Re: [neonixie-l] NIMO

One can only image what one of those would auction for. While it's impressive that 64 characters can be displayed, I'm 99.99% certain those characters are static. In other words, it's not a generic 64-character display that shows arbitrary messages. In order to do that, you would need a

Re: [neonixie-l] NIMO

Have you seen the NIMO 64: http://lampes-et-tubes.info/cd/cd080.php?l=e On Tuesday 14 May 2024 at 01:31:50 UTC+2 liam bartosiewicz wrote: > That symbol tube is super cool, never seen a NIMO display anything other > than numbers, must be orders of magnitude more rare than the normal ones > > On

Re: [neonixie-l] NIMO

That symbol tube is super cool, never seen a NIMO display anything other than numbers, must be orders of magnitude more rare than the normal onesOn May 13, 2024, at 3:02 PM, ZY wrote:Oh doh, I didn't realize those pictures where already mentioned in the threadOn Monday 13 May 2024 at 17:47:11

Re: [neonixie-l] NIMO

Oh doh, I didn't realize those pictures where already mentioned in the thread On Monday 13 May 2024 at 17:47:11 UTC-4 ZY wrote: > I'm not sure what is going on in this site, I think the "seller" is just > posting the tubes to show off instead of them being for sale, but there is > a blue

Re: [neonixie-l] NIMO

I'm not sure what is going on in this site, I think the "seller" is just posting the tubes to show off instead of them being for sale, but there is a blue colored one pictured? The description seems to only mention green with numbers, green with symbols, and orange, so maybe the blue is just

Re: [neonixie-l] NIMO

https://www.ebay.com/itm/166758859027 Not my auction Cheers, Nick On Sun, May 12, 2024 at 5:49 PM gregebert wrote: > I dont think IEE got their NIMO tubes into volume production, and I've > never seen any photos of a real product using them. There is a photo of > some kind of gizmo in

Re: [neonixie-l] NIMO

I dont think IEE got their NIMO tubes into volume production, and I've never seen any photos of a real product using them. There is a photo of some kind of gizmo in the IEE sales literature, but that was probably a mockup. It's unfortunate that all the engineering effort and talent that went

Re: [neonixie-l] NIMO

Well, none of my green ones have the 'right' number on them either, so maybe they were all pre-production? On Thu, May 9, 2024 at 9:41 AM liam bartosiewicz wrote: > According to the datasheet, this tube should have the part/ordering number > BA-0006-P27, though the tubes don’t actually get

Re: [neonixie-l] NIMO

According to the datasheet, this tube should have the part/ordering number BA-0006-P27, though the tubes don’t actually get marked with that On May 9, 2024, at 8:37 AM, Nicholas Stock wrote:Hi Greg, 6000-93- on the side. So no P number as I've seen on others.On Thu, May 9, 2024 at 8:31 AM

Re: [neonixie-l] NIMO

Hi Greg, 6000-93- on the side. So no P number as I've seen on others. On Thu, May 9, 2024 at 8:31 AM gregebert wrote: > Are there any markings, part numbers, etc that indicate this tube has a > different phosphor ? I suspect it could be an ultra-rare engineering sample. > > Most of the NIMO

Re: [neonixie-l] NIMO

Are there any markings, part numbers, etc that indicate this tube has a different phosphor ? I suspect it could be an ultra-rare engineering sample. Most of the NIMO tubes I've seen, which isn't very many, have 31 in the part number (P31 phosphor), though I have seen two with '92' in the part

Re: [neonixie-l] NIMO

I'm going to sell this Red NIMO tube. It's apparently unused (no phosphor burn at all) and all the digits work as you can see in the video. I'll be honest and upfront with everyone here, I'm looking for serious offers and will keep in mind that listing it on the bay incurs fees etc, so if

Re: [neonixie-l] NIMO

I won't be trying that test :)Sent from my iPhoneOn Apr 28, 2024, at 19:06, liam bartosiewicz wrote:That’s super cool! I wonder if it’s better at resisting burn in than the normal green phosphor.On Apr 28, 2024, at 5:49 PM, Pramanicin wrote:Bit speechless didn't know I had this,

Re: [neonixie-l] NIMO

That’s super cool! I wonder if it’s better at resisting burn in than the normal green phosphor.On Apr 28, 2024, at 5:49 PM, Pramanicin wrote:Bit speechless didn't know I had this, thought it was a regular green oneOn Thursday, April 6, 2023 at 2:18:52 PM UTC-7 jörg wrote:I've programmed

Re: [neonixie-l] NIMO

Wow... On Sun, Apr 28, 2024, 8:49 PM Pramanicin wrote: > Bit speechless didn't know I had this, thought it was a regular green > one > > On Thursday, April 6, 2023 at 2:18:52 PM UTC-7 jörg wrote: > >> I've programmed the PWM for the green-neon bulbs. >> The fading looks pretty okay for

Re: [neonixie-l] NIMO Patents

elijk bericht- > Van: 'Grahame' via neonixie-l [mailto:neoni...@googlegroups.com] > Verzonden: dinsdag 25 april 2023 18:17 > Aan: neonixie-l > Onderwerp: [neonixie-l] NIMO Patents > > Hi > > Does anyone know any patent numbers for the IEE NIMO tubes please? > >

RE: [neonixie-l] NIMO Patents

-l [mailto:neonixie-l@googlegroups.com] Verzonden: dinsdag 25 april 2023 18:17 Aan: neonixie-l Onderwerp: [neonixie-l] NIMO Patents Hi Does anyone know any patent numbers for the IEE NIMO tubes please? All I have found so far is Pat Pending. Ta Grahame -- You received this message because you

[neonixie-l] NIMO Patents

Hi Does anyone know any patent numbers for the IEE NIMO tubes please? All I have found so far is Pat Pending. Ta Grahame -- 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

RE: [neonixie-l] NIMO

%7Ctkp%3ABk9SR_6Q8eLpYQ Jeff From: neonixie-l@googlegroups.com On Behalf Of Jon D. Sent: Tuesday, April 4, 2023 11:28 AM To: neonixie-l Subject: Re: [neonixie-l] NIMO Do you have a source for the green NE-2s with the internal white phosphor ? On Tuesday, April 4, 2023 at 9:33:26 AM

Re: [neonixie-l] NIMO

There is a tube called the TX-19A, which is similar to the MTX-90, but it has a green phosphor like that in a magic eye. Some went up on eBay recently, but it looks like they’re sold out now. > On Apr 4, 2023, at 7:42 AM, jörg wrote: > > Is there a green-glow flathead indicator tube

Re: [neonixie-l] NIMO

Hard to say. 10,000 hours is 30 years worth of display time at 1 hour-per-day which is probably reasonable. The problem is what were the assumptions, or test conditions, that led to that lifetime ? And was it the phosphor that burned-out, or the filaments ? We really dont know. I speculated

Re: [neonixie-l] NIMO

Greg, if they turn out to last like IN18's (datasheet says only >5000 hrs), then you should be good! :) Cheers, Nick On Wed, Apr 5, 2023 at 1:25 PM Nicholas Stock wrote: > A PIR is a must. Datasheet for the BA-P31 says 10,000 hrs at 100 > Foot-lambert (FL). Is there any reason to think

Re: [neonixie-l] NIMO

A PIR is a must. Datasheet for the BA-P31 says 10,000 hrs at 100 Foot-lambert (FL). Is there any reason to think that these should age differently from a regular CRT? On Wed, Apr 5, 2023 at 1:19 PM gregebert wrote: > now the BIG question..how long will the NIMO tubes last ?? I've done a

Re: [neonixie-l] NIMO

now the BIG question..how long will the NIMO tubes last ?? I've done a limited amount of runtime on mine, less than 50 hours, and I can already see very faint phosphor burn with a UV lamp. My anode current is around 30ua (varies by digit, but averaging around 30ua which is the datasheet

Re: [neonixie-l] NIMO

The TH-19A is pretty interesting but unobtainium. So I have switched to the green neon indicators, which I've ordered some time ago at aliexpress. Same type as gregebert use, I guess. I've mounted them a bit too far from the center. The nimos are dimmed based on a LDR, so I have to pwm the

Re: [neonixie-l] NIMO

I have automated searches setup aswell but sometimes they just miss things On Tue, Apr 4, 2023, 9:24 PM Mac Doktor wrote: > > On Apr 4, 2023, at 9:00 PM, Nicholas Stock wrote: > > Looks like they all sold out though. > > > He must have just gotten them. I've never seen them before and I have a

Re: [neonixie-l] NIMO

I didn't buy them. I noticed they were listed a couple days ago. Didn't last long evidently. The listing states they made them with different colours interesting! On Tue, Apr 4, 2023 at 6:24 PM Mac Doktor wrote: > > On Apr 4, 2023, at 9:00 PM, Nicholas Stock wrote: > > Looks like they all

Re: [neonixie-l] NIMO

> On Apr 4, 2023, at 9:00 PM, Nicholas Stock wrote: > > Looks like they all sold out though. He must have just gotten them. I've never seen them before and I have a search for "magic eye" that I check every day. I go through his stock periodically as well. Terry Bowman, KA4HJH "The Mac

Re: [neonixie-l] NIMO

A. Those are amazing. On Tue, Apr 4, 2023, 9:01 PM Nicholas Stock wrote: > These would fit the bill.. > > https://www.ebay.com/itm/115747673212 > > Looks like they all sold out though. > > On Tue, Apr 4, 2023 at 4:43 PM Mac Doktor wrote: > >> >> On Apr 4, 2023, at 5:08 PM, Yohan Park

Re: [neonixie-l] NIMO

These would fit the bill.. https://www.ebay.com/itm/115747673212 Looks like they all sold out though. On Tue, Apr 4, 2023 at 4:43 PM Mac Doktor wrote: > > On Apr 4, 2023, at 5:08 PM, Yohan Park wrote: > > I think these would fit nicely with the Nimo tubes. >

Re: [neonixie-l] NIMO

> On Apr 4, 2023, at 5:08 PM, Yohan Park wrote: > > I think these would fit nicely with the Nimo tubes. > https://www.ebay.com/itm/195661812653 The only problem is that these will work loose from vibration and thermal cycling. Use bayonet based bulbs

Re: [neonixie-l] NIMO

I think these would fit nicely with the Nimo tubes. https://www.ebay.com/itm/195661812653 On Tuesday, April 4, 2023 at 4:42:56 PM UTC+2 jörg wrote: > Is there a green-glow flathead indicator tube available? > Size like the MTX-90 Thyratron or smaller. I would like to use them as > colons for

Re: [neonixie-l] NIMO

You can buy them on aliexpress and ebay in smaller quantities today On Tue, Apr 4, 2023, 1:08 PM gregebert wrote: > I bought from aliexpress several years ago. Had to buy 1000, so I split-up > and resold to neonixie members to offset my cost. > Other colors are available; blue would be cool. >

Re: [neonixie-l] NIMO

I bought from aliexpress several years ago. Had to buy 1000, so I split-up and resold to neonixie members to offset my cost. Other colors are available; blue would be cool. On Tuesday, April 4, 2023 at 9:28:19 AM UTC-7 Jon D. wrote: > Do you have a source for the green NE-2s with the internal

Re: [neonixie-l] NIMO

Do you have a source for the green NE-2s with the internal white phosphor ? On Tuesday, April 4, 2023 at 9:33:26 AM UTC-6 gregebert wrote: > I'm using green NE-2 bulbs. Internal phosphor is white; glows green when > energized. The lifetime isn't as long as gas-only bulbs, so be sure to > mount

Re: [neonixie-l] NIMO

I'm using green NE-2 bulbs. Internal phosphor is white; glows green when energized. The lifetime isn't as long as gas-only bulbs, so be sure to mount on a plug-in card. https://www.youtube.com/watch?v=sWUcURQvQsY On Tuesday, April 4, 2023 at 7:42:56 AM UTC-7 jörg wrote: > Is there a

Re: [neonixie-l] NIMO

Is there a green-glow flathead indicator tube available? Size like the MTX-90 Thyratron or smaller. I would like to use them as colons for separating H:M:S. On Saturday, April 1, 2023 at 9:42:51 PM UTC+2 jörg wrote: > A short update to my NIMO project. > Meanwhile I've put the tubes in a 3D

Re: [neonixie-l] NIMO

Yes, this is the clock from Roger. And he is the guy, who helped me out with one tube, becaue one of mine was outgassed. Again, thank you very much selling me one. His is the leftmost one in the video, it is a BA -P31 (blueish-green), whereas mine are 6000-92-0006 (yellow-green). And the

Re: [neonixie-l] NIMO

Nice to see one more 6 digit Nimo clock! There's at least one other 6 digit Nimo clock that was shown on Youtube about a year ago: https://www.youtube.com/watch?v=JA1oeqavMg8=3s /Martin On Tuesday, 27 September 2022 at 16:13:27 UTC+2 gregebert wrote: > Really nice work! Congratulations on

Re: [neonixie-l] NIMO

Really nice work! Congratulations on being the first 6-tube NIMO clock I've ever seen or heard of. On Tuesday, September 27, 2022 at 1:58:53 AM UTC-7 jörg wrote: > Just a small update, > I've made a short video regarding the build of my 6 tube nimo clock. > And thank's a lot to astroschmidt

Re: [neonixie-l] NIMO

Just a small update, I've made a short video regarding the build of my 6 tube nimo clock. And thank's a lot to astroschmidt to sell me one of his nimo's to complete my clock. You sure will see his nimo in the video. https://www.youtube.com/watch?v=VAhWgG5TKMg All the best to gregebert project

Re: [neonixie-l] NIMO

On Sunday, October 4, 2020 at 3:09:46 PM UTC+2 jörg wrote: > So, if there is someone in the group, who is willing to sell a nimo which > might join the other five, pls. pm me. You could ask Fran Blanche She's got a few Tubes and only has 1 in use and not enough to build a clock. Maybe she's

Re: [neonixie-l] NIMO

On Sunday, October 4, 2020 at 3:09:46 PM UTC+2 jörg wrote: > So, if there is someone in the group, who is willing to sell a nimo which > might join the other five, pls. pm me. You could ask Fran Blanche She's got a few Tubes and only has 1 in use and not enough to build a clock. Maybe she's

Re: [neonixie-l] NIMO

Ah! I have been following your channel for some time, and just made the connection today that you are active on the Google group as well! I was very excited for you when I saw the box of NIMOs! On Monday, October 5, 2020 at 10:42:41 AM UTC-4 astroschmidt wrote: > Hi Martin, > > here´s another

Re: [neonixie-l] NIMO

Ahso it was you that bought those NIMO's. :) On Mon, Oct 5, 2020 at 7:42 AM astroschmidt wrote: > Hi Martin, > > here´s another YouTube video where I unbox the Ebay-auction package (if > you haven´t already found it): > https://youtu.be/7Mprac_anEA > > If I find the time I will scan the

Re: [neonixie-l] NIMO

Hi Martin, here´s another YouTube video where I unbox the Ebay-auction package (if you haven´t already found it): https://youtu.be/7Mprac_anEA If I find the time I will scan the documents that were included in the Ebay-auction and share them here. . The five tube mounting bracket is ATM under

Re: [neonixie-l] NIMO

Would it be possible for you to share the circuit diagrams that you got in the box with the tubes, I haven't seen some of them, just the datasheet. Also, can you share some photos of the mechanical pieces in the package, like photos of the five tube mounting bracket and of the power supply (saw

Re: [neonixie-l] NIMO

Hi Jörg, as I lately got 10 NIMOs in an Ebay auction and am currently also working on a 6 tube NIMO-clock I can sell you a tube from my spares. YouTube NIMO-Clock Update#2 YouTube NIMO-Clock Update#1 Please PM me. Roger jörg schrieb

Re: [neonixie-l] NIMO

Ah, what a pity. However you now have one that you could open up to get some nice photos of the insides from, like the ones available for the Telefunken XM1000 design here (last photo): http://www.jogis-roehrenbude.de/Roehren-Geschichtliches/Nixie/XM1000.htm /Martin On Sunday, 4 October 2020

Re: [neonixie-l] NIMO

Had the same thing with a NOS IN-12B though they do not compare to a NIMO outgassing. I was refunded the cost of the IN-12B and they are readily replaceable. But those metal to glass bonds are not always tenacious. Outgassing has been an issue with vacuum tubes since the dawn of their

Re: [neonixie-l] NIMO

So, if there is someone in the group, who is willing to sell a nimo which might join the other five, pls. pm me. jörg schrieb am Sonntag, 4. Oktober 2020 um 14:57:19 UTC+2: > Martin, you are right. > I've checked the getter flash and it is gone. Only a white shadow left. > So, sadly, the tube

Re: [neonixie-l] NIMO

Martin, you are right. I've checked the getter flash and it is gone. Only a white shadow left. So, sadly, the tube has sucked air and is cracked somewhere at the pins. Unfortunately, I don't have a plasma ball. Dekatron42 schrieb am Sonntag, 4. Oktober 2020 um 01:20:23 UTC+2: > Have you got a

Re: [neonixie-l] NIMO

Have you got a Plasma ball to hold it to? If air has entered in you might see a very faint blueish glow if you turn off the surrounding light. What does the getter flash look like, like a mirror or is it gone completely, or has it gone white? I have seen a few Nixies where the Anode wire has

Re: [neonixie-l] NIMO

Hi Gregebert, yes, I've checked the tube several times. The cold resistance is about 2,1 ohm, which is identical to the other tubes. Just swapped the tube with a running one on the same driver board. Sadly, no function at all. Under a microscope, no crack is visible. I've made a short video to

Monoscopes - was Re: [neonixie-l] NIMO

On 2020-10-03 10:00 a.m., Robert G. Schaffrath wrote: > "Those nimo look like tiny CRTs!  If anyone can make them it’s Dalibor!" > > Talk about a niche market. Not only are they infinitely more complex to > construct than a Nixie tube, the market for them would be even smaller > than for his

Re: [neonixie-l] NIMO

I recognise those pictures. I was just looking at the earlier today. Here: https://www.yoycart.com/Product/565022565965/ Il giorno sabato 3 ottobre 2020 alle 15:43:08 UTC+1 Dekatron42 ha scritto: > A long time ago I found these photos on the Internet, can't find them now > though, however I

Re: [neonixie-l] NIMO

A long time ago I found these photos on the Internet, can't find them now though, however I am not sure if they are fake or true Nimo's. /Martin [image: blue.jpg] [image: red.jpg] [image: symbols-green.jpg] -- You received this message because you are subscribed to the Google Groups

Re: [neonixie-l] NIMO

"Those nimo look like tiny CRTs! If anyone can make them it’s Dalibor!" Talk about a niche market. Not only are they infinitely more complex to construct than a Nixie tube, the market for them would be even smaller than for his Nixie tubes. I had commented on the short YouTube video that it

Re: [neonixie-l] NIMO

Well, they are tiny CRTs! On Fri, Oct 2, 2020, 3:10 PM martin martin wrote: > Those nimo look like tiny CRTs! If anyone can make them it’s Dalibor! > > * Are you following this ? > > On Fri, Oct 2, 2020 at 10:25 gregebert wrote: > >> Jorg - Regarding the dead tube, have you compared the

Re: [neonixie-l] NIMO

Those nimo look like tiny CRTs! If anyone can make them it’s Dalibor! * Are you following this ? On Fri, Oct 2, 2020 at 10:25 gregebert wrote: > Jorg - Regarding the dead tube, have you compared the filament resistance > of the bad tube to the others ? > > NIMO tubes have 2 parallel

Re: [neonixie-l] NIMO

Jorg - Regarding the dead tube, have you compared the filament resistance of the bad tube to the others ? NIMO tubes have 2 parallel filaments, so if one is open, the resistance will be TWICE the value of a good tube. I think the cold resistance is around 3 ohms. If 1 filament is out, you can

Re: [neonixie-l] NIMO

Filaments are about 1.1V; you want to limit the current to 200mA max. 180mA is quite good and will prolong the filament lifetime. The anode is typically 1850V, at 30uA. The anode current determines the brightness, which is the 'wear-and-tear' on the phosphor. So, keeping the anode current on

Re: [neonixie-l] NIMO

Just curious, what's the filament voltage? 27VDC? And what's the HV? ~ *mcvei...@gmail.com * On Thu, Oct 1, 2020 at 5:24 PM Paul Andrews wrote: > Yes, they do look very nice. > > On Oct 1, 2020, at 4:44 PM, jörg wrote: > > Short update of my nimo project. > I've got 5 tubes running.

Re: [neonixie-l] NIMO

Yes, they do look very nice. > On Oct 1, 2020, at 4:44 PM, jörg wrote: > > Short update of my nimo project. > I've got 5 tubes running. The sixt is unfortunately DOA. > The tubes filaments are driven with three power supplies, with soft start IC > (load switch). > So the filament gets started

Re: [neonixie-l] NIMO

I‘m using Eagle to layout. It takes time for me to feel comfortable with it. And Fusion360. -- 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] NIMO

I forgot to ask what PCB-software you are using. I've been using Designspark since it was released but have had my eyes on KiCad for a while but not taken the step to try it out yet. /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To

Re: [neonixie-l] NIMO

Nice name and very nice look. I mainly use Elecrow for my PCBs as they have been cheaper than OSH-Park this far but they don't have this nice PCB, might try OSH-Park just for this PCB! It looked like 2 or 2.5mm to me. /Martin On Tuesday, 14 July 2020 14:27:43 UTC+2, jörg wrote: > > It's 1,6mm

Re: [neonixie-l] NIMO

It's 1,6mm from OSH-Park. I'm doing all PCB prototyping with them. They call it "Atfter Dark: clear soldermask on a black substrate for stylish boards" I like it... stylish... ;) Dekatron42 schrieb am Dienstag, 14. Juli 2020 um 12:35:29 UTC+2: > Looks nice! > > Ahh, the socket on the wrong side

Re: [neonixie-l] NIMO

Looks nice! Ahh, the socket on the wrong side has happened to me on a few occasions too. What kind of PCB did you use, it looks thicker than standard and also a lot smoother on its black surface, especially since it doesn't have a colored surface? Where did you roder them from? /Martin --

Re: [neonixie-l] NIMO

@Martin: regarding your question of longer life on higher anode voltage: No, that's not what telefunken means. They wrote on behalf of multiplexing, in my opinion, a bit confusing. In other words: at multiplexing with higher beam current, the effective current (like rms) is nearly the same as in

Re: [neonixie-l] NIMO

@Martin: regarding your question of longer life on higher anode voltage: No, that's not what telefunken means. They wrote on behalf of multiplexing, in my opinion, a bit confusing. In other words: at multiplexing with higher beam current, the effective current (like rms) is nearly the same as in

Re: [neonixie-l] NIMO

I remember watching the XM1000 auction on Ebay a few years ago; I believe a set of 4 went from 400 USD to over 2000 in the last few seconds. Their rectangular shape had a better appearance I thought. The driver circuit is quite simple and inexpensive: eight MC14094 will control 6 tubes and

Re: [neonixie-l] NIMO

I did look through the XM1000 datasheet the other day (the Telefunken copy of the NIMO that had to be scrapped due to the patent battle between IEE and Telefunken, which IEE won) and found one interesting thing about running these displays multiplexed (just as the NIMO datasheet says that you

Re: [neonixie-l] NIMO

I'm playing with the idea to use a TPS22810 Load Switch and a non fet royer for each tube. I've ordered samples from TI. The idea to use a current regulated supply was my first try. I've build one with a LMZ22003, which is a real interesting chip, because it's output voltage can be as low as

Re: [neonixie-l] NIMO

I gave that idea a lot of thought, but I decided against it for 2 reasons: #1 It will waste a fair amount of energy. There were several methods I analyzed using the power sources I had available in the design, and this was the closest to a perfect solution. #2 Using the center-tapped

Re: [neonixie-l] NIMO

> My original intention was that I would monitor the anode-current for all 6 > tubes, and I could detect a partial filament burnout by checking for > lower-than-expected current. Software could isolate the failing tube, then > shut down the clock. Unfortunately there is a source of noise in the

Re: [neonixie-l] NIMO

After some experimenting, I ended-up using 5.1 ohms for a single resistor. I could have used 2 resistors, one on each side, to maintain DC balance but instead I chose to use a single resistor so I could have my FPGA monitor the filament status, along with it's associated fuse and resistor. Each

Re: [neonixie-l] NIMO

Well, I can answer my last question on my own, didn't think correctly there - of course you don't short these resistors as that would result in 2.5V across the heaters. The reason I asked was because I thought you perhaps had two sets of series resistors, one left in the circuit at all times

Re: [neonixie-l] NIMO

So you are using something like a 6.8 Ohm series resistor on each side of the heater to get these figures? If you use a series resistor on each side, what effect does that result in on the DC-bias, none or something that you have to adjust for? Do you short these resistors after some time so

Re: [neonixie-l] NIMO

Be careful about the inrush current when energizing the filaments; the cold resistance is around 2.8 ohms, whereas hot is around 7 ohms. So, with a 1.1V supply, your surge-current will be about 400mA unless you use circuit tricks to lower it. I use a series resistor + fuse and drive from a

Re: [neonixie-l] NIMO

Yes, i agree with grebert. The filament driving was the most "dangerous", in terms of afraid, part for me. Not the high voltage. I do not want, in any case, to overload or destroy the filament due to too much current. The 1,1Vrms are crucial, because it affect the lifetime of the tube. Thats

Re: [neonixie-l] NIMO

No worries... NIMO tubes are not harmful in terms radiation (voltage is too low), and any toxicity of internal materials would be no-worse than a CFL bulb (I doubt NIMO tubes have mercury, but they do have phosphorus and other things). Even the high voltage (2kV) isn't harmful due to the low

Re: [neonixie-l] NIMO

Hi Martin, i did not work on the ghosting issue. I'm waiting for the pcb's. After that, i will start get rid of that problem. @paul: yes i know that video. It looks like that the ghosting issue is there, too. -- You received this message because you are subscribed to the Google Groups

Re: [neonixie-l] NIMO

I assume you guys have also looked at this? https://www.youtube.com/watch?v=xmWg7CtN0Ac On Tuesday, June 30, 2020 at 10:21:27 AM UTC-4, Dekatron42 wrote: > > @jörg: if you fixed the ghosting you had on the digit, how did you do it? > > @gregebert: you mentioned some leaked from th "7" digit,

Re: [neonixie-l] NIMO

@jörg: if you fixed the ghosting you had on the digit, how did you do it? @gregebert: you mentioned some leaked from th "7" digit, what was the cause of this? I am trying to get the courage to experiment with my NIMOs /Martin -- You received this message because you are subscribed to

Re: [neonixie-l] NIMO

Oh, I had missed those, thanks for posting the links here! /Martin On Monday, 29 June 2020 16:08:06 UTC+2, gregebert wrote: > > On Sunday, June 28, 2020 at 11:37:22 PM UTC-7, Dekatron42 wrote: >> >> @gregebert, thanks for sharing your design! >> >> /Martin >> > > That's just the tip of the

Re: [neonixie-l] NIMO

On Sunday, June 28, 2020 at 11:37:22 PM UTC-7, Dekatron42 wrote: > > @gregebert, thanks for sharing your design! > > /Martin > That's just the tip of the icebergit's a real monster. But it seems to be working. Some videos I posted on youtube: https://www.youtube.com/watch?v=jJO-EIHrVe8

Re: [neonixie-l] NIMO

@gregebert, thanks for sharing your design! /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 view this

Re: [neonixie-l] NIMO

Martin - I'm using MC14094 CMOS shift-registers to drive the NIMO grids, with a 1meg series resistor. The CMOS shift registers are driven from a 10VDC supply, so the grids are either 0V or +10V. To get proper cutoff, I drive the center-tap of the filament transformer from a buffered DAC, so I

Re: [neonixie-l] NIMO

@ jörg, thanks for letting me know that you used Moorrees design. /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] NIMO

Here they ate, scroll down (don’t miss the other nice designs though): https://threeneurons.wordpress.com/miscellaneous-projects/ -- 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,

Re: [neonixie-l] NIMO

> On Jun 28, 2020, at 3:32 PM, jörg wrote: > I have used Michael‘s approach. > The CD4028 with levelshifting transistors. > Thank‘s to Michael Moorrees informations on his website. Where is that? I searched his site and couldn't find it. Terry Bowman, KA4HJH "The Mac Doctor” "Never install

Re: [neonixie-l] NIMO

@jörg & @gregebert - what driver did you use for the grids? Did you go with the CD4028 like in Michael Moorrees or with some other driver, or even discrete transistors? /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe

Re: [neonixie-l] NIMO

Hi John, yes, it is a CCFL inverter salvaged from an old flatbed scanner. I've tweaked it a little bit to get the positive anode voltage. A HV Diode from an old flea zapper and high voltage capacitors. This one works pretty well, because it is adjustable from 6 to 12 volts, which gives me 1600

Re: [neonixie-l] NIMO

> I've finished the Protoboard for the NIMO tube. > > And, again, a short video. > > https://drive.google.com/file/d/1zqwuOtwQdO6CUYCdWOrgNX02n50pVdhv/view?usp=sharing > > What are you using for a high

[neonixie-l] NIMO

Brilliant -- 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 view this discussion on the web, visit

Re: [neonixie-l] NIMO

I particularly like the gratuitous pan to the other 5 NIMO tubes towards the end of the video :) Should be quite the timepiece. Well done. On Wed, Jun 3, 2020 at 10:11 AM jörg wrote: > The filament PWS is tested with ballast-resistors delivering 1,5A. That > was flawless. But, anyway, it's

Re: [neonixie-l] NIMO

The filament PWS is tested with ballast-resistors delivering 1,5A. That was flawless. But, anyway, it's not tested with 6 Nimos right now. I've tested your advised filament bias offset. Unfortunatelly no change to better. Am Mittwoch, 3. Juni 2020 16:00:16 UTC+2 schrieb gregebert: > > Nice

Re: [neonixie-l] NIMO

Nice work. If you adjust the DC bias on the filament, you should be able to reduce the ghosting and get a sharper image. My NIMO clock uses a DAC to set the offset, so I can have software adjust it. Have you tested your power supply at full-load ? I had to make a lot of adjustments to solve

Re: [neonixie-l] NIMO

Very nice! Time to find 6 of them and choose appropriate set of colons to match that color ~ *mcvei...@gmail.com * On Wed, Jun 3, 2020 at 2:12 AM jörg wrote: > Hi group, > I'm excited to share a short video for my powered-up NIMO tube. > > The filament PWS took time to build. The

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