[neonixie-l] Re: Constant current source design

Have you tried to ask for instance Supertex (nowadays Microchip) about their LR8, the IXCP10M45S (10M90S) or the DN2540 regarding CCS designs? It seems like some audio people use the DN2540/IXCP10M45S in combination with either a low dropout voltage regulator like LD1085 or the LM317 to either

[neonixie-l] Re: OT: Analog Discovery II

I need to check some high voltage analog signals, from dekatrons and polyatrons and such, while checking some low voltage digital and analog signals while also checking an I2C-bus, and it would feel a lot better to hook up my scope with its high voltage probes to the dekatrons and use the

[neonixie-l] Re: OT: Analog Discovery II

Nick, I browsed through the information on their website and looked through some manuals but I didn't find anything on if it has a trigger output that could be hooked up to an external oscilloscope, do you know if it has that feature? /Martin -- You received this message because you are

Re: [neonixie-l] Re: Lighting up a DM160

Here's some more information on the DM160: http://www.r-type.org/exhib/aai0056.htm where you can see them being used in mainframe computers. We used a small testplug with a row of DM160 to push over the pins on the backplane on mainframe computers (don't remember if it was a Siemens or an IBM

[neonixie-l] Re: 6844A saga

Raising the anode voltage has always cleared the problem with the wires glowing for me. /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to

Re: [neonixie-l] Radioactive Nixies - Study

So how should I do to properly test all old instruments and tubes that I buy to check that they are safe, free from harmful radiation, is there any reliable equipment that don't cost an arm and a leg that I can use at home? I'm not particularly afraid but if there is an easy way to check then

[neonixie-l] Re: Taylor Edge Nixie Clock Kit

What happens if you set all three time switches and the halt/set switch in the SET position and then push the INCR button, do all counters advance one step each so that they count properly or do soem still count in the strange sequence? I would also make sure that VCC and GND are present on

[neonixie-l] Re: Why Mercury?

Here's one patent: http://google.ch/patents/US3944869 that says: "For many years, display devices such as NIXIE tubes have used mercury vapor along with the normal inert gas content to minimize cathode sputtering" There are more patents on the use of Mercury and Nixies that tells the same

[neonixie-l] Re: Some guy offering Rodan CD47 tubes

Maybe he is reading this thread and also getting comments from buyers to read it to get the price right? /Martin On Monday, 27 February 2017 13:49:40 UTC+1, ten kowal wrote: > > haha, it seems he realised how ridiculous his price is. 4 days ago he > wanted 1 for 4, which was twice more per

[neonixie-l] Re: In18 displaying cathode poisoning after 1000hrs or less.

In tubes, filled with Neon and other gases, with shiny copper pieces you can see that these copper pieces become darker and darker (black) the more air that has entered the tube, the tube can work just as designed for a long time while this process is ongoing but it will sooner or later give

[neonixie-l] Re: Strange display C63.396.208(I-208) - any info on this?

Here you can find some information: http://www.155la3.ru/electroluminescent.htm You should current limit them when using them as they will otherwise easily have flash-overs, if driven the wrong way, destroying the segments and the tiny wires connecting the elements inside the case. /Martin

Re: [neonixie-l] 1pps signal for old Nixie Clocks?

to activate the one pps: > > Wire.beginTransmission(0x68); > Wire.write((byte)0x0E); > Wire.write((byte)0x00); // control byte to set and enable 1 Hz SQW > output _ > Wire.endTransmission(); / > > > Paolo > > Il 29/Gen/2017 20:36, "Dekatron42&quo

[neonixie-l] 1pps signal for old Nixie Clocks?

Hi, I just bought an old Nixie clock design by "Karlsson" that uses a 1pps signal generator from what looks like a standard electronic clock with hands, I also found this "inner look" at another Karlsson clock that confirms what my clock contains more or less :

[neonixie-l] Re: How ICs are made - the inside track...

I just finished reading the article "The Molten Tin Solution" by Rachel Courtland in IEE Spectrum which explains some of the EUV chip-printing technology so this description was a nice view from another side of the complexities of producing ic's, especially as they talked about the problem

Re: [neonixie-l] Re: black box from Czech Republic

Yes he does make some profit: http://www.daliborfarny.com/2017/01/10/2016-year-in-review/ /Martin On Friday, 20 January 2017 21:33:26 UTC+1, gregebert wrote: > > 1300 of them..truly amazing. I hope Dalibor is finally making a profit > on his hard work. > > In case any of you missed it,

[neonixie-l] Re: Dekatron Z562S help

Have you had a look here: https://threeneurons.wordpress.com/dekatron-stuff/ ? A lot of stuff on dekatrons is explained and showed with working circuits there. /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this

[neonixie-l] Re: Troubleshooting a mux'd clock

You might already have tried the ideas below, or already know about them but I mention them anyway as I have come across those faults. You should make sure that you load the driver properly, otherwise it might not show its fault as small leakage currents will be present and show you the wrong

Re: [neonixie-l] Re: RTC chips that behave nicely with crystals

Have you read Application note 58. "Crystal Considerations with Maxim Real-Time Clocks (RTCs)" for the RTCs? I don't know if it will help you but it mentions a lot of things to think about when using these RTCs with built in load capacitors, it mentions layout designs and other things related

[neonixie-l] Re: Strange CRT display graticule

It comes from a TDMS, Telegraph Distortion Measuring Set : http://www.albinarrate.com/index.php?option=com_content=article=22:vintage=35:tdms There were different models all having the same graticule but somewhat differemt designs and used a few types of CRTs. /Martin On Saturday, 29

[neonixie-l] Re: Valvo datasheet "Valvo Brief" from 26.04.1970 with DDM14 circuit - does anyone here have this?

Hi, Yes, I found a small amount of information on a few German forums but not the original datasheet/book. Yesterday I tried once more to contact the gentleman who wrote the original piece at Radiomuseum.org and this time he answered me that all of the text was written there, that there were

[neonixie-l] Valvo datasheet "Valvo Brief" from 26.04.1970 with DDM14 circuit - does anyone here have this?

Hi, I've been trying to get hold of the schematic diagram for the Valvo DDM14 driver for the ZM1200 Pandicon for some time now, even tried to get in contact with the gentleman who wrote about it here but haven't heard anything: http://www.radiomuseum.org/tubes/tube_zm1200.html Does anyone

[neonixie-l] Where do I find companies that can laser cut perspex/wood and which software should I use?

Hi all, I need help in finding companies that can laser cut perspex and wood and also help with what software I should use to make the drawings that these companies can use. To begin with I will make simple pieces that fit together like jigsaw pieces or like dovetail fitting. I've used

[neonixie-l] Re: OT: Rant - eBay Sucks ! Shipping Calculator

I think they must open the package to check its contents when they handle the Customs tax - I would open every package anyway so that I was sure that people didn't shipp illegal stuff. /Martin On Tuesday, 20 September 2016 21:54:16 UTC+2, Alex wrote: > > I did not know they actually opened

Re: [neonixie-l] I agree with the Rant - eBay Sucks ! Shipping Calculator

I've had a lot of problems with GSP over the last few years, similar what other people describe here but it gets nasty when they loose objects in the shipment along the way, not the whole shipment but probably when someone forgets to put all things back when they open the package for inspection

Re: [neonixie-l] Re: Nixie bench supply

Thank you for the description, now I understand how it works. Have you considered using depletion mode mosfets as current regulators? The IXYS (Microchip) IXCY10M45S (450V) or IXCY10M90S (900V) are sometimes used as either a pass element before a LDO regulator or as a CCS in audio amplifier

Re: [neonixie-l] Re: Nixie bench supply

Can you include larger schematics files, I can't read all of the text in the ones you already put here. I can't see how the constant current design is working, probably because I can't see the text in the schematic or perhaps because I can't see all components since I couldn't find the wiring

Re: [neonixie-l] Re: Nixie bench supply

I think it would be a lot better if you kept the questions and answers here on this forum, so please reconsider. /Martin On Monday, 5 September 2016 06:55:26 UTC+2, gregebert wrote: > > Thanks for all who have shown interest in this project. All of the > available boards have sold via Ebay

[neonixie-l] Re: Tube Hobby woes

Some time ago John Taylor (Tayloredge) converted a wall wart into a Nixie PSU and showed the result here on the forum, after that I started to experiment with other small switching power supplies. In the answers to my questions John mentioned better rectifier diodes and also that he used two

[neonixie-l] Re: Nixie bench supply

Can you publish the schematic for your power supply here? /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To

Re: [neonixie-l] Re: b7971 segment current

I ran across similar capacitor problem when using surface mount tantalum capacitors and MLCC capacitors, without the proper working voltage across them they behave poorly. I had to read a lot of design notes and datasheets to realise that they did not fit my design, MLCC capacitors has to be

Re: [neonixie-l] Original evaluation PCB for the Burroughs BG12205-2 bar graph displays?

Thanks Jon! /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to

[neonixie-l] Re: Dekatron Experiments

Nice! Could it be that you have a timing issue with the guides not being totally "off" when you do the reset? Or that the reset does not load the cathode enough so that the glow steps to a lower potential, being K9? You can also check what happens if you exchange the guides, then it should

[neonixie-l] Original evaluation PCB for the Burroughs BG12205-2 bar graph displays?

Hi, Has anyone seen the original evaluation PCB for the Burroughs BG12205-2 bar graph displays? I have the evaluation/design example circuit diagrams from different datasheets but I would like to know if anyone has the original PCB before I start to draw one myself. I am not interested in

[neonixie-l] Re: Group document repository...

A secondary place would also be good, I can recommend Frank Philipse with his website, he is hosting a lot of documents that I have sent him. /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop

Re: [neonixie-l] Playing with E1T-tubes & restoring them

Thank you so much for those documents DaveB! You can always ask Frank Philipse if he wants to host them, send him an email and ask: http://www.tubedata.info/fpm.html /Martin On Monday, 8 August 2016 07:41:01 UTC+2, Dave Brown wrote: > > Scanning all done. Its actually two separate documents,

[neonixie-l] Re: XC24...

The fiddler looks really sad! /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an

[neonixie-l] Re: XC24...

That's strange, I've built a few circuits from old magazines where the XC18s were used in just that way and those circuits never failed me. The only thing I can think of that I did that you might not have done is that I aged my XC18s so that I knew that they were striking and working within

[neonixie-l] Re: XC24...

The XC24 have two trigger electrodes, otherwise it's identical to the XC18 - you can wire two XC18s back to back with anodes and cathodes together to get the same function. I do have these in bulk packing but I've never seen the box for individual ones, it is really nice! /Martin On Friday, 5

[neonixie-l] Re: Rare Nimo Tubes

A set of six just sold from the same seller: http://www.ebay.co.uk/itm/IEE-nimo-6000-31--10-Electron-Gun-Display-Tube-CRT-Nixie-LOT-OF-6-NOS-RARE-/282111471567?hash=item41af276fcf:g:5eUAAOSwIgNXlN-c /Martin On Thursday, 4 August 2016 12:00:34 UTC+2, Paul Parry wrote: > > Just spotted these

[neonixie-l] Re: Playing with E1T-tubes & restoring them

Those modules are probably just using the standard design for the E1T which you can find in any E1T datasheet. I have seen a lot of those modules and they have all been standard designs - there are a however a very few 100 kHz and 1 MHz designs that use a few more vacuum diodes and also one or

Re: [neonixie-l] Re: Take a look at this....

This fact was very interesting! I bought a few different Neodymium magnets from Ebay when I experimented with the RYG10 as I didn't have a proper magnet, cheap ones from the Far East and they all became less magnetic in just a short time (some months). The Ferrite magnets I bought are still

[neonixie-l] Re: Take a look at this....

Can anyone who has knowledge about magnets say what will happen to them over time, especially when they are near electromagnets transferring power, will they weaken and become unstable so the design will tilt or fall, and how long will it take to weaken the magnets? /Martin -- You received

[neonixie-l] Re: Take a look at this....

I wonder how well it goes with cat owners, maybe you should use a glass dome to cover it so your cat doesn't start to play with it /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving

[neonixie-l] NE-68 and NE-81 Neon bulbs?

Hi All, I have been trying to buy a bunch of NE-68 and NE-81 Neon bulbs to repair some Burroughs counting modules that I have where the bulbs have cracked and the gas has escaped, the cracks have happened since the modules had been stored poorly so the pins corroded. I haven't found any place

[neonixie-l] Re: Pandicon ZM1200 Questions

I found this design yesterday: http://www.radiomuseum.org/forum/zm1206_zm1206.html where they use Solid State Relays to drive the anodes and cathodes, easy and simple. They also show just three trim potentiometers for the different bias voltages and a set of diodes to apply those bias voltages

Re: [neonixie-l] Anyone selling IEL-0-IV or the more rare IEL-0-VI?

I didn't finish a clock or something like that, I just made sure that I could drive them properly and then put them away for future projects. I either fed a true sine wave signal to the transformer from an oscillator or used a square wave with a transistor driving the transformer and made sure

Re: [neonixie-l] Anyone selling IEL-0-IV or the more rare IEL-0-VI?

Here is a link to a Russian website on these electroluminescent displays: http://www.155la3.ru/electroluminescent.htm a bit down you can see a few different ways to drive these. The Russians used a lot of small transformers to drive these, I used small 24V/230V 0.6VA transformers when I

[neonixie-l] Re: @Dekatron42: Asking for data/pinning of RYG10 Trochotron

B/s1600/1.JPG> /Martin On Sunday, 19 June 2016 22:39:15 UTC+2, Mein Name wrote: > > > Hallo Dekatron42 > > About 2 years ago you posted about your success to get a RYG10 Trochotron > running and included a link to a Youtube video. > > Yesterday I found by chance suc

Re: [neonixie-l] Re: Nixie Newbie

Does it change if you use just one or both of the anodes? Does it change if you use a cathode resistor for the "1" digit? In the few Russian circuits that I have seen they use at least 200V supply voltage, usually 250V, and either direct drive with a transistor in each of the cathode circuit

[neonixie-l] Re: GN-4 family : how do you drive the "hidden" points?

In some nixie tubes like the LC-513 there is a dot to the left of the digits, see for instance here: http://www.tube-tester.com/sites/nixie/data/lc-513.htm , the LC-513A doesn't have this dot. However on a few of the LC-513 and LC-513A that I have the dot can light up on the right hand side

[neonixie-l] Re: Unknown Russian Nixie tubes

A long time ago I was told by a Russian person (don't remember his name and can't find any emails, sorry, Outlook has crashed a few times since then) that the tube named IN-19B was in fact an IN-26 Polyatron with a purple shine. But comparing the old picture I have to the pictures in the

[neonixie-l] Mullard "Electronic Counting Circuits/Techniques/Devices" can be found at Frank Philipses website.

Hi All, The book Mullard "Electronic Counting Circuits/Techniques/Devices" can be found at Frank Philipses website now. You find it at the end of this page: https://frank.pocnet.net/other/Mullard/index.html /Martin -- You received this message because you are subscribed to the Google Groups

Re: [neonixie-l] 2AP1 CRT help

If they gained access to your computer you should really try to get some help from someone who knows how to revert that! Did they ask you to enable access to your computer or did they have access without you changing anything? If you changed something like remote access or if you installed a

[neonixie-l] Re: The Russians are correct! Early A-201 Polyatron prototype is shining blue!

How much of the pins are glowing on your dekatrons? It looks like just the top portion is glowing on the first cathode in the photo. If only a small portion is glowing that will affect the wear of the pin. Also, what current are the cathodes run at? If a dekatron has been in storage for a long

[neonixie-l] Re: The Russians are correct! Early A-201 Polyatron prototype is shining blue!

wrote: > > The cathode has been eaten away. It is now shorter than the other > cathodes. The glow is about the same. I'll take photos tomorrow, the clock > is at work. > > On Saturday, April 30, 2016 at 7:36:57 AM UTC-4, Dekatron42 wrote: >> >> When you say "th

[neonixie-l] Re: The Russians are correct! Early A-201 Polyatron prototype is shining blue!

. I'm hoping > that the reset-to-zero circuit will still work when driving five cathodes > instead of only one, and that the glow will move to one random "zero" > cathode instead of all five. I wouldn't have had to worry about this if I'd > used a polytron. > > On Th

[neonixie-l] Re: The Russians are correct! Early A-201 Polyatron prototype is shining blue!

Yes, probably, Kaganov - Каганов И.Л. Ионные приборы (Ionic Devices), says that early Polyatrons used 90% Argon and 10% Hydrogen. /Martin On Thursday, 28 April 2016 21:06:48 UTC+2, gregebert wrote: > > Argon ? If so, I wonder if the decision was based it's abundance vs. Neon. > -- You

[neonixie-l] Re: The Russians are correct! Early A-201 Polyatron prototype is shining blue!

/watch?v=lZQVZ4pPC4U /Martin On Thursday, 28 April 2016 18:20:00 UTC+2, Dekatron42 wrote: > > Hi, > > I've just uploaded a very short movie showing my first tries at running an > early prototype of the A-201 Polyatron, and it shines a clear blue, just as > the Russians h

[neonixie-l] Re: Fallout 4 DLC "Wasteland Workshop" will include "nixie tube lighting"!

There were actually Nixies, only one model though. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To

[neonixie-l] Re: OT: US Customs Service - Delays

We have had the same situation here in Sweden for the last three months, most foreign packages from Russia, China and even the US get stuck in customs but pass without problem after a month or so, but strangely some packages fly through customs in under a weeks time even though they come from

[neonixie-l] Re: Polarity and current limiting resistor for INS-1 Nixie Lamps

Using Abbyy Finereader and Google Translate it says: -- electrode output 1 - output of small cylinder : anode 2 - output of large cylinder : cathode -- to the right of the symbol. /Martin -- You received this message because you are subscribed to the Google Groups

[neonixie-l] Fallout 4 DLC "Wasteland Workshop" will include "nixie tube lighting"!

I want it now! ;) I just hope they have made it look right and that they know what they are talking about. The Gauss rifle at least have good looking Nixies. /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this

[neonixie-l] Re: Early ZM1000 nixie failure

I have seen this once on a ZM1042 where the anode screen had come loose from the pin at the back, it might be the same with your tube. If you can get it back you could check it to see if the same has happened to it. /Martin On Saturday, 26 March 2016 08:29:14 UTC+1, franetic wrote: > > Hi all,

[neonixie-l] Re: Electroluminescent displays (I-195)

Unfortunately I don't have any datasheets for these but I bought a few probably from the same seller but I can't get any of them to shine as bright as they do in his photos. I've driven them at the voltages, frequencies and currents that the seller told me and also with a very similar setup

Re: [neonixie-l] Used or NOS?

I just remembered that they are used in the Leybold 55952 counter as voltage regulators for the Geiger-tube power supply, but I can't remember how they glowed even though I think they actually glowed as four distinct tubes inside the envelope. I restored one of those counters and passed it on

Re: [neonixie-l] Used or NOS?

TC+1, Dekatron42 wrote: > > As you say it looks like the tips are open, they certainly aren't melted > at the tip like the four separate ones. > > It would be interesting to see the result if the ZZ1030 was checked with a > plasma lamp, that would show if there is neon gas i

Re: [neonixie-l] Used or NOS?

As you say it looks like the tips are open, they certainly aren't melted at the tip like the four separate ones. It would be interesting to see the result if the ZZ1030 was checked with a plasma lamp, that would show if there is neon gas in the envelope or just in each voltage regulator tube.

Re: [neonixie-l] Russian EG-5 (ЕГ-5) prototype dekatron manufactured in 1959 up and running.

I kindly ask people for help in finding rare tubes and I Google pictures a lot, plus I Google words I find in patents in foreign languages. Google and Ebay are my best friends! /Martin On Wednesday, 16 March 2016 04:22:56 UTC+1, marcin wrote: > > Great find! Looks like long-lost child of OG-3

[neonixie-l] Russian EG-5 (ЕГ-5) prototype dekatron manufactured in 1959 up and running.

Hi, I got hold of this nice Russian EG-5 (ЕГ-5) prototype dekatron and after having peered down the glass envelope and hooked it up as a normal GC10B it started to run without a hitch, I made a short video: https://www.youtube.com/watch?v=WNNQio0N1FQ Unfortunately my new LED lamps flicker and

Re: [neonixie-l] Used or NOS?

Dekatrons use a getter that is flashed and they contain similar gas mixtures compared with Nixies, as I understand it the getter is there to absorb impurities from the materials used whereas the mercury is there to extend the life of the Nixie as it reduces the sputtering. /Martin On Tuesday,

[neonixie-l] Re: Used or NOS?

The mirroring can be Mercury drops or sometimes when a Nixie doesn't fire up correctly the wires connecting the number glows instead of the number itself and the deposit shows on the glass close to the wires. Most tubes were switched on for some time in the factory so the bad ones could be

[neonixie-l] Re: Square Nixie watch website is live

Nice! -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to

Re: [neonixie-l] Re: Is this a coincidence or what?

I've heard of a lot of explanations for the name Nixie, like the ones above, but I have never seen it written in any Burroughs document and since it is quite common to use ordinary words and fit a project or product name to that word I thought it might be possible that people working at

[neonixie-l] Is this a coincidence or what?

Could this book have something to do with the naming of Nixies? https://www.etsy.com/listing/85929141/vintage-childrens-dog-book-the-four The title is: "Pixie, Dixie, Trixie, and Nixie" and it is written by Dorothy and Marguerite Bryan and supposedly published in 1950. Burroughs made a Pixie

[neonixie-l] Re: Counterfeit RTC modules

I agree on the battery, I bought some similar units a few years ago which were incorrectly designed so that they were trying to charge non-chargeable batteries! I also had problems with the EEPROMs and about everything else on these and other modules. The modules were bought from a usually

[neonixie-l] Re: threeneuron's Dekatron clock

The OG-8 dekatron is not hard to drive, just use the circuit diagram in the datasheet and the other parameters found in the datasheet and they will step just fine. However some of the OG-8 dekatrons that are for sale are partially outgassed so they either won't step properly or sometimes at

[neonixie-l] Re: OT: Darkened NOS(?) RCA 6AH6 tubes?

I don't know anything about the specific tubes that you ask about but I know that the EF91 has a blueish looking band, you can read more about it here: http://www.r-type.org/addtext/add102.htm /Martin On Saturday, 16 January 2016 13:04:33 UTC+1, marta_kson wrote: > > As this group has a deep

[neonixie-l] Re: All digits display pictures of 42 kinds of different Nixie Tubes.

Very nice photos! Can you place the high resolution photos in a zip-file for download? /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to

Re: [neonixie-l] Re: New Nixie watch with custom made tube - close to prototype

. >> Thank for your comments, guys! >> >> Dalibor and I are working on our project separately, but it happened that >> we started at the same time. Dalibor went for making big tubes while I >> focused on minimizing the tube size so it could be suitable for a watch. &g

[neonixie-l] Re: Rant: Shipping to Germany

I'm not sure if my problems have any relation to yours, but since the end of October and at least up until today there have been a lot of problems with shipping here in Europe. I first found that out when six packages that I shipped with DHL first disappeared and then turned up after four weeks

[neonixie-l] Re: Sale IN-18

Three thoughts: 1. Is it possible to blow these small connections in after production with a high current pulse? 2. Many Russian displays where used as backgrounds for a text stencil, could this be the case for these? 3. Were they meant to be used in a larger composite display side by side

[neonixie-l] Re: IV-17 tube filament voltage difference (DC drive)

I am glad it works better now! Have a look at paragraph 6.2 in the Noritake link, there they use a zener diode to bias the center tap, you can usually just use a string of ordinary diodes to try out what bias voltage that you need for your design to have a proper cut-off voltage. Then when

[neonixie-l] Re: IV-17 tube filament voltage difference (DC drive)

First of all I think you should read this guide from Noritake on VFDs : https://www.noritake-elec.com/display/vfd_operation.html it explains why an AC filament is best to use. Then I think that you should see if you can do as "gregebert" says in lifting the heater chain from your current

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

Nice! How would three or four STTH1R06 HV rectifiers work instead of two of the 800V or 1KV versions, just as well or would other problems arise? /Martin On Monday, 9 November 2015 00:48:52 UTC+1, taylorjpt wrote: > > Load testing is done and the transient performance is right on target >

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

Thank you for the answer! I realise I need better probes for my scope to make the measurement you did in the second scope picture, I only have standard probes that aren't rated for those pulse voltages. Where did you hook up the probe to show that trace? /Martin On Monday, 9 November 2015

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

Looks nice! I'm still waiting for some spools of transformer tape, 3M 44 margin tape and also 3M 56 polyester tape, I received a bunch of STTH1R06 diodes (the through hole variant) so I can continue experimenting soon. /Martin On Friday, 6 November 2015 00:01:40 UTC+1, taylorjpt wrote: > >

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

Would a TranZorb or something similar on the LV output be able to cope with a short from the HV output? /Martin On Sunday, 1 November 2015 12:09:13 UTC+1, taylorjpt wrote: > > Shorting the HV output to the 9V output will destroy the 9V output > circuits: Rectifier, reference, opto coupler etc

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

Thanks for the answer! Nice with the keyed contact. /Martin On Sunday, 1 November 2015 12:09:13 UTC+1, taylorjpt wrote: > > Shorting the HV output to the 9V output will destroy the 9V output > circuits: Rectifier, reference, opto coupler etc as well as probably the > user circuit (Unless it

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

What happens if you short the HV output to the +9V output or to ground? Will both outputs survive and how will it regulate during the short and will it recover when the short is removed? /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group.

[neonixie-l] Re: How much voltage do cathode transistors need to be able to handle?

Ronald Dekker has a lot of good things to say about driving Nixies with a lot of facts: http://www.dos4ever.com/QandA/QandA.html He also shows how to drive a Nixie from a CMOS 4017: http://www.dos4ever.com/ring/ring.html#HEF Do check the whole ring counter article he has written (which the

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

Thanks for pointing out the new model, unfortunately I can only find that one with Mouser but Mouser says: "Due to government regulations, Mouser is unable to sell this product in your country." , so I would still need your help in getting hold of the type with European (Swedish) prongs.

[neonixie-l] Re: "Giver Pill pins"

Hi, No, you don't need these pins, and in most tubes you should not connect them as they sometimes are connected to internal structures that should not be powered. These pins are only used during manufacture to release the mercury stored in the small glass tube that can be seen inside the

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

I decided to buy a few Mean Well switching power supplies the other day as I found them on sale for SEK 20kr each (some USD $2) to see if I could modify them - I decided to buy them because they were cheap and I could use them for other stuff if I couldn't rewind them. I have successfully

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

Can you supply them with the Swedish (European 2 pin version) plug too? I've tried to buy these since you started this thread but every reseller has told me these are obsolete, like it says in the link from Mouser here:

[neonixie-l] Re: Painting Nixies

Would it be possible for you to show an original painted Nixie and one painted with this paint when the digits are lit up? It would be nice to see how the original paint compares to this paint with the digits lit. /Martin -- You received this message because you are subscribed to the Google

Re: [neonixie-l] Super easy wall adapter mod: 9V plus 170V at 80mA

Have you tried the same process of rewinding the transformer on any of the small switching power supplies meant for driving LEDs, like the one shown in the picture below? The market is currently swamped with these power supplies and they are very cheap and modifying one or two in addition to

Re: [neonixie-l] Re: Linear power supplies for nixies

I do not know anything about this topic, that's why I asked. I was told by a friend that the Low Voltage Directive in the EN61010 standard was the right place to look for answers, so I did and found some details but I do not understand it all. I found this

[neonixie-l] Re: Linear power supplies for nixies

Can anyone direct me to a document that says that it is allowed to sell an electronic apparatus that uses a primary winding as a secondary winding - I spent a lot of time Googling this and I can't find anything. I am also concerned about safety and what an insurance company would have to say if

Re: [neonixie-l] Thoughts on building an ITS1-A clock from Mr. Nixie's kit

I haven't built this exact clock but when I used these tubes I used a piece of clear plastic which I drew both horizontal and vertical lines on that corresponded to the four rivets inside the tube as well as the segments and then used a piece of double sided tape on the front of each tube to

Re: [neonixie-l] Tayloredge 1363/1364 in series - what do I need to think about before connecting them?

I've tried to find that information but all of the links here on the forum that I've found regarding this are dead when I try them and John doesn't answer my emails so that is unfortunately a dead end for me. /Martin On Sunday, 30 August 2015 22:56:50 UTC+2, Tidak Ada wrote: > > Taylor is

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