IC's for a living since 
>>> the 1980's and too often I see others having problems with serial devices  :
>>>
>>>   One thing that annoys me about the HV5530 (and similar) devices is 
>>> that the datasheet specs are incomplete for the serial data signals. The 
>>> data-in hold time (tH) is 10nsec, but there is no *minimum* propagation 
>>> time in the spec (tDLH, tDHL). The only have a maximum (100ns). What this 
>>> means is that per the datasheet, you cannot simply cascade multiple 
>>> devices. It might work if you do, but if you want to guarantee that it will 
>>> always work, place a rising-edge flip-flop between cascaded devices). In 
>>> order to have reliable shifting, the minimum propagation-delay of the 
>>> driving device *must be greater* than the hold-time of the next device. 
>>> If there is no minimum prop-delay spec, assume it's zero (a very safe and 
>>> reasonable assumption). 
>>>
>>> My current clock project (6-tube RZ 568m) has multiple PC boards with 
>>> ribbon cables interconnecting them. Not just for the three HV5530's that 
>>> drive the tubes, but also many other devices in the same serial chain for 
>>> reading switches and controlling lamps. After many weeks of testing with 
>>> billions of bits, there are zero bit errors.because I made sure setup 
>>> and hold times are met.
>>>
>>>
>>> On Saturday, August 13, 2022 at 6:32:31 AM UTC-7 SWISSNIXIE - Jonathan 
>>> F. wrote:
>>>
>>>> Hi Max,
>>>> The HV5530 and other HV-Series IC's are "Serial to Paralell" converters 
>>>> which allow to be control 32-pins (or even more with multiple ic's) from 
>>>> single clock and data lines. They are basically normal serial to parallel 
>>>> converters with high voltage transistors attached. 
>>>>
>>>> To operate these you will need a clock source (for easy way a gpio that 
>>>> goes high/low) and a data source, which means either a pin that is high or 
>>>> low at the time of clock. After you've sent the required amount of data 
>>>> (number of outputs on the IC) the first data will transfer to "DATA OUT" 
>>>> pin and into the next IC (if there is one).
>>>>
>>>> For a 6 digit clock you need 2 pcs of HV553
>>>>
>>>> I cannot provice ASM code for PIC, but here is a low level code of 
>>>> ATMega:
>>>>
>>>> *#define thePort PORTD *
>>>> *#define DATA PD5*
>>>>
>>>> *#define CLK PD7 *
>>>>
>>>>
>>>> *PORTC |= _BV(PC1);  //Set OE/LE Signal LOW*
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> * for (int i = 0; i < 32; i++) {thePort &= ~_BV(DATA);  //Data LOW  
>>>>   if ( bitRead(val_one, i) == 1) {  thePort |= _BV(DATA);  //Data HIGH 
>>>>  
>>>>   }thePort |= _BV(CLK);  //CLK HIGHthePort &= ~_BV(CLK); //CLK LOW 
>>>>  
>>>> }*
>>>> *PORTC &= ~_BV(PC1);  //Set OE/LE Signal HIGH* 
>>>>
>>>> The general operation of the 5530 is as following.
>>>>
>>>> 1.) Drive Data pin and Clock pin LOW
>>>> 2.) Before starting to send data, drive LE pin LOW
>>>> 3.) For each bit you need to do a clock signal and data pin, for this:
>

[neonixie-l] Re: Nixie Clock - Direct Drive HV5530

[SWISSNIXIE - Jonathan F.]

Hi Max,
The HV5530 and other HV-Series IC's are "Serial to Paralell" converters 
which allow to be control 32-pins (or even more with multiple ic's) from 
single clock and data lines. They are basically normal serial to parallel 
converters with high voltage transistors attached. 

To operate these you will need a clock source (for easy way a gpio that 
goes high/low) and a data source, which means either a pin that is high or 
low at the time of clock. After you've sent the required amount of data 
(number of outputs on the IC) the first data will transfer to "DATA OUT" 
pin and into the next IC (if there is one).

For a 6 digit clock you need 2 pcs of HV553

I cannot provice ASM code for PIC, but here is a low level code of ATMega:

*#define thePort PORTD *
*#define DATA PD5*

*#define CLK PD7 *


*PORTC |= _BV(PC1);  //Set OE/LE Signal LOW*








* for (int i = 0; i < 32; i++) {thePort &= ~_BV(DATA);  //Data LOW
if ( bitRead(val_one, i) == 1) {  thePort |= _BV(DATA);  //Data HIGH
}thePort |= _BV(CLK);  //CLK HIGHthePort &= ~_BV(CLK); //CLK LOW  }*
*PORTC &= ~_BV(PC1);  //Set OE/LE Signal HIGH* 

The general operation of the 5530 is as following.

1.) Drive Data pin and Clock pin LOW
2.) Before starting to send data, drive LE pin LOW
3.) For each bit you need to do a clock signal and data pin, for this:
3.1) Drive CLOCK High
3.2) Drive DATA high or low, depending if you want to turn the digit on or 
off
3.3) Drive CLOCK Low
3.4) Drive DATA Low
4.) This needs to be done for all Inputs of an ic, if you have two ic's 
chained you need to to it two times.
5.) After all Data has been sent, drive LE pin HIGH, Outputs will now be 
set to the data you've just send







On Saturday, 13 August 2022 at 12:13:24 UTC+2 flata...@gmail.com wrote:

> Hello,
>
> I'm starting to design my first 6 digit nixie clock and I'd like to use 
> direct drive of the tubes (my power supply can take 6 nixies without 
> multiplexing).
>
> So far I have built my Nixie watch, coding in ASM, worked on extreme power 
> saving etc.
>
> I could multiplex the nixies as I did in this project 
> https://fb.watch/eTb69SnxEP/ , but since I have a good power supply I 
> wanted to build a clock with direct drive of the tubes.
>
> I prefer to code in ASM (don't ask why :)  ), I could use a 100pin PIC18 
> to drive each digit individually through MMBTA92 & A42 transistors. 
> However, if I want to use a PIC with a lower pin count (say 40pins), I may 
> use a driver such as HV5530.
>
> Would I still get same brightness as a genuine direct drive as when using 
> A92 transistors? I suppose the switching that happens using CLK/SDA on 
> the HV5530 is not too different than a good multiplexing. I may be wrong.
>
> And if I were do code ASM to use HV5530, does anyone have sample ASM code? 
> I managed to write myself the code to read/write time from an RTC using 
> CLK/SDA so I suppose it's very similar but I cannot figure it out from the 
> datasheet of HV5530.
>
> Any help is much appreciated.
>
> Max
>

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Re: [neonixie-l] Ceramic output capacitors on MAX1771 converter?

[SWISSNIXIE - Jonathan F.]

I've used a MAX1771 with ceramic capacitors a while ago for a 
pandicon-circuit and a smaller nixie project. Both consume less than 
15mA@170V. Not sure how the circuit would behave at more current. 

On Thursday, 19 May 2022 at 20:03:18 UTC+2 Dekatron42 wrote:

> A few other things that I experienced at my previous employer was that 
> larger (sizewise) MLCC capacitors easily developed cracks, came loose from 
> the circuit board and also needed reforming after storage.
>
> /Martin
>
> On Thursday, 19 May 2022 at 05:01:25 UTC+2 mo...@neonixie.com wrote:
>
>> Roger,
>>
>> Yes. Looks like the common dielectrics (X7T, X7R) available in the 250v 
>> 1-3uf range suffer from a 30-80% reduction in capacitance at 180v. I hadn't 
>> realized it was that high.
>> Thank you, I'll look at the polymer caps. It's my last remaining 
>> electrolytic on my board and if possible I would like to use a solid one 
>> instead.
>>
>> Regards,
>> -Moses
>>
>> On Wednesday, May 18, 2022 at 7:54:10 PM UTC-7 Roger Brinkman wrote:
>>
>>> Hi Moses,
>>>
>>> What David writes below about the capacitance reduction of ceramic 
>>> capacitors is correct. 
>>> I have experienced success using polymer aluminium electrolytics (solid 
>>> electrolyte) to replace conventional low-ESR electrolytic capacitors that 
>>> regularly fail in similar applications. 
>>> You might like to experiment with these. 
>>>
>>> Best regards 
>>> Roger Brinkman. 
>>>
>>> On 19 May 2022, at 12:42 pm, David Forbes  wrote:
>>>
>>> 
>>>
>>> I haven't tried it, but I can make some observations. The MAX1771 isn't 
>>> connected directly to the output circuit, so it's not likely to suffer from 
>>> a problem. The current flows through the inductor which will accommodate a 
>>> momentary short circuit caused by the capacitor. 
>>> In short, it shouldn't be a problem.
>>> Bear in mind that the effective capacitance of a modern ceramic 
>>> capacitor is much lower with a DC bias near its rated voltage, so you would 
>>> need to use either capacitors rated for 5x the output voltage, or about 5x 
>>> the desired capacitance.
>>> Some capacitor data sheets publish this reduction in capacitance as a 
>>> function of bias voltage, most don't. Look for it.
>>>
>>>
>>> On Wed, May 18, 2022, 6:49 PM Moses  wrote:
>>>
 Before I let the magic smoke out of half a dozen MAX1771 ICs.. has 
 anyone ever tried using ceramic output capacitors? It wants a low ESR 
 capacitor, so ceramics may work well.

 The datasheet doesn't mention ceramics on the output side.. but then 
 again it was written a few decades ago when the required 
 voltage/capacitance probably was not readily available.

 Regards,
 -Moses

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>>> .
>>>
>>>

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Re: [neonixie-l] eBay Paranoia

[SWISSNIXIE - Jonathan F.]

I've never had problems with payments on ebay so far, but i have to admit 
that i think ebay is getting worse and worse every day.
My biggest issue is that ebay is actively hiding items that can't be 
delivered to your address. I have multiple addresses for shipping, but only 
the primary one is considered valid at searches. Its a pain switching 
between 3 addresses to see "all" items for a specific search.  Not to 
mention the ridiculous forced translations they do since a while ago...

On Saturday, 2 April 2022 at 00:39:29 UTC+2 Jim KO5V wrote:

> Thanks to everyone who responded. I am very frustrated with eBay, since I 
> get an email every couple of weeks telling me that "action is required to 
> put my account back in good standing". It sounds like I am a deadbeat, 
> rather than a paying customer.
>
> I had considered opening a 'for internet use only' bank account, but 
> giving out my social security number is probably always going to be the 
> real problem. It might already have been compromised, but I guess I just 
> don't want to volunteer any more information than is necessary.
>
> As I get older, I am wanting to simplify. eBay is convenient, but there 
> are ham radio sites, etc where I can sell my treasures, so except for the 
> occasional purchase, I'm  probably done with eBay - after almost 25 years.
>
>  Best regards, Jim
>
>
>
> On Friday, April 1, 2022 at 7:24:15 AM UTC-6 Paul Andrews wrote:
>
>> @threeneurons, that is very sensible. As someone who had their identity 
>> stolen I am very wary about any of this. BTW 'stolen identity' does not 
>> mean they got my credit card info. It means they got my identity and went 
>> around opening their own credit cards in my name, using my address and my 
>> social security number. This year we found out that my son also got his 
>> identity stolen - someone filed their taxes using his information (I still 
>> don't see the benefit of that).
>>
>> Anyway, I stopped selling online after paypal sent me a 1099. The extra 
>> hassle filing taxes isn't worth it for the small amount of money I get from 
>> selling.
>>
>> On Thursday, March 31, 2022 at 6:29:12 PM UTC-4 threeneurons wrote:
>>
>>> eBay has been doing this now, for about a year and a half. I've had no 
>>> problems, so far. Initially, I didn't understand why they did this, only a 
>>> few years after selling off Paypal. So It seemed kinda stupid. But I think 
>>> it has to do with some legal changes both in the US and in Europe. In the 
>>> US, all online transactions need to include the sales tax of the buyer's 
>>> state. In Europe, they want the VAT collected at time of purchase. When 
>>> eBay took over handling the payments, they take care of both of those. 
>>> Sales tax and VAT get routed directly from the buyer to eBay, and (I 
>>> assume) to the respective government agency. I only get the item's price, 
>>> shipping (that I established), less eBay's fees (~10%). They deposit that 
>>> amount to my bank account, either daily, or weekly, dependent on the 
>>> sellers preference.
>>>
>>> I Long ago set up a different bank account, at a whole different bank, 
>>> just for online stuff. That way if either eBay or Paypal get hacked, only 
>>> this "online use" account is exposed. Your SSN is needed, if and when they 
>>> issue 1099s.
>>>
>>> Of course, all banks now, have an on line presents, so with my luck, my 
>>> main bank gets breached, while the small sum, at the "online use" bank 
>>> stays unaffected.
>>>
>>> On Thursday, March 31, 2022 at 1:45:37 PM UTC-7 Pramanicin wrote:
>>>
 Etsy sellers have nixies etc on themI quite liked that platform in 
 the beginning, but slowly their commissions grew higher and I gave up 
 using 
 it as a seller.

 On Thu, Mar 31, 2022 at 1:30 PM 'Grahame' via neonixie-l <
 neoni...@googlegroups.com> wrote:

> Hi
>
> So far I've not had a problem with eBay or Paypal but then I think I 
> have been following their rules when both buying and selling.
>
> I tried to open an account to buy through Alibaba house of horrors and 
> they asked for a photograph of my passport, proof of my home address and 
> a 
> photo of the credit card I was going to use. I just deleted the email and 
> all those that followed asking me to pay for the goods in my basket. 
> Eventually they stopped and I've not tried again.
>
> Grahame
> On 31/03/2022 21:01, Jim KO5V wrote:
>
> Good Afternoon,
>
> For the last couple of years, I have avoided giving eBay my bank info 
> and SS #.  I always use PayPal on line, mainly because in my simple mind, 
> keeping my information in one place, rather than spreading it out all 
> over 
> the web lowers the odds of having that info stolen. Several years ago,  a 
> couple of my CC #s were stolen when on-line merchants were hacked, so I 
> am 
> probably a bit over-sensitive.
>
> I guess eBay wants to 

Re: [neonixie-l] NEC LD-816 from Ebay

[SWISSNIXIE - Jonathan F.]

Sad to hear it is damaged  :( 

For identifying the symbols, maybe a laser pointer can help, i tried this 
once with a tube, by moving the laser pointer on the axis of the symbol. A 
green one did a very good job to identify symbols!

Also i bought from this seller a few times, it seems that he's some kind of 
reseller/seller of bulk tube assortments, maybe from house clearances or 
flea markets. Possibly not knowing that much about tubes, judging by the 
replies to messages. 



On Saturday, 23 October 2021 at 16:16:47 UTC+2 Jens Boos wrote:

> The damage to the tube did not happen during shipment. But it is easy to 
> miss if you are not familiar with Nixie tubes. If I had seen this clearly 
> on the photos I would not have placed such a high bid. I certainly don't 
> blame the seller for not spotting this.
>
> Jens
>
> On 2021-10-23 12:34 a.m., jb-electronics wrote:
>
> I will try that, sounds like a good idea. Will take me some time to set it 
> up, though. Jens
>
>
> On 2021-10-22 6:50 p.m., Audrey wrote:
>
> Wow jens that is so sad. Maybe you could try some pics with a razor thin 
> focal plane head-on with the tube and focus on each cathode?
>
> On Fri, Oct 22, 2021, 6:49 PM jb-electronics  
> wrote:
>
>> I won the tube. Unfortunately the base is cracked and it is completely 
>> dead. I am having some trouble identifying the symbols...
>>
>> Jens
>>
>> On 2021-10-22 4:59 p.m., liam bartosiewicz wrote:
>>
>> It might display some kanji characters, but it’s hard to tell from the 
>> photos
>>
>> On Oct 22, 2021, at 10:09 AM, 'Bogdan Paduraru' via neonixie-l 
>>  wrote:
>>
>> Friends
>>
>> Does any one of you got the below tube?
>>
>> https://www.ebay.com/itm/203624118285
>>
>> I am very curious on what it does display
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Re: [neonixie-l] USB connector shield

[SWISSNIXIE - Jonathan F.]

First of all, grounding - or - how to connect the shield, is not really 
specified, and usually you should consider the chip's datasheet / 
application notes on how to do it. 

For example, see the TUSB4020BI  
Datasheet,
 
page 27/28. But surely this is for series production and professional 
product, if used as hobbyist project, i would just connect the shield to 
ground.

A few more notes on USB:

I would move away the usb connector as far as possible from the HV supply. 
I guess U3 is the MCU, so place near there. Also make sure you put TVS 
diodes on the Data lines, to protect them from ESD damage, and differential 
routing maybe should be used here too. If you don't have a pcb tool that 
can do this, try at leas to have the usb datalines in the same distance and 
trackwith and route them as parallel as possible. 
Maybe also try and measure power first, i've had some issues with running a 
nixie circuit off a *Standart USB Computer Port* since those are usually 
limited to 500mA. Newer computers have electronic fuses / controllers, and 
i've had the issue that at the start, the psu spiked to over 500mA, and the 
Computer turned the USB off.  USB3 ports usually have 1000mA

On Monday, 8 February 2021 at 21:58:02 UTC+1 newxito wrote:

> The PC should see the board as a COMx connected over USB, so the software 
> (C#/.NET) just has to send some WMI data (CPU load %, Disk usage %, …) to 
> the serial interface… sounds easy :-)
> The software should be a service, so the data can be sent even when nobody 
> is logged in.
> And I would like to shutdown the high voltage if the pc goes to sleep or 
> turns off.
> Probably I will end up killing my pc mainboard :-)
>
> Kevin A. schrieb am Montag, 8. Februar 2021 um 21:21:00 UTC+1:
>
>> Never underestimate firmware ;)
>>
>>

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[neonixie-l] Re: What's the largest neon bulb commercially available?

[SWISSNIXIE - Jonathan F.]

Not sure if it suits your request, but there was a german bulb, called 
"bienenkorblampe" 
https://de.wikipedia.org/wiki/Glimmlampe#/media/Datei:Bienenkorbglimmlampe.jpg

Very nice but very rare!


gregebert schrieb am Sonntag, 20. Dezember 2020 um 04:40:40 UTC+1:

> I had a larger one up to a few years ago,  until I was careless and let it 
> get broken, that ran on 120 VAC and had a standard edison base like regular 
> light bulbs for household use. The bulb was about 2 inches in diameter. I 
> think it was from the 1950's. No idea what it's intended use was, because 
> it produced very little light.
>
> On Saturday, December 19, 2020 at 6:39:02 PM UTC-8 w...@kitsunegari.net 
> wrote:
>
>>
>> Not counting the novelty bulbs (flickering flame, Flamingo, Heart shape) 
>> is there an E27 type neon bulb available?
>> The largest I can find is an E14 bulb made by Elfin, Italy.
>>
>> https://www.newelfin.com/en/010E14N110/lamps-cable-glands-and-accessories/e14-neon-lamps/e14-neon-lamps/neon-lamp-e14-110-v
>>  
>> Would love a box of these by the way but I think they're only made to 
>> order
>>
>

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Re: [neonixie-l] Ceramic Driver ICs

[SWISSNIXIE - Jonathan F.]

Thanks Paramancin! I forgot about the russian ones! I've send you a pn.

Dmitry Shevchenko schrieb am Samstag, 12. Dezember 2020 um 21:42:33 UTC+1:

> At Russian Federation available 70 pc KM155ID1. Cost: 3$/pc 
> If you need ~2000pc, I may be pack die  at russian assembly service to 
> golden plated wires ceramic carrier. 
> But Minimal order 2000pc.
> https://zpp12.ru/products/tech/tech.php?ID=4
> http://www.z-mars.ru/?category=108
>
> Regards,
> Dmitry
>
> сб, 12 дек. 2020 г. в 22:39, chuckrr :
>
>> yep, I seem to recall those are ceramic
>>  
>>
>>  Original Message 
>> From: "Nicholas Stock" 
>> Sent: 12/12/2020 2:01:32 PM
>> To: neoni...@googlegroups.com
>> Subject: Re: [neonixie-l] Ceramic Driver ICs
>>  
>>
>> Weren't there ceramic versions of the K155N1 version?
>>  
>> Sent from my iPhone
>>
>> On Dec 12, 2020, at 10:37, SWISSNIXIE - Jonathan F.  
>> wrote:
>>  
>>
>> 
>> Hi Folks,
>>  
>> For an unique and special project i'm looking for ceramic parts. I've 
>> already found myself a micro-controller in ceramic and some other ic's as 
>> well.
>>  
>> It would be nice if i could use also a ceramic nixie driver like the 
>> 74141 or 7441.
>>  
>> Does any one here has them and would like to sell 2-3 pcs?
>>  
>> Thanks!
>>
>> --
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[neonixie-l] Ceramic Driver ICs

[SWISSNIXIE - Jonathan F.]

Hi Folks, 

For an unique and special project i'm looking for ceramic parts. I've 
already found myself a micro-controller in ceramic and some other ic's as 
well.

It would be nice if i could use also a ceramic nixie driver like the 74141 
or 7441.

Does any one here has them and would like to sell 2-3 pcs?

Thanks!

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Re: [neonixie-l] Safe handling of tubes containing Krypton 85

[SWISSNIXIE - Jonathan F.]

Mantles contain alpha emitting isotopes, but are a bad example for testing 
tubes for alpha sensitivity. Here you can see a comparison of tubes
https://sites.google.com/site/diygeigercounter/technical/gm-tubes-supported

The last chart shows almost identical counts for the mantle on the SMB-20 
(gamma tube) and the SBT-11A (alpha tube) i think that's the one Paul uses. 



Paul Andrews schrieb am Mittwoch, 2. Dezember 2020 um 18:01:47 UTC+1:

> I have an old gas lamp mantle. Very active, but apparently not alpha - 
> interposing a piece of paper (as has been suggested) has no effect at all.
>
> On Dec 2, 2020, at 11:11 AM, alb.001 alb.001  wrote:
>
>  
>
> I have a few as well in the original packaging.   I find them at flea 
> markets and antique shows. All of the sellers are unaware of their 
> radioactivity.  I paid $2 for each. I have also found some old 
> pharmaceutical products such as corrosive sublimate pills ( contain 
> mercuric salts ) which were used to make disinfectant solutions.  Also 
> dangerous and never packaged in anything resembling child-resistant and 
> very poisonous.   I buy them to protect the public who might buy them as a 
> curiosity and not be aware of the danger they pose.
>
> Pharma Phil
>
> -- Original Message -- 
> From: GastonP  
> Date: December 1, 2020 at 10:00 PM 
>
> An old gas lamp mantle is good enough for the purpose, as its main 
> emission is alpha particles. It must be an old one because those ones use 
> thorium oxide to get its distinctive bright, while new ones don't use 
> thorium. I keep 3 of them, which I got from a local auction site, in a 
> small ziploc bag that saves me from touching the mantles themselves. 
>
>
> On Friday, November 27, 2020 at 8:10:19 AM UTC-3 Sgitheach wrote: 
>
> Would just a chunk of granite (or a granite kitchen worktop if you have 
> one) be good as a cheap starting point?
> On 27/11/2020 10:56, SWISSNIXIE - Jonathan F. wrote: 
>
> I advise against using smoke detectors. To detect heir alpha radiation, 
> you would have to disassemble the source until you get to the radioactive 
> isotope plated strip - or button - element. This is sort of not allowed, 
> and also can be very dangerous if you scratch off radioactive material. 
> From outside the detector you can only detect the Gammas from the Am-241 
> Also Quantities are sort of really high in these devices, depending on make 
> and model (1-100 uCi Am-241). If you really want to have alpha radiation, i 
> would purchase a Po-210 source from here: 
>
> https://www.spectrumtechniques.com/products/sources/disk-sources-and-source-sets/
>  
>
> They are like 60$, safe and legal to handle. Only disadvantage is short 
> half life of 138 days. 
> You also can find high power Po-210 sources here: 
> https://www.imagesco.com/geiger/radioactive-sources.html 
>
> Paul Andrews schrieb am Donnerstag, 26. November 2020 um 17:00:06 UTC+1: 
>
> And by 'alpha', I meant 'beta'. I actually did mean alpha, but I was 
> wrong. Still my old Geiger/Muller tube couldn't detect anything from these 
> nixies, so at least I can now detect beta particles. Now I need to find an 
> alpha source! Smoke detectors apparently. 
>
> On Thursday, November 26, 2020 at 10:27:17 AM UTC-5 Pramanicin wrote: 
>
> Still a bit of juice left! 
>
> Sent from my iPhone 
>
> On Nov 26, 2020, at 07:25, Paul Andrews < pa...@nixies.us> wrote: 
>
> Finally got an alpha detector for my GK-Mini geiger counter. First 
> picture is a regular nixie tube. Second is one doped with Kr85 
>  
>
>
>  
>
>
> On Friday, November 6, 2020 at 9:20:54 AM UTC-5 SWISSNIXIE - Jonathan F. 
> wrote: 
>
> Could also be Ra-226 on the 6140 
>
> gregebert schrieb am Mittwoch, 4. November 2020 um 16:32:02 UTC+1: 
>
> Maybe it's Thorium, used in the filaments. 
>
> On Wednesday, November 4, 2020 at 4:13:16 AM UTC-8 Paolo Cravero wrote: 
>
> Hi. 
> Let me add two pictures and a story. 
>
> Lately I picked up locally a bunch of small CRTs (2BP1, that also fit in 
> the vintage tuner currently on eBay, plus a Marantz) and the guy had a few 
> NIB tubes too. I was looking for gas-filled ones and that resulted in a 
> W.E. 6167 dekatron, some 0B2WA and some W.E. 6140/423A. Of particular 
> interest was the 6140 shown in the picture whose box mentions Kr85, but no 
> symbol on the glass. 
> When I came home I checked with a Geiger counter and SBM-20 probe (hard 
> beta and gamma particles) these tubes and the 6140 from 11/61 shows no 
> action. Same goes for other 6140 except for one, much older from 12/52 
> marked 423A. Neither the box nor the glass carry any warning sign, but this 
> tube hits >600 CPM vs 40 CPM background when 

Re: [neonixie-l] Safe handling of tubes containing Krypton 85

[SWISSNIXIE - Jonathan F.]

I advise against using smoke detectors. To detect heir alpha radiation, you 
would have to disassemble the source until you get to the radioactive 
isotope plated strip - or button - element. This is sort of not allowed, 
and also can be very dangerous if you scratch off radioactive material. 
>From outside the detector you can only detect the Gammas from the Am-241 
Also Quantities are sort of really high in these devices, depending on make 
and model (1-100 uCi Am-241). If you really want to have alpha radiation, i 
would purchase a Po-210 source from here:
https://www.spectrumtechniques.com/products/sources/disk-sources-and-source-sets/

They are like 60$, safe and legal to handle. Only disadvantage is short 
half life of 138 days. 
You also can find high power Po-210 sources here: 
https://www.imagesco.com/geiger/radioactive-sources.html

Paul Andrews schrieb am Donnerstag, 26. November 2020 um 17:00:06 UTC+1:

> And by 'alpha', I meant 'beta'. I actually did mean alpha, but I was 
> wrong. Still my old Geiger/Muller tube couldn't detect anything from these 
> nixies, so at least I can now detect beta particles. Now I need to find an 
> alpha source! Smoke detectors apparently.
>
> On Thursday, November 26, 2020 at 10:27:17 AM UTC-5 Pramanicin wrote:
>
>> Still a bit of juice left!
>>
>> Sent from my iPhone
>>
>> On Nov 26, 2020, at 07:25, Paul Andrews  wrote:
>>
>> Finally got an alpha detector for my GK-Mini geiger counter. First 
>> picture is a regular nixie tube. Second is one doped with Kr85
>> 
>>
>>
>> 
>>
>>
>> On Friday, November 6, 2020 at 9:20:54 AM UTC-5 SWISSNIXIE - Jonathan F. 
>> wrote:
>>
>>> Could also be Ra-226 on the 6140
>>>
>>> gregebert schrieb am Mittwoch, 4. November 2020 um 16:32:02 UTC+1:
>>>
>>>> Maybe it's Thorium, used in the filaments.
>>>>
>>>> On Wednesday, November 4, 2020 at 4:13:16 AM UTC-8 Paolo Cravero wrote:
>>>>
>>>>> Hi.
>>>>> Let me add two pictures and a story.
>>>>>
>>>>> Lately I picked up locally a bunch of small CRTs (2BP1, that also fit 
>>>>> in the vintage tuner currently on eBay, plus a Marantz) and the guy had a 
>>>>> few NIB tubes too. I was looking for gas-filled ones and that resulted in 
>>>>> a 
>>>>> W.E. 6167 dekatron, some 0B2WA and some W.E. 6140/423A. Of particular 
>>>>> interest was the 6140 shown in the picture whose box mentions Kr85, but 
>>>>> no 
>>>>> symbol on the glass.
>>>>> When I came home I checked with a Geiger counter and SBM-20 probe 
>>>>> (hard beta and gamma particles) these tubes and the 6140 from 11/61 shows 
>>>>> no action. Same goes for other 6140 except for one, much older from 12/52 
>>>>> marked 423A. Neither the box nor the glass carry any warning sign, but 
>>>>> this 
>>>>> tube hits >600 CPM vs 40 CPM background when put close to the SBM-20 
>>>>> probe 
>>>>> (it's not the right way to measure radiation, but it's cool :) ). There 
>>>>> is 
>>>>> definitely something else than Kr-85 in there! I have blurred pics of it 
>>>>> and it has been stored away from home.
>>>>>
>>>>> As already mentioned, Nixies did contain Kr-85 and I knew I had one 
>>>>> clearly marked. It's a Burroughs Self-Scan display that probably needed 
>>>>> some "doping" to handle the almost 1 MHz scan rate. BTW, it contains gas 
>>>>> and I might never use it, so if someone wants to experiment with 
>>>>> self-scan 
>>>>> contact me off the list.
>>>>>
>>>>> One question for the knowledgeable people in here. I have some Mullard 
>>>>> Nixies marked "Kr-0A": has it got something to do with Kr-85? I can't 
>>>>> check 
>>>>> with the Geiger since my probe does not detect Kr-85 leftovers.
>>>>>
>>>>> So, if you are on the hunt for active tubes, better look for unmarked 
>>>>> pre-1960 editions and carry a Geiger counter with you ;)
>>>>>
>>>>> Paolo
>>>>>
>>>> -- 
>>
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>> <https://groups.google.com/d/msgid/neonixie-l/3f26a1e5-5836-4ff5-b1ea-f95fab53151cn%40googlegroups.com?utm_medium=email_source=footer>
>> .
>> 
>> 
>>
>>

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Re: [neonixie-l] Safe handling of tubes containing Krypton 85

[SWISSNIXIE - Jonathan F.]

Could also be Ra-226 on the 6140

gregebert schrieb am Mittwoch, 4. November 2020 um 16:32:02 UTC+1:

> Maybe it's Thorium, used in the filaments.
>
> On Wednesday, November 4, 2020 at 4:13:16 AM UTC-8 Paolo Cravero wrote:
>
>> Hi.
>> Let me add two pictures and a story.
>>
>> Lately I picked up locally a bunch of small CRTs (2BP1, that also fit in 
>> the vintage tuner currently on eBay, plus a Marantz) and the guy had a few 
>> NIB tubes too. I was looking for gas-filled ones and that resulted in a 
>> W.E. 6167 dekatron, some 0B2WA and some W.E. 6140/423A. Of particular 
>> interest was the 6140 shown in the picture whose box mentions Kr85, but no 
>> symbol on the glass.
>> When I came home I checked with a Geiger counter and SBM-20 probe (hard 
>> beta and gamma particles) these tubes and the 6140 from 11/61 shows no 
>> action. Same goes for other 6140 except for one, much older from 12/52 
>> marked 423A. Neither the box nor the glass carry any warning sign, but this 
>> tube hits >600 CPM vs 40 CPM background when put close to the SBM-20 probe 
>> (it's not the right way to measure radiation, but it's cool :) ). There is 
>> definitely something else than Kr-85 in there! I have blurred pics of it 
>> and it has been stored away from home.
>>
>> As already mentioned, Nixies did contain Kr-85 and I knew I had one 
>> clearly marked. It's a Burroughs Self-Scan display that probably needed 
>> some "doping" to handle the almost 1 MHz scan rate. BTW, it contains gas 
>> and I might never use it, so if someone wants to experiment with self-scan 
>> contact me off the list.
>>
>> One question for the knowledgeable people in here. I have some Mullard 
>> Nixies marked "Kr-0A": has it got something to do with Kr-85? I can't check 
>> with the Geiger since my probe does not detect Kr-85 leftovers.
>>
>> So, if you are on the hunt for active tubes, better look for unmarked 
>> pre-1960 editions and carry a Geiger counter with you ;)
>>
>> Paolo
>>
>

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Re: [neonixie-l] Safe handling of tubes containing Krypton 85

[SWISSNIXIE - Jonathan F.]

I'm also owing a few radioactive tube, specifically purchased because they 
are! ;)
Don't worry about Co-60 and Kr-85 most of them had very few amounts of 
isotopes in them, and most of them are long gone. For example the  346C 
Tube nick mentioned, had 4.5uCi of Kr-85 in them when manufactured, this 
would, if new (manufactured today), be inside a shipping restriction 
indeed. You can only ship 0.27uCi Kr-85 international. But since Kr-85 has 
a half life of around 11years most of it will be gone today if the tubes 
are old. There are also some nixies with Kr-85, but these had lower amounts 
in them.  Sure there are some "Bad-Boys" out there that still contain 
significant amounts of isotopes even if they are old. For example usually 
spark-gap tubes. For example there are some 0B2WA Regulator tubes that have 
6uCi of Ra-226. Even if they are around 50 years old, the amount has not 
dropped significally, since Ra-226 has 1600years of half-life. Technically, 
they would also be forbidden to ship without proper declaration. But 
usually everything gets trough just fine, i have purchased a few of them

Also there is nothing to worry about the tubes as long as they are intact 
and do not break. Actually a very save way to collect radioactive items. 
Rocks for example are more "dangerous" since small bits and powder can come 
off.

If someone interested i can show pictures a few tubes ;) 



nickja...@gmail.com schrieb am Dienstag, 27. Oktober 2020 um 16:43:46 UTC+1:

> " A scintillator? Wow! That's serious stuff! :)"
>
> Haha, you just don't have the addiction going strong (yet).  I'm pretty 
> sure I am up over 20 scint probes or parts to make them now, and let's just 
> say quite a few G-M detectors.  And the different types of scint 
> detectors.  You have plastic, NaI, CsI, CZT, BGO, etc.
>
> On Tue, Oct 27, 2020 at 10:05 AM GastonP  wrote:
>
>> The source I use to test my Geiger counters (actually just one, and I 
>> switch the GM tubes) is a plastic bag with 3 NOS gas lamp mantles. They are 
>> quite hot.
>> I haven't had any luck (or perhaps that was actual luck) trying to detect 
>> natural radioactivity at the places I have access to, so every time I take 
>> my Geiger counter somewhere, I have to take the mantles too just to show 
>> that the counter works.
>>
>> > What kind of GM tube is in it? My entry-level scintillator gives me a 
>> background of ~1150CPM at 900V.
>> A scintillator? Wow! That's serious stuff! :)
>>
>> On Tuesday, October 27, 2020 at 11:24:11 AM UTC-3 Robert G. Schaffrath 
>> wrote:
>>
>>> Back in the late 1970's, I purchased an old ARC-44 radio that came with 
>>> a warning about Cobalt-60. Seems the 5829/WA and 5787/WA tubes contained 
>>> Cobalt-60. However, with a half life of 5.3 years, the tubes showed no 
>>> activity on a Geiger counter. By the time I got the radio as surplus, three 
>>> half-lives had already passed.
>>>
>>> On Monday, October 26, 2020 at 6:53:14 PM UTC-4 Pramanicin wrote:
>>>
 I received a box of dekatrons a couple years ago where some of them had 
 radioactive labels on the boxes. Just standard GC10B's, so not sure what 
 the label was warning me of, alas I don't have a geiger counter, but maybe 
 I should get hold of one!

 On Mon, Oct 26, 2020 at 3:35 PM Paul Andrews  wrote:

> Mine is a GK Mini with a SBM20 tube. Background with it is about 20 
> CPM.
>
> On Oct 26, 2020, at 6:12 PM, Mac Doktor  wrote:
>
> 
>
> On Oct 26, 2020, at 5:35 PM, Nick Andrews  wrote:
>
> Haha, the radium is the one that makes me nervous.  Tritium, Kr, etc 
> not so much!  Just watched Radioactive on Amazon (I think) about Marie 
> Curie.  A little slow but not bad.
>
>
> I read somewhere that the Curies would go out to their workshop after 
> dark and just stand there watching the entire room glow. There were 
> glowing 
> rings on the shelves where bottles had been sitting at some time in the 
> past, who knows how long ago.
>
>
> On Oct 26, 2020, at 6:00 PM, Paul Andrews  wrote:
>
> I have a couple of old alarm clocks with radium dials. My Geiger 
> counter goes crazy when it’s next to them.
>
> I also have some Uranium glass glasses and was surprised to get about 
> 20-30 times background off of them.
>
>
> What kind of GM tube is in it? My entry-level scintillator gives me a 
> background of ~1150CPM at 900V.
>
>
> My dad had prostate cancer a while back. They implanted something with 
> a half-life of two or three weeks. I checked him every half-life to 
> confirm 
> that the count had in fact decreased exactly 50%.  8D
>
>
> Terry Bowman, KA4HJH
> "The Mac Doctor"
>
> Q: Should car stereo speakers be pointed to the rear for more 
> thrust or up for more traction?
>
> A. On long trips, the 20- to 30% improvement in gas mileage you might 
> get with 

Re: [neonixie-l] That's one expensive clock....

[SWISSNIXIE - Jonathan F.]

Its expensive yes, but since they are trying to sell this to the general 
public, and are genuine company, i guess they will follow conformity laws for 
switzerland and europe, which leads to atleast 20'000 $ just for all the 
paperwork and emc/esd/safety lab tests! Also they need to provide warranty too. 
Sure after all i guess they do this to pay workers, and not just for fun...

If always wanted to sell a nixie kit, but it would kinda be risky when not 
doing the legal paperwork, in case something happens or you get reported it can 
be result im huge fines.

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Re: [neonixie-l] Re: 9-segment nixie posted on Ebay

[SWISSNIXIE - Jonathan F.]

I was in until 125$. 

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[neonixie-l] Re: 9-segment nixie posted on Ebay

[SWISSNIXIE - Jonathan F.]

Hopefully i will get this one :) 


Am Mittwoch, 22. April 2020 18:50:11 UTC+2 schrieb gregebert:
>
> Not my item / no affiliation:  
> https://www.ebay.com/itm/EXPERIMENTAL-NIXIE-TUBE-DEVELOPMENT-SAMPLE-PANDICON-RARE-UNIQUE-9-segment/223985955147?hash=item34269a714b:g:RKwAAOSwKk5eoG8n
>
>
>
> 9-segment displays are uncommon, and the nice thing about them is you can 
> make fairly decent-looking words with them.
> I have a similar tube (Burroughs 13404) which was used in some sort of HP 
> instrument, and will be making something with it soon.
>
> I hope to see someone make something from this.
>
>
>

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[neonixie-l] Re: IN-13 analog radiation ticker

[SWISSNIXIE - Jonathan F.]

Yes, its the ludlum 44-9 with an LND Pancake

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[neonixie-l] IN-13 analog radiation ticker

[SWISSNIXIE - Jonathan F.]

Hi folks,

I know this is not a real project or so, but i just wanted to share this 
with you.


I was conducting experiments with radiation today, and when i looked at the 
analog scale of my Ludlum Model 3 geiger counter, i was wondering how this 
would look in neon. Then i came up with the idea by controlling an IN-13 
with it. Basically i just clamped the analog meter (i did not want to 
physically modify anything on the meter) and take a voltage from the 1mA 
analog scale there. I amplified this signal by an opamp (LTC6268 was the 
one i had, any opamp will do). To control the level i added a potentiometer 
in the feedback path. The output of the opamp was controlling the IN-13 
current via a Transistor (KSP44 in my case. MSP44 will do too). 

The complete circuit was made from parts that i just had and is fully 
analog.

I've made a short video where you can see how this looks. I'm switching 
between "fast" and "slow" mode for counts about in the middle of the video.

https://youtu.be/aboBAb98Ji0 


I kinda like how this looks and works :-) maybe i will 3D-print a mount for 
the IN-13 (with a scale) and attach it to my other Ludlum meter. 

What do you guys think about it?

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Re: [neonixie-l] Re: B7971's on the bay....

[SWISSNIXIE - Jonathan F.]

Personally i noticed a price-rise in alot of items on ebay, not just nixies or 
tubes. I follow alot of searches of vintage tech and noticed that items are 
selling alot more expensive than a half year ago... Prices for nixies, huge 
tubes(decorative), other displays, radiation related items, gemstones 
meteorites minerals etc.

For a example, trinitite, fused sand by atomic explosions sold almost tripple 
the price in the last weeks compared to a year ago. 

maybe more people with money become geeks :-) or just the fear of "last 
remaining quantity"

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[neonixie-l] Re: Most overpriced nixie tube ???

[SWISSNIXIE - Jonathan F.]

I know this seller and purchased a lot of stuff from him for usually a good 
price. . Im sure this is sort of a joke ;) read the description... its just 
hilarous.
I bet he will accept a lot lower price for make offer ;)


Am Samstag, 14. März 2020 16:58:01 UTC+1 schrieb gregebert:
>
> Not quite an "upside-down airplane" postage stamp, but.Most likely an 
> engineering sample.
>
> Not my listing or anyone I know. 
> https://www.ebay.com/itm/Lucky-nixie-tube-unique-artefact-77-plasma-indicator/114149048472?hash=item1a93d04098:g:8WUAAOSwS3JebOxT
>
>
>
>
>
> [image: ScreenHunter_25 Mar. 14 08.56.jpg]
>
>

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[neonixie-l] Re: Displaying unused tubes

[SWISSNIXIE - Jonathan F.]

You mean "display" in form of putting them anywhere you can see them?

There is one material usually used when large dip-style components, its 
like styrofoam but its made out of plastics to you can easily push in the 
dip-pins, works with tubes too. Also one possible form would be to keep 
them in some kind of transparent tube (with caps). For Horizontal tubes it 
might be an idea to build some kind of a stand.

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[neonixie-l] Re: Road Trip to Apex Electronics in

[SWISSNIXIE - Jonathan F.]

When i was on vaccation in california in 2017 if discovered this place by 
accident on the web - and of course i went for a full afternoon just to 
look at all the stuff they have. Just amazing to see that some people even 
collect and sell this stuff, just wonderful.
I wish (or not ;) ) we had one like this in Switzerland. Then only thing 
that saved my wallet from going absolutely empty, was the fact that arrived 
by plane, and could not take any big items back. Only a few switches, nixie 
tubes and radioactive tubes made it to my home :D

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[neonixie-l] Re: IN-2 Binary Nixie Clock

[SWISSNIXIE - Jonathan F.]

Very cool desing! Also nice to see Arduino IOT-33, its a fantastic board, 
im working on a project with it too

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[neonixie-l] Re: NL-7094 Price Craziness

[SWISSNIXIE - Jonathan F.]

@ Jens,

Yes here is the link

https://www.ebay.com/itm/Vintage-039-Nixie-039-display-tube-valve-x-1-refA20-/164079945953?_trksid=p2047675.l2557=STRK%3AMEBIDX%3AIT=true=BQwgeXfF5hMY3KROTb20ZgHA1Bw%253D_cvip=true=true=nc

I belive its either hivac or etl, no markings present. Some GR-XX i believe.

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Re: [neonixie-l] NL-7094 Price Craziness

[SWISSNIXIE - Jonathan F.]

At all this price crazyness, ive seen and missed (because of unavailability to 
bid) some super cheap tubes. Recently a very old etl tube sold for 16£, a Rodan 
CD11 for like 30$, and a Pandicon ZM1200 for 150€, so the cheap ones are still 
seen you just have to wait

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Re: [neonixie-l] Re: IN-13 Music Visualizer

[SWISSNIXIE - Jonathan F.]

Holy Moly! Thats alot of IC's and potentiometers! Lovely, but amazing to see 
that all of them could fit inside a tiny package mcu

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[neonixie-l] Re: Lamptron Controller - ID these nixies?

[SWISSNIXIE - Jonathan F.]

Yes they could be swapped with alot of tubes (Burroughs B5092 and similar, 
ZM1020 Series, GN-4 etc etc) its a B13B socket, there are quite many that 
fit. 

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[neonixie-l] Re: Persistent seller!

[SWISSNIXIE - Jonathan F.]

Seems like a commercial surplus company, so they aim at people who need the 
parts to support old machines.

Its kinda the same with the NSN Surplus Sellers, i've contacted them for 
different tubes, and they told me that there are alot of people out there who 
run old machines (eg. airplanes or manufacturer machines). The NSN sellers have 
alot of rare tubes (eg 7094) but at a extremly high price. 

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[neonixie-l] Re: Russian Pandicon prototype

[SWISSNIXIE - Jonathan F.]

Hi Dieter, 

i do not have this tube, i just saw it in ebay, it was listed with another 
special tube, sadly the auction is so old, it cant be found anymore. Only 
thing is that i've remembered that the listed tube looked "bulkier" than 
the one listed in this post

It was in 2016 and also was discovered by Jens
https://groups.google.com/forum/#!searchin/neonixie-l/russian$20pandicon|sort:date/neonixie-l/G7FJnENcJwA/C72vQLE7QQAJ

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[neonixie-l] Re: Russian Pandicon prototype

[SWISSNIXIE - Jonathan F.]

This looks like one of the "more" advanced prototypes, i've sa a similar 
russian one that looked more experimental, having a very thick and messy 
grid tpye and alot of parts that were made with the pink cement material 
you and the pins looked more bulk. Saw that one on ebay a few years ago for 
like 500$, someone has made a pretty good deal on this acution now. 

Also nice to see that its running


The speial front view tube is just an endview version of the IN-23 tube. I 
was bidding on it but my limit was topped very quick...

Am Samstag, 7. Dezember 2019 18:47:50 UTC+1 schrieb Jens Boos:
>
> Hey Nixie friends, 
>
> Did you see the Russian pandicon-style Nixie tube? https://bit.ly/2PjUgAS 
> There was also a front view special display tube here: 
> https://bit.ly/2OZ6IXF 
>
> Too bad we don't know that much about Nixie tube history in the USSR... 
>
> Cheers 
> Jens 
>
>

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[neonixie-l] Re: NixiChron thinks it's 04 16 00, at least for today...

[SWISSNIXIE - Jonathan F.]

Not familiar with the clock, but what gps reveicer are you using? Can you 
vaildate that the GPS Timestamp is correct?  Since when do you have this 
issue?

There was a time rollover in november that can cause serious issues to 
older gps units!

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[neonixie-l] Endview IN-23

[SWISSNIXIE - Jonathan F.]

Check this out!

https://www.ebay.com/itm/EXPERIMENTAL-NIXIE-TUBE-FROM-MILITARY-STOCK-EXCLUSIVE-COLLECTION-RARE-STYLE/223753896555

Looks like a end-view version of the IN-23 tube.Never seen that one before

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[neonixie-l] Endview IN-23

[SWISSNIXIE - Jonathan F.]

Check this one out! :

https://www.ebay.com/itm/EXPERIMENTAL-NIXIE-TUBE-FROM-MILITARY-STOCK-EXCLUSIVE-COLLECTION-RARE-STYLE/223753896555

Looks like an end-view version of the IN-23, never seen that one...

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[neonixie-l] Special symbols?

[SWISSNIXIE - Jonathan F.]

The CK1907 is a +- symbol tube. And i suppose CK1903 is just the +- for the 
CK1904 numeric tube

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[neonixie-l] Pandicon on Ebay!

[SWISSNIXIE - Jonathan F.]

Hi Guys,

https://www.ebay.com/itm/Vintage-Mullard-ZM1200-Pandicon-Developmental-Nixie-Tube/193079978426?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160727114228%26meid%3Dfc4b9e139c964240be3e0ac21f64baa5%26pid%3D100290%26rk%3D1%26rkt%3D4%26sd%3D193079978426%26itm%3D193079978426%26pmt%3D0%26noa%3D1%26pg%3D2060778&_trksid=p2060778.c100290.m3507

Seems like a rather "OK" price, compared to other rare tubes!


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[neonixie-l] Re: Q: Gold colored coating on surface mount contacts

[SWISSNIXIE - Jonathan F.]

Also, it would be possible that this is some kind of additional soldering 
component, to make the part suitable to use as a module, to increase the 
future solder point.

For example, if you want to use a chip on a small pcb, which is later 
machine-soldered on a bigger pcb, it can be a problem, if your part on the 
"Module" pcb gets molten too. For normal parts, is uncommon to be used as a 
module (solder), but for these chips, and other one, its quite common to 
manufacture modules.For example, the U-Blox Nina Module, is based on a ESP32

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[neonixie-l] Re: Somebody Got A Great Deal

[SWISSNIXIE - Jonathan F.]

Wow! Lucky, hope that it fell in the hands of a builder or collector, 
rather than a reseller.

I socored a B7094 for around 250€ a few weeks ago, also a great deal. 

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[neonixie-l] Re: We all need one of these!

[SWISSNIXIE - Jonathan F.]

Am Samstag, 20. Juli 2019 01:07:51 UTC+2 schrieb Dekatron42:
>
> Where did 2GB disappear (32-30=2GB) - is it full of viruses, trojans or 
> more sinister malware? 


Maybe its just honest what you get. Usually drives are smaller than 
advertised. Alot of people use 1Gb = 1000Mb, but in reality its 1024 Mb! 
And then there is space for the filesystem reserves. I ordered a 6TB HDD 
last week which is ony 5.4 TB in reality (i knew that, its very common)

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[neonixie-l] Re: What do you guys think of my homemade Nixiewatch?

[SWISSNIXIE - Jonathan F.]

Amazing Work, very well made! How did u make the Case? 

The only very small thing i dislike is the screws :D I would have put torx 
or allen screws there ;)


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[neonixie-l] Re: Power for six (6) GR10G Nixies: 300VDC @ 40mA - small switching PSU?

[SWISSNIXIE - Jonathan F.]

Whats the input voltage?

I would recommend looking at LT3750 l LT3751. They have a refernce design for a 
300V 6A capacitor charger (can be modified to nixie supply) and also there is a 
500V, 150mA flyback design, which could be modified.I think going flyback is 
the best version.  Of course one also could build an isolated mains supply.

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[neonixie-l] 8091 assembly

[SWISSNIXIE - Jonathan F.]

Spottet this on ebay, if anyone is interested:

https://www.ebay.com/itm/NIXIE-GIANT-TUBE-3-IN-DIA-BURROUGHS-B8091-FULLY-TESTED-SET-OF-5/283528668460?

And not such a "bad" price for this rare B8091s... i

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[neonixie-l] Re: Weird rectangular 6G-E12A Magic Eye tubes I found

[SWISSNIXIE - Jonathan F.]

Oh wow, these are rather rare tubes! Lucky find 

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Re: [neonixie-l] Interesting nixie item...

[SWISSNIXIE - Jonathan F.]

About being in use after 2002.. there are a few devices out there still having 
super old items in them. Like Mill Machines with Nixie Display or Gas Pump 
displays ..

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[neonixie-l] Re: Suggestions for a LiPo powered nixie power supply design?

[SWISSNIXIE - Jonathan F.]

One Idea whould be trying to use the LT8580, there is an appnote about 
using it as a VFD Tube supply. Sure, you would need a second dcdc to reach 
9V, but those are super tiny nowadays. Could possibly fit on a 17mm board

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[neonixie-l] Re: Tube database?

[SWISSNIXIE - Jonathan F.]

Happy to hear all this response and interest! I wasn't expecting that. Now 
i'm feeling like i really want to do this project and start to make a 
concept on how to store the data :) And yes, Nixiebase is a very nice name!

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[neonixie-l] Re: Tube database?

[SWISSNIXIE - Jonathan F.]

I'm afraid google doesn't provide such a solution. 

The data would have to be stored in a database. MySQL has bad performance, 
but for this tube database which contains little data, it should be just 
fine. Interfacing with a web-page is very easy and is done millions of 
times on the web. A "own" solution has the benefits that it can be fully 
customized to the needs of the user, is independand and can be backed up/ 
migrated easily. A SQL dump can be importet to any SQL Database in case the 
server/hosting would have to shut down. 


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Re: [neonixie-l] Tube database?

[SWISSNIXIE - Jonathan F.]

Hi Jens,

Nice to hear! I already made a concept on the project, i will upload it 
tommorow. Im also very familiar with large and even complex sql databases since 
this is part of my work.

But such a project will only become great if there are people who are willing 
to help, mostly to either provide data or enter data. 

As terry wrote, the archived list also could be used and converted.

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[neonixie-l] Tube database?

[SWISSNIXIE - Jonathan F.]

Hi all,

I would like to present one of my ideas/dreams. Please notice, that this 
topic is not about how to do it, its just a general question of interest.


Nowadays nixie tube names are easily found by google, but there are alot of 
collectors that have many tubes, and other places where only a few tubes 
are listed etc. Sadly there is no "master" list of tubes, where you can 
find all (yet) known types.

Imagine a website where you can find only a list of nixie tubes, and their 
common paramters like size, characters and shape. The page would have a 
advanced search filter like you know from mouser or digikey shops when 
looking for parts. The list would conain each known parameter of a tube, in 
some cases maybe only its name and manufacturer, in other cases 
name,manufacturer,base,shape,size,characters.
The database would only provide text data about the tubes - no images or 
datasheets - if a collector owns a particular tube, a link could be added 
to see this tube on the collectors page. This would ensure that visitors 
still would visit the collectors pages instead of looking up tube images on 
the master database. So every collector could freely design his own website.


To make something like this come alive, it would need the help of people 
from this group. 


So, what do you think? Any opinions about this? Any interest?



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Re: [neonixie-l] Re: What a find!

[SWISSNIXIE - Jonathan F.]

Oh man, love that place!

When i was on holiday in the USA 2017, i spent a afternoon in their shop. 
What an amazing place... nothing like that here in switzerland. The only 
thing that saved my bank account that day, was the fact that i've came with 
plane and could not take anything large and heavy with me!.

The only few parts that came home with me were a few soldered out nixies, a 
radioactive transmit tube, and a few of these "safety cap" switches. 

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[neonixie-l] About high prices.. best things come cheap

[SWISSNIXIE - Jonathan F.]

There are a few posts about high prices of tubes, and i feel like quite 
alot of people are sad and worried about this. I want to share a little 
story of mine about tubes.

Since a few of you know, i'm more a collector than a builder. I want to 
collect single tubes and expand my diverse collection of nixies. In the 
roughly four years i'm collecting this tubes i came across dozens of 
auctions with ridicolous high prices. When the few months were over where i 
was busy getting most of the common tubes (IN-XX, ZM10XX) i searched for 
less known (or more rare) tubes. After seeing the first auctions of rare 
tubes going for crazy prices, i was quite sad and felt like "man, you never 
will get any rare tubes". Still i was curious about nixie tubes an focussed 
more about actually building a clock and learn more about these fantastic 
wonders of technology. Auctions came less interesting and i only checked my 
ebay-tool once a day. After some months i was taught that actually waiting 
and being patient does the job. In two years i aquiered quite a few rare 
and extremely rare tubes, which actually were extremely cheap, compared to 
other acutions. 

One of the biggest "secrets" is actually to ask sellers if the have more, 
and provide a few info about what you do with them.

Here are my "Top 4":

4.)  ZM562M2 and M3

These are german elevator nixies, one has arrows, one has letters. I 
aquired them from a german ebayer, i actually purchased a set of B5092 from 
him, and asked if he has other nixies. He respondes with a few single 
quanities and "two weird ones, that no one could use". After asking for a 
image, they turned out as these rather rare tubes. Got them both for 10€

3.) ZM1220

This very rare and rather big tube made it to me by luck. I was bidding on 
a carton box of different tubes, containig a few nixies. On the very bad 
pictures i thought its gonna be a Z566M, but when the package arrived, i 
was amazed about this wonderful tube. I payed only 45€ for the whole box, 
which containd a few other common tubes. 

2.) CD-27
I purchased some rodan character tubes from a german ebayer. After asking 
about more, and getting "yes some very ugly big ones" i requested images 
about them :). It turned out to be CD27 with black spots. He asked 75€ for 
them. I purchased them. When they arrived, alot of the black spots was only 
dirt and could be cleaned. Leaving me with on perfect and two slightly 
burned out ones. Out of respect i contacted the seller and offered him 
another 50€. Making 125€ for all of them, which is still a very cheap price 
for this tubes. One slightly burnded out one made a very nice trade with 
another collector

1.) GI-11B

This is for sure the most amazing tube ever. After buying a few old 
burroughs tubes, including the HB-106, the seller told me about a few more 
he has, but don't want so sell them since they are single pieces, old, and 
he doesn't think someone needs them. As i'm very curious for new types, i 
asked him what markings they had. Most were comon, but GI-11B came up. I 
replied that it must be GI-10 or so. No it wasn't, he told me about that 
its saying clearly "GI-11B Engineering Sample"... That rang bells. I asked 
if i can see an image. He told me about this former job at a electronics 
repair shop, that closed over 60years of operation, and left alot of stuff 
behind. After i told him about my hobby he was really enyoed that young 
people (like me) are still interested in such old stuff. End of the story 
was, that the offered me the tube for 10$ because of its oddity. I 
declinded the offer, paying only 10$ for such a tube would been ripping of, 
its likely he did not realize what value this tube has (materialistic and 
historical). I made him a better deal. 
This is my personal favourite tube - for one because of it rarity and 
specialit - for another because of the story


What i wanted to tell you with this, is that you not should feel bad or sad 
about tubes that are at a high price currently. If you have time and just 
keeping an eye on offers, one day you will find a very good deal for 
sure.One big "issue" about the high prices might be social media. I have a 
personal instagram account (not related to nixies) and i spot nixie tubes 
quite often in the discover feed on technical pages. This for sure draws 
the attention of more people to nixies who have not known them yet. This is 
bad and good in one way, sure its nice when there are more people 
interested in nixie tubes, but mostly those new people are the ones that 
just "like to have a vintage clock" instead of knowing the details. Thats 
quite the same thing with people who want to build IoT devices and know 
jack about resistors and basic parts. 

Maybe one day this "hype" about some tubes will fade, and they will come 
back to a normal level. Just be pacient and keep your eyes open for good 
deals!


Cheers,
Jonathan 

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[neonixie-l] Re: What a find!

[SWISSNIXIE - Jonathan F.]

Was this item found at Apex Surplus? :D

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[neonixie-l] Re: Gorgeous GR10N tube

[SWISSNIXIE - Jonathan F.]

See google drive link for high res images

https://drive.google.com/open?id=1IcmaoIi5c0BIlBYfUhnKhZzmmhUukwGT

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[neonixie-l] Re: Lot's of high priced B7971 from France...

[SWISSNIXIE - Jonathan F.]

This seller is known for nixie tubes, and even special ones. I wonder where 
you get them.Mostly because of the packing, since B7971 usually were 
plugged from equipment, it looks like this seller had acces to ex-stock of 
spare parts.

There are alot of suppliers that actually carry nixie tubes, but usually 
extremely overprices, since they aim for comercial users. Most of these 
suppliers are "Aircraft Parts" or "Military Suppliers". I asked a few for 
prices, but they are extremely high. Maybe this seller from france had 
enough money to get a bigger value and count to get a better price. I 
wonder how many tubes are sitting in the hand of such suppliers.

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[neonixie-l] Re: Ultronic Brokerage Display >>Controller<< on eBay

[SWISSNIXIE - Jonathan F.]

By lookig at it, i'm in doubt that this is actually the controller. It 
looks more like a power-supply with a few extra things. For a controller it 
doesn't show any bulk amount of ic's or transistors. I remind seeing an 
image of a lectra-scan (7971 tube stock ticker display) that was controlled 
by a large, desk-type control panel, but sadly i don't find the picture..

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[neonixie-l] Re: This is getting out of hand

[SWISSNIXIE - Jonathan F.]

Yes, totally out of hand, i own 18pcs of this tubes... would make a fortune 
to resell them, but i keep them because i like them, and i like them even 
more.

Personally i think, even tubes are now a victim of social media. I have a 
personal profile on Instagram and i see alot of electronics and even nixie 
clocks there some times, since most of the people seeing stuff online in 
social media (fb, ig etc) don't know jack about electronics, they just look 
for something to buy thats a finished product, price doesnt matter. I 
noticed prices going crazy over vintage stuff all the time, and i get 
spammed by people that want to purchase stuff out of my collection. 
Actually people offer 700$ for a pandicon tube, wtf.

Hopefully the hype will be over some day :) Some days i think about 
purchasing 5mm LED's for 0.10$ and vacuum them in bags to sell them for 10$ 
in 40 years :-)... or those 2x16 LCDs heheheh

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[neonixie-l] Re: Geesh NL-934

[SWISSNIXIE - Jonathan F.]

They look nice. But its a bit over priced for me, especially when the 
markin is missing..

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[neonixie-l] Looking for symbol tubes

[SWISSNIXIE - Jonathan F.]

Hi Terry,

My site is based on a database, i can run a query about symbol tubes and send 
you a excel file if that would help

let me know


Cheers, Jonathan

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[neonixie-l] Re: Push-pull driving cathodes

[SWISSNIXIE - Jonathan F.]

The LT3757 looks quite like a nice ic, i will try it with the transformer 
*PA0367A 
*from Pulse elctronics, its quite small. Since its only availabe from 
digikey, i have to wait until i have an order big enough to order at 
digikey :/

Probably alot of people are not into new supplies because mostly (like in 
any other electronics project) the new and good IC's don't come in SOIC or 
DIP anymore, so you need to know how to solder leadless packages In a 
few other hobby projects i run into the problem that the ic of choice was 
only available as BGA...

One thing about nixie power supplies is usually that the efficiency is 
alway given at like 50mA, but usually a normal nixie clock uses way less. 
Even 6 IN-18 would only require around 40mA supply. Smaller builds tend to 
use 25mA or even 15mA. Nearly every converter is inefficient at low 
currents, since the losses are in absoulte values not in percent. "loosing 
5mA" at 50mA would give you give you 90%, but the same design probably also 
looses 5mA at 15mA output so that would be way more bad. Alot of people are 
fooled by this fact.

I saw a quite cool design by linear technologies that has around 85% 
efficiency at 20mA Ouput, which is enough for a IN-8 clock or so. 

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[neonixie-l] Re: The B-7971 Shoutbox lives again (for a limited time only)!

[SWISSNIXIE - Jonathan F.]

What a lovely idea this is! 

I was thinking of building a 7971 Circuit where people could snap their 
very private 7971 Text via the internet, by sending the content and getting 
a image in return, but well, since someone already had this idea, i'll 
leave it to it and start thinking about other unique circuits :))

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[neonixie-l] Re: New Nixie Clock now available at Badnixie.com, The "Black Emerald-8971"

[SWISSNIXIE - Jonathan F.]

Hi Michael,

Very beautiful clock with rather rare tubes! I like how it can be used as 
clock or word display, and especially the nice little opton modules are 
quite nice and a really good idea. I like how the pcb shows, but personally 
i would have made that one in black with ENIG finish to match the clocks 
case.


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[neonixie-l] re warantee on unproven products

[SWISSNIXIE - Jonathan F.]

Looks professional, lets see how this comes out. The original IN-18 was 
manufactured in Sovejet Union in the town of Rovno, which is now ukraine... as 
far as i know, the last IN-18 were made in 1992, only 26 years ago. There might 
be the possibilty that they found people that actually were working in the 
IN-18 factory and have knowledge about these tubes but its just a wild 
guess..

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[neonixie-l] My clock

[SWISSNIXIE - Jonathan F.]

Lovely! Does it still work with the 1969 parts? Interesting to see that people 
even back then were interested in hobbyist nixie clocks! 

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[neonixie-l] Re: Increasing output current limit on MAX1771 power supply design

[SWISSNIXIE - Jonathan F.]

Why do you plan to drive all the segments of a B7971? Do you realized that 
this would need a resistor on each cathode? If you use one anode resistor, 
the current changes depending on how many cathodes are grounded. This 
results either in tube damage or not working/darker display.  I suggest to 
multiplex this tube.

About the mosfet, 21A or even 32A is overkill, but the problem is, that 
usually mosfets that have a low RDSon and GateChange, have a lot of current 
rated. If you use a Rsense of 25mOhm, the maximum current would be areound 
3.5A@5V, so a mosfet with a few amps more should work fine, but low current 
fets usually have higher RDSon. This is why most DC/DC Converters use 
overkill Mosfet.

Rdson and GateChange influence the efficiency of the circuit, so lower is 
better, your chosen mosfet has 160mOhm, you could go lower.  I've used the 
FDPF44N25 a few times:
https://www.mouser.ch/ProductDetail/512-FDPF44N25T

The Inductor looks fine. 


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[neonixie-l] Re: Pandicon ZM1200 in Action!

[SWISSNIXIE - Jonathan F.]

Since i'm not getting any kind of positive effect by software changes 
(time, pattern etc),i looked at the circuit and found a small problem 
(V-Screen was connected to Vbias) which was fixed, sadly this changed also 
nothing to the problem, so i searched my old pandicon calculator in the lab 
and took measures.


The first very odd thing i noticed is that they don't bias the anode! They 
just apply high voltage on the and then go straight back to 0V at the 
anode. The next very strange thing is that the driver of that calculator 
doesn't seem to be "on" all the time, it looks like the HV turns on for a 
short time, and then decays to 0V "slowly". In the first screen of the 
scope here you can see a few anode pulses that turn on quickly and then 
decay to 0V, the duration of this pulse is around 2ms. In the second pic 
you can see one pulse magnified in time were its visible that the "steady" 
HV is only active for around 200uS before starting to fall






I also checked what the cathode drivers do, which turned to be exactly what 
i thought, the ARE biased with around 75V as specified in the datasheet and 
are pulled low and then return to bias. In the Screenshot you can see 
cathode "0 digit" (green) following anode 1 (blue) and cathode "1 digit" 
(yellow) following anode 2 (red). For the test i set "10" on the calculator 
which meant 2 cathodes have a value to display, and 6 have not! Its very 
interesting how the "processor" works with that. If you look at the yellow 
trace, which is the second cathode (which display the 1 of 10), it does not 
return to bias after the anode turns off, it just stays LOW for the rest of 
the switching cycle. Thereby the processor saves some operation to not go 
back to HIGH again. Very insteresting to see what kind of logic they 
already had at that time. 



My conclusion now is that maybe i can try to not even turn anodes on that 
don't have to display anything, just leave it off. Currently i'm turning 
them on, but don't activate any cathode since i've have nothing to display. 
Could it be possible that a "charge" is trapped in the tube by that?
I also will make a experiment with no Anode bias, as in the calculator

If anyone here knows more about panidcons and there use i'm happy to hear 
about!

- Jonathan 

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[neonixie-l] IN-8-OC Nixie tube wanted

[SWISSNIXIE - Jonathan F.]

Hey Jens

there are currently 4 on ebay, auction number 163438761104, maybe the seller 
has single pieces..

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[neonixie-l] Re: Panaplex gas pump still pumping

[SWISSNIXIE - Jonathan F.]

Am Freitag, 26. Oktober 2018 06:01:06 UTC+2 schrieb 严泽远:
>
> I also have been to a gas station in Page near Antelope Canyon, the pump 
> still using Panaplex displays, I used to drive over 5,000 km around the 
> west coast with my wife last year.
>
>
I probably know that one! I was in Page last year and also purchased gas at 
a station that used panaplex.  


Am Freitag, 26. Oktober 2018 13:47:05 UTC+2 schrieb Terry S:
>
> There's a little primitive service garage locally that still has a 
> mechanical pump in operation. No fancy Panaplex displays, just rolling 
> digits. You can see where the face of the pump had been modified with a tin 
> snips to accommodate a mechanism with the extra $ digit.
>
>
Here in Switzerland a lot of privately owned fuels stations (no brand fuel) 
are still using mechanical flip displays, i like the "chckckckckck" sound 
when they count up the price. 

 

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Re: [neonixie-l] Rare B8971 Nixie tubes

[SWISSNIXIE - Jonathan F.]

Nick, do yo mind telling the source where i can get 8791's for 100$ ? :O


Am Samstag, 13. Oktober 2018 00:00:55 UTC+2 schrieb Pramanicin:
>
> 8971's are currently about $100 each7971's are about 80 to 100 for the 
> last while (there have been some bargainsask me how I know...;-). I'd 
> say on a price basis it's a reasonable swap, but on a rarity basis you're 
> right Jens, but that can sometimes depend on the use case, and as far as I 
> know, there's no plug and play clock for the 8971'sThe MOD_6 has 
> generated the demand for the 7971's however IMHO.
>
> Cheers,
>
> (Pharma) Nick
>
> On Fri, Oct 12, 2018 at 2:37 PM Jens Boos  > wrote:
>
>> I honestly don't think that a 1:1 trade is representative of the value of 
>> the 8971's. But it's your call of course. Jens
>>
>>
>> "Kevin A." > hat am 12. 
>> Oktober 2018 um 22:01 geschrieben:
>>
>>
>> Hey guys,
>>
>> Just thought I'd share some pictures of my latest purchase; six Burroughs 
>> B8971 tubes. These babies are in great shape, and as far as I can tell are 
>> quite rare. 
>>
>> I'm going to trade 1:1 with a buddy of mine for some NOS 7971s. I 
>> originally wanted the bigger tube, even though they are more common. These 
>> are really for a guy who has it all and craves the rarity, aka my pal. 
>>
>> Anyways, thought I'd snap some pictures and show them here before I 
>> trade. Take a look:
>>
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[neonixie-l] Re: HV5530 problems

[SWISSNIXIE - Jonathan F.]

I'm using HV5122/HV5222 in all my applications, and im pretty sure most of 
the microchip HV series are identical only differ in voltage and some 
protocol types. 

They can be driven at 5V, but 'm using a Level Shifter (CD4504) to shift 
from 5 to 12V

How ever, one major issue with these IC's is that if you use arduino, 
flicker can occur depending on your arduino and code.
If you translate the "digitalWrite()" to assembler code, you get about 55 
assembler commands.

To shift out 64bit of data, you need around 130 "digitalWrite()"'s if you 
do it sloppy, if you check for following 0 or 1 you can save some, but lets 
figure you need 130.

130 digitalWrite() * 55 Assembler commands = 7150 commands. 
If your Arduino runs at 16Mhz one command takes about 62ns
If your Arduino runs at 8Mhz one command takes about 124ns 

To run 7150 commands, it would take 443us for 16Mhz and 886us for 8Mhz. 
And this calculation does not include delays in execution that are created 
by interrupts! So in some case you will se flickering in the digits! It 
happened to me alof of times, so i created the follwing function that can 
be way faster than digital write:

 https://github.com/sgtJohnny/sunix/blob/master/sunix.ino

#define DATA PD5 //define Dataline 
> #define OE 6 //define latch pin 
> #define CLK PD7 //define clockline
> #define thePort PORTD //define Hardware port where Shift-Registers are 
> connected 
>
 

> void setOutputs(unsigned long val_one, unsigned long val_two) { //Function 
> to shift out 2 x 32bit fast enough to prevent flicker!
>
// WARNING! 
> // This functions operates directly on ports, not via digitalWrite() 
> // because digitalWrite() would be to slow, and display would flicker 
> // if different pins are used, you maybe hav to change the variable 
> "thePort" 
> // to the matching I/O port letter of the controller! 
>
> digitalWrite(OE, LOW); //Disable Outputs to prevent flicker 
>
> //Send first 32-bit variable value 
>
> for (int i = 0; i < 32; i++) { 
> thePort &= ~_BV(DATA); //Data LOW 
> if ( bitRead(val_one, i) == 1) { 
> thePort |= _BV(DATA); //Data HIGH 
> } 
> thePort |= _BV(CLK); //CLK HIGH 
> thePort &= ~_BV(CLK); //CLK LOW 
> } 
>
> //Send second 32-bit variable value 
> for (int i = 0; i < 32; i++) { 
> thePort &= ~_BV(DATA); //Data LOW 
> if ( bitRead(val_two, i) == 1) { 
> thePort |= _BV(DATA); //Data HIGH 
> } 
> thePort |= _BV(CLK); //CLK HIGH 
> thePort &= ~_BV(CLK); //CLK LOW 
> } 
> digitalWrite(OE, HIGH); //Enable Outputs 
>
> }
>

If one would use a Arduino Mega or STM32 you could use the second SPI Port 
to shift out to the Registers
 

>

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[neonixie-l] Re: Manuel Azevedo - 1977-2018

[SWISSNIXIE - Jonathan F.]

Very shocking news! :(

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[neonixie-l] Re: Interesting indicator on Ebay

[SWISSNIXIE - Jonathan F.]

Looks like the russian made quite a few special makes, this one is similar 
to one i spotted in a older post:

https://groups.google.com/forum/#!searchin/neonixie-l/russian$20pandicon%7Csort:date/neonixie-l/G7FJnENcJwA/C72vQLE7QQAJ

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[neonixie-l] Re: RoHS Certification of Nixie Tubes

[SWISSNIXIE - Jonathan F.]

Hi, 

Just my 2 cents:

I think its not a question of possibility. First of all, i'm not sure if* 
all *tubes even contain mercury because i bet Dalibor would not use mercury 
on the tubes he makes. Usually mercury is only used in "long life" tubes. 

One issue is that probably the manufacturer needs to get the rohs 
certification - and that would take all old tubes out of line. I don't 
think you can't get a certification on a old stock product. 

Also, there is the question why one would need the certification, which 
costy and brings liablities. Nixie tubes are mostly only of interest for 
hobby people, and most of them don't care about any industrial regulations 
and a lot of them even solder with lead-containing solder wire...If you 
actually want to sell a product conatining nixies you will have to follow 
alot of other different regulations from the electronic authorities. I 
wanted to sell a kit *really legally *but my dreams were blown to dust when 
i found out what it would cost to get all needed licences, not speaking 
about actually passing them, just the application for them.

Cheers,
Jonathan

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[neonixie-l] Re: Pandicon ZM1200 in Action!

[SWISSNIXIE - Jonathan F.]

VPP of the Anode HV513's is set to around 186V currently,
VPP of the Cathode HV513's is depending on the HV, but is around 75V, which 
is in spec of the 70-100V Vkk from the Datasheet
Anode OFF-Voltage is 104V which is in spec of 85-115V


If i set cathode and anode at the same cycle, the time for anode rise and 
cathode fall is around 2.5-5uS, same goes for deselecting
See attached two screenshots from a oscilloscope, yellow= anode, 
green=cathode, blue= Output Enable




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[neonixie-l] Re: Pandicon ZM1200 in Action!

[SWISSNIXIE - Jonathan F.]

VPP of the Anode HV513's is set to around 186V currently,
VPP of the Cathode HV513's is depending on the HV, but is around 75V, which 
is in spec of the 70-100V Vkk from the Datasheet
Anode OFF-Voltage is 104V which is in spec of 85-115V


If i set cathode and anode at the same cycle, the time for anode rise and 
cathode fall is around 2.5-5uS, same goes for deselecting
See attached two screenshots from a oscilloscope, yellow= anode, 
green=cathode, blue= Output Enable





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[neonixie-l] Re: Pandicon ZM1200 in Action!

[SWISSNIXIE - Jonathan F.]

I did tests to remove ghosting, but none seem to work

Basically i do create a timer element (50us-500us selectable)


TimerEvent 1 :   select cathode X
TimerEvent 2:turn Anode Y off
TimerEvent 3:wait
TimerEvent 4:wait
TimerEvent 5:wait
TimerEvent 6:turn Anode Y off, reset TimerEvents

I  did this because i thought it actually would help if the cathode stays 
on for a while to "discharge" but it doesnt change a thing, also chaning 
the timer duration does not change anything, i also tried to "drive it 
hard" which means 

TimerEvent1:  select cathode x, turn on anode Y

TimerEvent6:  turn both off, reset


Maybe it is an electrical issue will investigate further

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[neonixie-l] Re: B6091 Radaitor Clock

[SWISSNIXIE - Jonathan F.]

Lovely 3-D printed case! Totally awesome

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[neonixie-l] Re: Weird dotmatrix Nixie

[SWISSNIXIE - Jonathan F.]

Is it sure that its actually nixie/panaplex? Could be VFD too?

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[neonixie-l] Re: How can I make a NIXIE WATCH case

[SWISSNIXIE - Jonathan F.]

First of all, if we are talking about a wristwatch here, one big challenge 
will be design at first. Depening on how complex you want to make the 
design, you alot of expereince with a 3D-CAD software. 

If you have the design finished, i would 3D print (plastic) it to see if 
its like you want it and then either have it 3D printed in Metal, or use a 
CNC Service. 3D-Hubs offers CNC since a few weeks:
https://www.3dhubs.com/cnc-machining

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[neonixie-l] GPS for nixie clock

[SWISSNIXIE - Jonathan F.]

Hi, i use a arduino library called "NeoGps" that is very small and efficient, 
inside a config file you can select which info you need, if you only select 
time, then only the time messages get parsed

Search for neogps on github, its very well described

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[neonixie-l] Ever seen this?

[SWISSNIXIE - Jonathan F.]

Found this by accident
https://www.ebay.com/itm/Old-vintage-NOS-NU-IDPI-144-Made-in-USA-radio-antique-apparatus-vacuum-tube/263659229862

Look at the white top, kind a looks like a neon bulb coating (flourecent), 
but why would a neon buldb have so many pins?

Could that be a small crt tube like the NIMO ones?

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[neonixie-l] Destined for space no less...

[SWISSNIXIE - Jonathan F.]

got one! the sale of 6 was already gone, but there was a listing for single 
pieces too :)

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[neonixie-l] Re: Name that tube

[SWISSNIXIE - Jonathan F.]

yes could be B4021 or B-8502


OT: Did u made a template with bases to note down positions of numbers on 
pins? if yes, great idea!


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[neonixie-l] Re: PCB fabricator recommendations/comparisons?

[SWISSNIXIE - Jonathan F.]

I started using ALLPCB a few weeks ago and are very happy with speed, 
quality and service. I ordered 5 boards and got 7 which 2 were not flawless 
but 100% usable (the soldermask had small scratches around big holes, but 
no electrical problems!)

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[neonixie-l] Re: PCB fabricator recommendations/comparisons?

[SWISSNIXIE - Jonathan F.]

I started to use Allpcb a few weeks ago and are very happy with their 
service. The cheapest is leaded surface finish..

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[neonixie-l] Re: Nixie Tube Rodan CD47/Gr-414 (OKAYA)

[SWISSNIXIE - Jonathan F.]

I'm a bit suspicious here too... first of all the seller has zero 
reviews... and only allows bank transfer - which can't be tracked the easy 
way. 

Yes Nick, the text means exactly what you have translated. 

I would never purchase an untested CD47 or so, too much of a risk.. :) 


The problem with private sale is a german thing, you are *required  *to 
specifie that, if you don't do that, the buyer would have the legal right 
to give the item back in 14 days (for no reason), and for "new" items you 
give warranty. Its not a bad thing if someone has this sentence on a 
listing, its just protecting the seller, since germany has a riddicoulus 
"customer protection" -law.  Alot of german companies don't sell to private 
people, because they could be sued for alot of reasons...

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[neonixie-l] Re: OT: Radioactive clock

[SWISSNIXIE - Jonathan F.]

Spinthariscopes are very nice! 
You can still buy them! 
http://unitednuclear.com/index.php?main_page=index=2_12

About the danger:

There is literally no danger about the scope, because the particles you see 
are mostly  alpha-radiation that do not pass through the looking glass. 
Alphas rarely can pass paper...
Also Radium in clocks would only cause potential danger if you would keep 
your clock all the time in your pocket - or whats way worse - the radium 
would get out of the clock and into your body. 

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[neonixie-l] Re: OT: Radioactive clock

[SWISSNIXIE - Jonathan F.]

Nice to see other people with interest in radiation :)

The clocks are probably radioactive because of their paint on the watch 
hands. In the 1930's they used radium paint to make night glowing watch 
hands. Radium contains radioactive isotopes (Ra-226)

Before people got silly about radiation, radioactive material was used for 
quite a few consumer products like watch hands, vacuum tubes, uranium glass 
pottery, lantern mantles.  Running around with a scintillation counter 
(more sensible geiger counter) on a vintage flew marked will usually bring 
up some items :) 


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Re: [neonixie-l] Re: Chinese nixies..

[SWISSNIXIE - Jonathan F.]

These look nice, probably going to buy one. I would say the price is fair, if 
they are so rare. Compared to what people pay for German/USA/Japan Nixies >30mm 
digits80$seems fair for a so rare tube. I wonder if the seller has more 
tube types :)

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Re: [neonixie-l] IN-8 lab model

[SWISSNIXIE - Jonathan F.]

Very interesting to see russian tubes with red painted glass!

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[neonixie-l] A few different LARGE Rodan Nixies for sale on German eBay!

[SWISSNIXIE - Jonathan F.]

Yes, very beautifull tubes... sadly the price was out of my range quickly..

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[neonixie-l] Re: How to mount IN-9 tubes

[SWISSNIXIE - Jonathan F.]

I would possibly use a piece of rubber tube where you can place the tube 
in, just like a few kits place their colon tube

See https://www.nocrotec.com/shop/images/content/colon-02.jpg

Another possible solution would be to use a slotted-pc board and then glue 
in the whole tube base with kind of silicon glue (sticky but flexible).

Another version would be this:
https://threeneurons.files.wordpress.com/2015/02/ntherm01s.jpg



Am Montag, 19. Februar 2018 13:07:17 UTC+1 schrieb John Murphy:
>
> I'm building an audio spectrum analyzer using the MSGQ7 chip, an Arduino, 
> and 14 IN-9 tubes (7 Left channel and 7 Right).  I've got everything 
> working on the bench, but now it's time to get things mounted for display!  
> I'd like to have the tubes stand vertically next to each other.  I'm 
> looking for suggestions on how to securely mount these tubes.  If possible, 
> I would prefer to mount at the bottom only so that the top of the tubes are 
> free and clear.
>
>
>
>

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[neonixie-l] Story Time: How you got to the nixie hobby?

[SWISSNIXIE - Jonathan F.]

I made this post to share my story how i found my way to nixie-tubes, and 
i'm curious how everyone else came to this hobby :)

My way to nixie tubes was a "double accidental". The very first encounter 
with this type of tubes were around 2001 when i was around ~10-11 years 
old, along my way to school there was a little local scrapyards, where me 
and my friends used to go and collect all kind of materials for more and 
less usefull constructions of electronic. One day we tear apart a old 
calculator that had "strange looking number tubes" and we took a few of 
them home, after a few tries to get them on with a lab power supply and the 
few search request with the internet of that time didn't bring up anything 
helpful, so the tubes ended up in a storage container, which ended back at 
the scrap yard again..
I never seen a vacuum or nixie tube again until 2013. At that time i 
ordered a few GM-Tubes from a bulgarian seller on ebay, he put a few IN-12 
as a gift in the package. I instantly remembered my old scrapyard find, and 
started to reseach these type of tubes just for curiousity. From there on i 
fell in love with the typical orange glow that instantly remains of "old 
age" (from my point of lifespan :-) ) and just looks very beautiful. I 
quickly discovered that there are alot of different types of nixie tubes 
around, so i started collecting them. I also started to find out more about 
old electronic technology, and started to collect all kind of vacuum tubes 
and circuits. About a year in collecting tubes and stuff i noticed that i 
will run out of space.. so i had to decide to only collect nixie tubes 
since they don't take up to much space. Today, 5 years later I own around 
240 different types of nixies with around 600 tubes total.

Im very interested in how you got to the tubes, since there are a lot of 
people here that have seen encountered nixies when they still were a normal 
electronic part and not something considered rare or collectible.

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[neonixie-l] Re: MCU religious wars (OT?)

[SWISSNIXIE - Jonathan F.]

To be potically correct ;-)  :   * Arduino  *is not a micocontroller, its 
just a simplification of programming language. Mostly "Arduino" projects 
are running on Atmega MCU's from Atmel, but Arduino can also run on 
ESP8266, Atmel ARM and even som ST STM32.

I think the modern microcontrollers are mostly the same level for hobbyist 
and most commercial application. To switch a few leds or control a display 
any modern MCU will do the job. Its either a question of knowledge and 
infrastrcuture. If your company used Atmel for the last 10 years, its pricy 
to change to ST or so. 

About the "Arduinos" or Ardunio with own design:

I really like it, since it takes a part of programming away. Arduino was 
designed for people who don't see programming or even electronics as their 
main hobby. Alot of people like to do stuff with lights (e.g. for Art 
projects) or other parts. Getting familiar with electronics can be a 
challenging hobby itself. The Arduino Language can be learned very fast, 
and the support is really great, even for beginners. You can get an anwer 
in the arduino forum even for the most simple (or hard for someone) 
questions. Try ask Microchip or ST Forums for "how to turn a led on" - you 
either get ignored,removed or people make fun out of you. 

I have a friend which is 15 years old, shes choose electronics as a 
voluntary school course. They get pretty cool projects to work in just a 
half year. I remember when i had to learn PIC programming for mandatory 
school, and we were learning just all the commands for weeks without doing 
anything usefull, or filling 2 pages with instructions just to blink a led. 
So arduino is just a good thing to "lure" people to programming, if you get 
a easy start you might be more motivated to learn more complex things. Also 
a arduino can be plugged to usb and you can start right away! No fancy 
debugger tools :-).  

On the downside, arduino is just a performance killer, if you take a look 
at "digitalWrite" as a professional, its just a waste of processor speed 
and code. And if you want to get arduino running on a custom chip, you will 
be on your own.


My main MCU's are the Atmega328p (QFP & DIP) , ESP8266 and newly STM32

The ATmegas are cool because they run native with arduino, and there is 
still a DIP Model available which is just great if you want quickly test 
something - try to place a QFP in your breadboard :)
ESP8266 is wonderfull because its really cheap and brings wifi on its own...

I'm currently starting to learn STM32 (ARM), because i for my other 
projects the Atmega328 has just to few pins or is just too slow. But for 
nixie projects where time is not that critical the Atmega is still my 
favourite. But for like building a gamma spectrometer the chip will run out 
of speed, memory and power.

As far as i know, ARM (STM32, NXP, etc) can be programmed mostly the same.  
Also the STM32 IDE's bring debugging features that can be really time 
saving if you just can place a breakpoint where you think there is a 
problem. If you have a very big code on arduino (like 10 A4 Pages) you will 
search for hours for errors. 

STM32 also offers quite nice evaluation boards (with displays) which can be 
used to save on custom PCB's ...

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[neonixie-l] Re: $78 nixie watch on eBay

[SWISSNIXIE - Jonathan F.]

Imagine how fat that looks if you make a proper case around that. Also the 
alignment of the digits is very odd! They should be at leas in the middle...

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[neonixie-l] OT: Vacuum Tube Projects?

[SWISSNIXIE - Jonathan F.]

Hello Folks,

Being relatively young, i clearly missed the vacuum tube age by a lot of 
years :-) Still vacuum tubes and especially nixies became my hobby and i'm 
very interested in them. 

The internet is full of audio vacuum tube projects like amplifiers. But i 
don't want to do audio projects for a buch of different reasons. But i 
really would like to do a project with vacuum tubes (other than nixies..) 
that is usesfull to, and shows the beauty of these devices. 
The only audio device i would build is a radio, but since AM/FM gets less 
supported i don't know if its a good idea. 

Can anyone here make suggestions what useful* project could be made with 
vacuum tubes other than an amplifier?

Thanks for your suggestions



* by useful i mean something you could use for a purpose and not just a 
construction to decorate a shelf.

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[neonixie-l] Re: Z5680M Lab sample

[SWISSNIXIE - Jonathan F.]

I posted it just because it might be interesting to see this 


Yes the price is crazy, and personally i never would buy a tube for that 
price, its just not relative... 
I own a GI-IIB Engineering Sample and that was nearly for free because the 
seller wanted it to have a good place not make a fortune :)

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[neonixie-l] Z5680M Lab sample

[SWISSNIXIE - Jonathan F.]

There is currently a ebay acution for a Z6580M lab sample...

https://www.ebay.com/itm/232586867055


Enjoy :)

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