Re: [neonixie-l] Re: Help with 12" monochrome CRT circuit TDA1175/TDA1180

Hello. On Sat, Apr 22, 2023 at 5:58 PM gregebert wrote: > I found this online (service manual for Ball Brothers video monitor). At > the end of the document is a schematic, and you can see the pinout numbers > (for the 10-pin card-edge connector) called-out on the schematic. For > example, pins

[neonixie-l] Help with 12" monochrome CRT circuit TDA1175/TDA1180

Hello. A friend gave me a 12" monochrome CRT with its circuits that was taken off an injection molding machine (most likely from the control console Sandretto Selec 90). As I haven't been able to find documentation I started reversing the circuit to understand the meaning of the 10 pins on the

Re: [neonixie-l] Single Digit Clock Designs

Hello Zachary. I am more confident with electronics rather than case design. But once you master the electronics side of Nixie circuits you get more time to think of the exterior. In November 2022 I came up with the single-digit clock in the attached picture. From zero to delivery to a teen

Re: [neonixie-l] Nixies in Stanley Kubrick's "A Clockwork Orange" (1971)

Hello. I have added the movie to the list of "Nixie in broadcast media" some neonixie-l members compiled few years ago: https://docs.google.com/spreadsheets/d/12flg9o8OFw3oAlLBToHjpNLt1VdUuMSRkMb-7SJ4xuA/edit?usp=sharing Please have a look and fill up the missing info on this movie based on

Re: [neonixie-l] Scope Clock - HF transformer dirving circuit and PCB layout evaluation

Hello. 2. Spacing for higher voltages. Again, look for online calculators/table > for creepage and clearance. There are various factors that affect spacing > including pollution levels. I always pick the most conservative rules I can > find. Spacing for 500V or less is pretty small, around 2mm. >

Re: [neonixie-l] Japanese homemade Nixie tubes

Hello. I'm reviving this thread since "yuna" (Yuna Digick) was at Tokyo Maker Faire last weekend (September 2022, https://makezine.jp/event/makers-mft2022/m0088/) showing her/his/their tubes. There is also an extensive photo collection of yuna work:

Re: [neonixie-l] Re: Stuck with a stuck dekatron

Thank you Mike for the Analog Guidance Computer hint. It seems someone has been documenting it/them online: that's a route to follow to locate a schematic diagram. And Martin's 439A datasheet is very helpful too. At least it is complete. I haven't made much progress, except that I even got the

Re: [neonixie-l] Re: Stuck with a stuck dekatron

On Wed, Feb 23, 2022 at 11:04 PM Jon wrote: Thanks to Martin, Eric and Jon for their answers. However, if I understand Paolo's post, he's using Mike Moorrees's circuit ( > https://threeneurons.files.wordpress.com/2011/09/we6167ckt.gif) which > leaves the auxiliary anode disconnected. When I ran

Re: [neonixie-l] Data Time nixie clock

Hi. According to this page https://en.wikipedia.org/wiki/British_Summer_Time , between "27 October 1968 and 31 October 1971" UK was on GMT+1. So, depending on the year the clock was made, it could be correct indeed! The same analysis should be done for Portugal, that is currently on the same

Re: [neonixie-l] Philips DP7-32 cathodic ray tube

nderwerp:* Re: [neonixie-l] Philips DP7-32 cathodic ray tube > > > > > > Must have been nice to get back out there. > > > > Ian > > On Monday, 21 June 2021, 17:40:06 BST, Paolo Cravero < > paolo.crav...@gmail.com> wrote: > > > > > >

Re: [neonixie-l] Re: CRT clock kit instructions

Hello. On Sat, May 22, 2021 at 9:22 AM 'Ian Vine' via neonixie-l < neonixie-l@googlegroups.com> wrote: > Any chance the documentation could be shared to all? > > Thanks Ian > Aliexpress proposed me the kit today even if it is sold out. At the bottom of the description (https://bit.ly/3yNgelV)

Re: [neonixie-l] Re: CRT clock kit instructions

Hello. My boards take about 10W input, that is ~800mA at 13V. Without a CRT connected the current drops to ~470mA. A word of caution to current builders. Q6, Q9, Q12 and Q15 (all MPSA44) on the PSU board get pretty hot. I measure 60°C on the top of their plastic case! Even without a CRT

Re: [neonixie-l] Re: CRT clock kit instructions

John, pictures of my build are here: https://ik1zyw.blogspot.com/2020/10/kit-oscilloscope-clock-8sj31j-review-3.html The code on the HV board is the same. I think I reversed a 79Lxx, but the smell of it burning was too obvious and I cannot tell what the effect was on the CRT. I do get

Re: [neonixie-l] Re: CRT clock kit instructions

Hello. Is the filament glowing visibly after one minute of power on? Is the filament fuse still good? Can you confirm current flows there? If all above check positive, in dark room do you see the green shade of the beam out of the screen? My kit draws less than 2A, I am quite sure. 650 mA go

Re: [neonixie-l] Interesting kit...

Hello. Freeform electronics are a very fine form of art. Reproducing what is shown in the pictures requires a lot of practice, starting with getting the wires straight and of proper length. A worldwide reference for freeform electronics is Mohit Bhoite, amongst few others. Check out his social

Re: [neonixie-l] Nixie 7977

Not only you need the 10k resistor, but you need to ground a cathode. In ASCII drawing: +HV - 10k -[Anode || Desired Cathode] GND In your picture it looks reversed, whch is good since you didn't put the resistor. Paolo On Tue, Mar 2, 2021 at 4:10 PM Nicholas Stock wrote: >

Re: [neonixie-l] CRT clock kit instructions

> It would be interesting to see the schematic for this kit to ascertain if > it would make a good starting point for a homebrew design I guess? Use > their HV part but do your own micro board? > The HV part uses a transformer of unknown specifications. All the rest is common design. Also the

Re: [neonixie-l] CRT clock kit instructions

Hi. I bought that kit and have the docs that were sent on request. That means the diagram, adjustment procedure, firmware canvas. Will send them privately later since they are on another computer. I documented for myself the kit here

Re: [neonixie-l] Re: IN-16 without Neon but with Argon

t atmospheric air has leaked into the tube, thus increasing the > pressure inside. This would also explain why the voltage needs to be that > high. And ionized atmospheric air does indeed light up purple. > onsdag den 9. december 2020 kl. 21.38.54 UTC+1 skrev Paolo Cravero: > >> He

[neonixie-l] IN-16 without Neon but with Argon

Hello. As I said in the IV-6 thread, I bought some apparently dead IN-16 that react to a Neon tester (HVAC) with a violet/lavender glow. Since there is gas, it will light up one way or another! This is the promising result with 632 Vdc at about 9 mA: https://youtu.be/NfKj6_Kf8DE (color does not

Re: [neonixie-l] IV-6 background variations

On Mon, Dec 7, 2020 at 6:52 PM Nicholas Stock wrote: > I have a lot of IV22 VFDs and IV4/17's. The differences in the backgrounds > can be quite varied from what I've seen.I don't think they were > particularly bothered by it for their intended use case (behind a filter)? > Indeed Nick. Or

Re: [neonixie-l] Digital scale from 1971, with nixies of course

Il Mer 25 Nov 2020, 00:05 Yohan Park ha scritto: > > Does it have Nixies on the other side as well? > I think so, that's why the tube count is close to 30. Unfortunately I have not been able to get a picture of the customer's side but it can be confirmed with other rare pics online. Paolo >

[neonixie-l] Digital scale from 1971, with nixies of course

Hello. I didn't know they existed and apparently there were very few models made worldwide: a digital scale with Nixies. At least according to this discussion < https://www.tubeclockdb.com/forum/6-related-technology/2700-nixie-tube-based-weight-scales> from almost 9 years ago. There is one

Re: [neonixie-l] Elfin Rodan MG-17G

Hello Yohan (or Park?). Just came across 7 new MG-17G tubes which I never knew existed. Has anyone > ever done a clock with these tubes? > I "found" them inside a Inno-hit K80W battery operated portable calculator, of which there are few similar models from the same year(s). In two tubes the top

Re: [neonixie-l] Nixie tubes in TV ADVERT.

On Tue, Nov 10, 2020 at 9:17 AM Paul Parry wrote: > I've done about 5 episodes now of Money for Nothing on the BBC where I > upcycle random old things into Nixie clocks, don't know if that counts? > Probably on youtube somewhere :) That's interesting Paul. Many BBC programmes are restricted to

Re: [neonixie-l] Nixie tubes in TV ADVERT.

Hello. A few years ago I started documenting the appearance of Nixies in broadcast media, and everyone here was invited to contribute. Please feel free to add recent discoveries and new appearances at:

Re: [neonixie-l] Calculator controlled by Arduino/ESP8266/etc to display Time or other info.

On Sat, Oct 31, 2020 at 5:02 AM Michail Wilson wrote: Hello. > > You used a CD4051 where I was thinking of a 74595 shift register since it > has tri-state (not knowing yet if that is required) or PCF8574. > > I spent nearly an hour searching your blog. E, it would be great if > you had a

Re: [neonixie-l] Calculator controlled by Arduino/ESP8266/etc to display Time or other info.

Done :) I have documented some parts on my blog http://ik1zyw.blogspot.com/2016/09/olivetti-logos-262-pd-desk-calculator.html . Navigate to more recent posts for the rest of the story. After the Olivetti I tried tracing keyboard connections and voltages on another calculator with Panaplex (maybe

Re: [neonixie-l] Re: A huge 7 Segment display made out of 23 IN-28 tubes? Wack.

Hi. The PS Paul and I have goes to 500V but I've found some that goto 300 >> which seems perfect for this with 4 sets of outputs! >> >> >> > Maybe it is not what Bill meant, but electrophoresis power supplies come in ranges up to 300Vdc (minimum) and few dangerously hundred mA. Add a current

Re: [neonixie-l] What is this HV gadget?

On Mon, Jun 29, 2020 at 9:29 PM Mac Doktor wrote: > > On Jun 28, 2020, at 9:30 PM, alb.001 alb.001 wrote: > > just search on eBay for portable neon tester and you find the same item > for around $14 > > > I bought one from a seller in the US (100% positive feedback) for $15.80, > free

Re: [neonixie-l] Power supply 300Vdc / 400 mA

On Tue, Apr 21, 2020 at 10:49 PM gregebert wrote: Please be VERY careful with this supply; one mistake and you could kill > yourself. If you put a 5K resistor in series with the output, it will limit > the max current to less than 60mA which shouldn't be enough to kill you, > but will be a nasty

Re: [neonixie-l] Power supply 300Vdc / 400 mA

Il Mar 21 Apr 2020, 21:30 jb-electronics ha scritto: > Thanks for sharing! Does it have built-in current limiting? 400mA is quite > deadly at these voltages... > According to the manual it shuts down if it senses a change in load resistance. I haven't tried it on my unit and haven't found

Re: [neonixie-l] Restore or scrap for parts?

Hi Martin, for fun & learning I have converted a calculator with VFD display into a clock by simulating keypresses with a microcontroller. I had to figure out the keypad wiring and use two analog multiplexers back-to-back to "press" keys. So the uC "dials in" the time. In some visualizations it

Re: [neonixie-l] SCM Marchant 414 schematic diagrams anyone?

Thank you Martin for the detailed report! I wonder how many of those machines are still around, just in case a fully working calculator can be put together from parts. But probably the display is the toughest component in there! Maybe the damage was caused by a lightning strike, at least I

Re: [neonixie-l] SCM Marchant 414 schematic diagrams anyone?

Hello Martin. No, I don't have the diagram. I have seen that calculator for sale and I was tempted to get it ... almost just to try to fix the power supply! At least I think it is the same machine. Would you share your findings, if/when you get it back in working state? I have a Casio CL-200 with

Re: [neonixie-l] Presented for your consideration...The BRS Clock

Outstanding Bill! And it will be programmed in Assembly! Are you using some tricks to improve the reliability of "reading" AC line? Either HW or SW. In Europe AC time is currently running 32 seconds late since the beginning of the year. It will catch up, as it did in 2018 when the grid had "lost"

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

On Fri, May 10, 2019 at 12:23 PM Paul Andrews wrote: > EUR? How vintage is it? > It has been relabeled on the front, but not in the back where is spells "German Mark". Curiously it has probably been in service after year 2002. Paolo -- You received this message because you are subscribed to

Re: [neonixie-l] Interesting tubes in eBay 7 segment nixies MG-17G

On Tue, Apr 16, 2019 at 1:29 PM Bill Notfaded wrote: > I hope someone else got the other ones here... Shortly after posting they > were gone. > Sadly not me (for MG-17G). Exactly one year ago I wrote here on neonixie about a transportable calculator using them that was showing a strange

[neonixie-l] OT: GPS week number rollover

Hello, I just read about the GPS week number rollover that will occur on April 6th, 2019. I had suffered it 1024 weeks ago, in August 1999, and forgotten about it since I don't use that GPS device anymore (it was a Garmin and got a firmware update). What is it all about? In short, the GPS signal

Re: [neonixie-l] Re: 32 kHz output of Maxim DS3231* RTC

On Mon, Feb 11, 2019 at 10:15 PM Nick wrote: > Yep. Genuine ones are very precise > > Where did you source yours from? > I got them from Aliexpress (2 pcs in 8/2016 then 3 pcs in 7/2017) and Banggood (3 pcs in 11/2018). I think the batch of 3 from Aliexpress that came without battery had

[neonixie-l] 32 kHz output of Maxim DS3231* RTC

Hello. One more thread on the subject of knock-off components... I use cheap RTC modules that use a DS3231 RTC chip (ZS-04). They are satisfactorily accurate and I haven't had surprises in their internal calendar. Today I measured the 32K output, which is supposed to be 32768 Hz, even though the

Re: [neonixie-l] NL5441A / B5441A needed to replace damaged tubes from home theft. Source?

Hello Robert. Your best bet could be to look for HP devices that mount 1970-0035 part: that's the HP code for NL5441A. Basically: look eBay/marketplaces for HP stuff with Nixies inside, then look up the service manual to see the parts list. I've got a few 1970-0035 that are inside an otherwise

[neonixie-l] Clock from 1971 by Richard Sapper

Hello everyone. While looking through a book about industrial design I found a nixie-based clock by the German designer Richard Sapper called Rocket built in 1971/72. I haven't found mention of it in neonixie-l archives or tubeclockdb.com. Scroll down the page to see it:

Re: [neonixie-l] Re: OT: Radioactive clock

> > Yes, none of them glow in the dark any more. Is there something I could > get that would light up under the bombardment? Like some glow-in-the-dark > paint? It would be fun to mess with this a little. > You could try with UV light, even the UV LED from a cheap "magic ink" toy pen could do.

Re: [neonixie-l] National NL5866SX Data

On Mon, Mar 12, 2018 at 8:23 PM, chuck richards wrote: Probably same pinout as all the rest of the NL-58xx series. > And probably the same pinout of the Burroughs B-58xx counterpart. And ZM12xx too. Larry, search for B-5866 and you'll get a pinout. Actually your part is described in this PDF:

Re: [neonixie-l] Re: Looking for MG-17G for calculator restoration

Hi. Hi - welcome to the group. > Thanks, but I've been around this list for a couple of years or more :) We might have never contributed to the same thread, though. > Are you sure this isn't a driver fault or an issue with contamination on > the PCB causing leakage? > Unfortunately it is not

[neonixie-l] [OT] AC frequency deviation in Europe

This info affects all clocks in Europe that derive their timebase from the 50 Hz AC frequency. Last week I noticed my 20+ y.o. Sony Digicube was runnng late: we had adjusted +4 minutes in a week. What bite my curiosity was that the 9 y.o. microwave oven clock had the same delay. Initially I

Re: [neonixie-l] Re: Questions from a Nixie newbie (raspberryPI project)

> It uses WiFiManager to set up the connection from the ESP to a router (I >> strongly recommend WiFiManager, Actually I use ASyncWifiManager because I >> use the ASyncTCP libraries). In doing so, it gets the user's location from >> the browser and then uses google's location APIs to get the

Re: [neonixie-l] Half-digit neon bulb 25/15 mm long

On Mon, Nov 13, 2017 at 5:08 PM, Nicholas Stock wrote: Not sure if this helps.. > > Chicago Miniature (now VCC) sells neons upto 1 inch bulb lengthI've > attached the datasheet. > U know what? I spotted them 4 hours ago while searching on Mouser catalogue! They do seem to be a fair

Re: [neonixie-l] Half-digit neon bulb 25/15 mm long

On Thu, Nov 9, 2017 at 7:01 PM, jb-electronics wrote: Here is a cheap one: > Thanks! Unfortunately I'm on the wrong side of the Atlantic and I've got plenty of those Nixies. I am waiting for the original manual of the instrument to arrive, then I will do proper troubleshooting on the signal

Re: [neonixie-l] Half-digit neon bulb 25/15 mm long

Thank you Nicholas for the links: without S they already cost more than I paid for my unit! And I have the curious power cord ;-) Meanwhile I asked for help on a forum and an innocent comment opened up new possibilities: Heathkit was linked to Schlumberger. In fact they sold the IM-102 DVM that

Re: [neonixie-l] Half-digit neon bulb 25/15 mm long

Hello. Thank you Tomasz and John for the links to neon substitutes. I've tried to light it up touching what remains of the broken leg but there was no life. I can tell the bulb was pressed into position and leads forcedly bent. Your replies inspire me to try troubleshooting a bit further. Voltage

[neonixie-l] Half-digit neon bulb 25/15 mm long

Fellow neonixier's, I have acquired a (Weston) Schlumberger 1240 3-1/2 digit multimeter made roughly in 1970/1971 mainly because of its compact design, suitable for a desktop numeric indicator (clock, thermometer). I had the feeling the half-digit was broken, and I was correct. I initially

Re: [neonixie-l] Power supply doubt

Hello Mario. Unless you have all parts at home for an ne555-based HV PSU, I would go for the kit: you can concentrate on the Nixies instead of debugging the PSU. You also get a guarantee on the current output. Don't worry: you will end up building the PSU sooner or later! And consider going back

Re: [neonixie-l] Another simple Passive IR clock control alternative...

That's interesting Robert, thank you for sharing. I am not so comfortable and fast with case building, so the less holes I have to drill, the better ;-) > > ... on one of my small VFD clocks it's difficult to modify the base board > to remove filament voltage and I'm tired of replacing failed

Re: [neonixie-l] Need help with a 230IK1 IC (nixie driver)

Hello ZY. Nice find those chips. I cannot help with a direct translation from Russian, but rather suggest a procedure that has helped me several times with the Russian datasheets: Google Translate on the smartphone (tested on Android). It lets you point at a text with the smartphone's camera, you

[neonixie-l] Useful status register in Maxim RTC chips: OSF

Hello everyone. While trying to figure out something new for a clock I'm building (including firmware), I spent some time reading all chapters of Maxim's DS3231 RTC chip datasheet. So I met a useful and often forgotten register (from ds3231 datasheet): *Control/Status Register (0Fh)* *Bit 7:

Re: [neonixie-l] Re: Raspberry PI controlled Nixie display

Hi. > > The real question now is: How long can a raspi run without crashing ? > As all *ni systems, a RasPI can run for years unless there is a hardware failure or overheating. I've been (silently ;) ) collecting uptimes at work and I've seen servers that haven't rebooted for 1600+ days

Re: [neonixie-l] Dekatrons in (their original) action

Thank you all for your responses and especially for sharing pictures. The oscilloscope in Dave's father lab looks much like my Tek 7000R (7603R). It is about as old as I am. And after seeing this picture I asked my parents if they had a picture of them taken while at work, but no. Then I

Re: [neonixie-l] Dekatrons for sale shortly

That's Great Roddy. Have you thought of a way to assign tubes to interested persons? FCFS basis? Name in the hat? Limited quantity per person? Paolo, not needing a dekatron (yet) J -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe

Re: [neonixie-l] arduino clock

Hello Tomas. I bought one of Ian's PCB+uC bundle because I wanted to build a 6-digit clock. I've built the circuit but not the whole clock yet (because in my case it's easier to sit the sockets in their final position and then do the wiring). Unless you get his full kit, be warned that the PCB

Re: [neonixie-l] Re: B5750 Nixie tubes for sale in a week or two...

Craig, I think 5750 and 5870 share the very same pinout, both physically and electrically, right? I have some NL5870/ZM1332 and their non-standard pin spacing "forced" me to get into the whole PCB design and production process (with KiCad). It turns out that I got more PCBs than Nixies (there was

Re: [neonixie-l] Video with nixies display in old secret place

Hello. I know that Tomorrowland has to be in the list, but I couldn't find a proper description for what should be listed and what shouldn't. I hope native English speakers can suggest a better definition of "no personal and commercial products", if we all agree on this. I thnk we're looking for

Re: [neonixie-l] Video with nixies display in old secret place

Regarding the list of movies and documentaries and clips featuring our beloved display technology, I would suggest to experiment a collaborative approach that I have successfully used to write a FAQ within a community similar to neonixie-l (worldwide, nobody knew each other before, just sharing a

Re: [neonixie-l] Re: Burroughs Self-Scan bare dsplay data

On Sat, Apr 15, 2017 at 8:00 PM, Dekatron42 wrote: > I uploaded a bunch of Burroughs documents and datasheets on the Self-Scan > displays in the forum TEMP folder, go have a look and download the file and > see if it will be of any help to you to get your display up and running. > > /Martin >

Re: [neonixie-l] Any info on this display please.

Hello. According to prpopto.com they were founded in 1989 and produce led displays. Their website search for 640 returns a spare for military applications, seven segment green (led). Easy to find out with a multimeter and will not be damaged in case it is a true panaplex. Have you already tried?

Re: [neonixie-l] Re: Burroughs Self-Scan bare dsplay data

> Have you seen this YouTube video? He reverse engineered the interface. > Don't know if there is any details on the pinout... > I did Jon. He has few videos about these (similar) units. But, lucky him, he got the display AND the driver logic, while I stand zil chances to find the associated

Re: [neonixie-l] Re: Radioactive Nixies - Study

On Tue, Mar 14, 2017 at 9:25 AM, newxito wrote: I begin to get really nervous, I think I'll buy a geiger counter > Measuring radioactivity is a science itself and to get meaningful data you need to have a good understanding of the phenomena (physics). For example, measuring emissions close to

Re: [neonixie-l] Radioactive Nixies - Study

Very interesting Jonathan. Any chance you could share a picture of the little warning sign and its position? I have very few of those Nixies and all tested negative, but my counter is quite insensitive. Thank you! Paolo -- You received this message because you are subscribed to the Google

Re: [neonixie-l] Rookie question about driving VFD filament

Hello Ten > Another idea is to connect 4 tubes in series. Of course it will make a > voltage gradient across tubes, but I plan to drive anodes at 50+V, so maybe > it won't be visible - does anybody have any experience with driving > filaments like that? > A step-down converter sounds good, but I

Re: [neonixie-l] Finished Nixie watch project

Awesome Craig! Thank you for sharing implementation details. Which tubes have you used? Paolo -- 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] 1pps signal for old Nixie Clocks?

Hi. I use the SQW output of Maxim RTC ICs (or clones...) in my clocks. It is 1 Hz/pps but I never measured its jitter: I read the time over the I2C bus periodically. I believe they are related so on the long run you get the same accuracy. And my cheap ds3231 modules are right on spot! My Arduino

Re: [neonixie-l] Re: Tube testing?

On Mon, Jan 23, 2017 at 8:47 PM, Paul Andrews wrote: Hi Paul. > Is your tester anything like this one > ? I would love > to make one, though that isn't what I was asking about! > I made one of those out of a

Re: [neonixie-l] KiCad footprint for ZM1130

it of getting used to, but it is definitely worth > sticking with. Make sure you are running a new build (the last stable one > is three years old). Once you are in to it, you won't want to go back. The > "push and shove" routing is really nice. > > > > > > On Tues

Re: [neonixie-l] KiCad footprint for ZM1130

Hello Hatse, have you found some interesting footprint for KiCad? It turns out that yesterday I installed KiCad and gave it a try. Board size limit of free Eagle was my main reason to try the switch over: given that I've not spent more than 10 hours on Eagle I have not wasted too much (sleep)

Re: [neonixie-l] KiCad footprint for ZM1130

Hello. Looks like the footprint was called sk116: have you tried looking for this code instead? Then you might search a library for an equivalent tube (as form factor). It worked with sk207 footprint for me. Paolo Il 27/Dic/2016 23:42, "Hatse Flats" ha scritto: > Hello,

[neonixie-l] Anode terminals on 5870

Hello. I am about to test and the do something with a bunch of 5870S tubes, both ITT and Siemens. >From the datasheet I see there are two anode terminals, but there is no indication of a reason. Were they made to simplify wiring? Or to make the anode more stable? Should they always be connected

Re: [neonixie-l] Electrostatic CRT Tester

Hello. > up. By the way, has anyone here ever built, or know of, a 'scope clock' > using either a small color CRT, or color television set?? Would make an > interesting project for someone here perhaps. Ira. > That's related to what I wanted to ask. I am about to replace the main home TV set, a

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

Hello. Far from being an expert and I never troubleshoot these circuits. Yet. Could I really have 2 bad tubes, that just happen to share a driver? Would > all the digits fail? > > I'm tempted to apply my neon sign tester to the tubes to see if they > ionize, but I'm a bit fearful about damaging

Re: [neonixie-l] "Firmware" must-have's / nice to have's

Hello Jonathan. First of all, thank you for sharing your work. While I grew up surrounded by RS232 cables, the serial setup sounds not practical and user friendly. In a couple of my firmwares I hardcoded DST changeovers for 100 years (eats up 100 bytes): you only need to reset the clock at a

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

Hello. (In the cheap Chinese modules) DS1307 are not accurate. In a DIY clock for my own personal use (bedside clock ;) ) I estimated the drift and corrected it in software, daily. That can be done since it runs 24/7. I had also found an algorithm that computes the total drift from the set

Re: [neonixie-l] Free Gerber Files - Nixie Clock

Hello Michael, thank you for sharing. I wonder if you already know which other nixie models you will design the board for? And one request: would it be possible to include in the zip file a jpg picture of the resulting board? I do hope to design and release my own board for B5092/Z560M and alike,

Re: [neonixie-l] Nixie Tube Calculator Clock w/Android Control

Eric that's an excellent work and very inspiring. I wonder how much time you spent on it! I have a desk calculator with VFD to repurpose as a clock. I will keep your result in mind when I will be reverse engineering the circuit, in case I can hook it up in a similar way you did. Not knowing how

[neonixie-l] Russian Nixies in real world use (video)

Hello. I just spotted a Nixie-based numeric indicator used in real-world, filmed probably in 1980's: https://youtu.be/KX9hHqByXzo?t=535 (at 8:55) Audio is in Russian, I've no idea what it is counting nor the tube model, but given the type of control room maybe nobody wanted to move to a more

Re: [neonixie-l] Talk about shipping issues to Europe!!!

For some reason the parcel could have been assigned a new code when crossing the border. It happened once to me on a pack coming from Germany as I recall. You may ask the buyer if he still has the envelope to check for other tracking code stickers. So you may find out where it spent all that

Re: [neonixie-l] Thought I'd share

Really nice. I think most people here know how to tackle the electronics needed to build something Nixie-based, but I for one lack a lot of knowledge in building an eye catching case. Would you (plural) share some words of wisdom on case forging for tube based clocks? Materials, cutting,

Re: [neonixie-l] PIxie tube 3D socket

Cool, John! > 4] Melt polymorph in cup of hot water and squidge it into the cylinder, > around the pins - squidge is a technical term (ignore it for now, you don't > need to know) > How much raw material is needed, say, for the socket in the picture you attached? Weight, I mean. I see it comes

Re: [neonixie-l] My Project: Nixie Tube Kitchen Timer

Nice one mr Ko! A timer is more dynamic than a clock with only 4 digits. I am on the "ugly keypad" side :) Have you considered a matrix of capacitive or magnetic switches? They would sit inside the case, so it would be even more waterproof and easier to clean. Unfortunately I have no idea how

Re: [neonixie-l] Re: Help with wiring for Gralex panel meter (with panaplex display)

On Wed, Feb 24, 2016 at 7:36 PM, Gralex Ind wrote: > > I'm sorry for inconveniences on the website. > We have all the technical information, parts and knowledge about Gralex > meters. > If you like contact directly the expert on this technology please use > info@gralex > ... > Johnny

Re: [neonixie-l] Help with wiring for Gralex panel meter (with panaplex display)

Thank you Dave and John. I triple checked my measurements, and ABCD of that transformer are in series. AD is the arithmetical sum of the three values I wrote earlier today. As well as AC is a sum and BD too. Weird, but since I have no diagram whatsoever of the General Microwave 475B power meter I

Re: [neonixie-l] Re: 3D printable models for Nixie sockets, especially IN-1

Excellent work indeed. I would be more in favor of laser cutting vs 3D printing because it seems to be faster on a "hobbistic-large" scale. On that subject, since I want to make an Eagle library for IV-3 and IV-6 VFS tubes, I found this online tool that builds the model for us:

Re: [neonixie-l] Help with wiring for Gralex panel meter (with panaplex display)

Thank you Dave for the excellent walkthrough procedure. It was used in a 220 VAC country and the input side of the transformer looks like it has 4 pins. Looks like... Anyway, the original device most probably was a General Microwave Power Meter 475B. The online picture from an auction looks

[neonixie-l] Help with wiring for Gralex panel meter (with panaplex display)

Hello. I have been given a Gralex Industries 475B-10 panel meter. It mounts a Beckman SP-352 panaplex 4 digit display and I would really like to light it up as-is since it even contains AC transformer. Any chance someone knows how to wire it up, and what kind of meter it is? It comes from a

Re: [neonixie-l] Flip Clock with WWVB

Very interesting experiment Michail. > It's probably going to be easier to just swap out the circuit board with > an Arduino and WWVB module than to modify with a WWVB (which would probably > still need a PIC or arduino to convert WWVB to JJY output). > > Anyway, not sure I can beat the price at

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

Thank you for sharing the excellent collection of Nixies. In case B5092 and B5094 are not in your collection I would be glad to take pictures of my specimens and share them with the world. Maybe others could contribute with pictures of their tubes? For such a project, it would help to see the

Re: [neonixie-l] Useful tool on eBay...

At last I am able to test Nixies, with a DIY solution. >From an old laptop (circa 2006) I rescued the CCFL driver circuit. Being able to power up the laptop really helped in tracing down connections. The switcher is so strong that the frequency counter can pick up its signal over the air. I

Re: [neonixie-l] Useful tool on eBay...

Two months have passed and I haven't yet gotten my hands on a laptop CFL driver. Still, I would like to have a battery operated "wireless" Nixie tester for flea markets like the Masonlite device. During my electronics shopping wanderings these circuits came out: 5 V to 400 kV booster:

Re: [neonixie-l] Re: Help with 3V to HVac converter

> The temperature problem is a good clue; there must be a larger transistor > not shown in the schematic that is the actual driver, and I suspect it's > overheating. Does it have a heatsink, and does it get warm/hot ? > One moment. Heat was in the environment while the whole thing was at rest: we

[neonixie-l] Turning LED clock kit into VFD clock

Hello. Being relatively lazy and constantly lacking time for experiments, but wanting to use those IV-6 VFD's bought at Friedrichshafen fair last June, I studied a way to adapt a cheap LED clock kit to 7-segment tubes. I have documented my first steps towards a functional VFD clock on my blog (

Re: [neonixie-l] Useful tool on eBay...

Very interesting tool. Before I collect dead laptops to scrounge the CFL driver, do these xBay items works like Masonlite's? Search for 221797467166 and 111691524624. Thanks, Paolo -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe

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