14:57:19 UTC+2, jörg wrote:
>
> 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 Son
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
Looks very nice!
Will you include wireless charging?
/Martin
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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]
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Check out this auction:
https://www.ebay.com/itm/Vintage-Texas-Instruments-Nixie-Tube-Clock-TID-Dedication-1970-Deutschland-GMBH/114432471767?hash=item1aa4b4f2d7:g:ouEAAOSwg6JfcSRY
/Martin
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Sorry, spelled Ronald Dekkers name wrong.
/Martin
On Wednesday, 23 September 2020 11:20:01 UTC+2, Dekatron42 wrote:
>
> Rondal Dekker has a clock at his webpage who is using them:
> https://www.dos4ever.com/nixie1/nixie1.html
>
> /Martin
>
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Rondal Dekker has a clock at his webpage who is using them:
https://www.dos4ever.com/nixie1/nixie1.html
/Martin
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You are welcome to put them in a package to me.
/Martin
On Sunday, 20 September 2020 23:41:49 UTC+2, Pramanicin wrote:
>
> Hi Folks, I have a NEO-8000 display with some issues (see attached) and
> also a NEO-5000 that's dead. These are looking for an appreciative home. If
> interested, then
sometimes use extra
support rods to keep the digits/symbols flat.
/Martin
On Sunday, 20 September 2020 21:03:27 UTC+2, Bill Notfaded wrote:
>
> I don't see why you couldn't make a cathode like that split?
>
> Bill
>
> On Sun, Sep 20, 2020, 12:01 PM Dekatron42 > wrote:
>
>&g
t or even double line font for the front
> view big Nixie. Have we ever seen a double line numerical Nixie font
> before? That's two lines separated by space in the font shape.
>
> Bill
>
> On Sun, Sep 20, 2020, 3:31 AM Dekatron42 wrote:
>
>> I'd say that the Anode cag
20, 2020, 10:45 Dekatron42 >
> wrote:
>
>> Just now I tried to respond to the user posting in one of the threads but
>> I was met with two error messages, one telling me to set up my browser
>> (tried in IE, Edge & Firefox) to use "mailto-links" and the
Sunday, 20 September 2020 at 15:54:46 UTC+2 Adrian Pardini wrote:
> I don't know about the web version but I'm subscribed via mail and from
> there I get both the group and user address as usual.
>
> On Sun, Sep 20, 2020, 10:45 Dekatron42 wrote:
>
>> Just now I tried to res
Just now I tried to respond to the user posting in one of the threads but I
was met with two error messages, one telling me to set up my browser (tried
in IE, Edge & Firefox) to use "mailto-links" and the other error message
telling me that answer directly to users has been turned off for this
Looking at some of the photos it can be seen that the added metal has been
ground away near the ends where the holes for the mounting posts are, look
at figure 8 and some of the other detail photos where the ends can be seen
with clear evidence that someone has ground of the ends as you can see
I'd say that the Anode cage is made from a sieve like woven structure in
the "vintage" type and from etched metal in the MX-57X type.
I do think that the unknown types can be an old Chinese design and not a
modern design as they are missing the rod that is usually used at the top
and bottom
It confirms what I have seen on Chinese sites, sometimes the seller even
writes that the tube is not for sale only for showing and lists the price
as 888 Yuan.
@Qu L: Does the number 888 have any special meaning in any way in China or
just randomly chosen?
/Martin
On Friday, 18 September
Yes, I'd like at least one each of the different versions of Nixies that
Dalibor manufacture, but I wouldn't have any good spot to put a clock with
six of his current RZ568M as such a clock is quite big.
I, and a few people I have spoken to, would like to have a bedside clock in
a nicely
Well, people aren't always rational, and for some Dalibors Nixies are not
what they are looking for no matter how nice they are. Some are looking for
the Nixies they used in clocks, that fit on their bedside table, and
calculators when they grew up and some like to be able to write a message
I've seen these and other old Chinese Nixies, and bought some other types
myself, from Chinese sites for a tenth of what they are offered for by this
seller, and even less.
I do believe that this seller offered SZ-2 Chinese Nixies for a similar
markup price a year or two ago, it was discussed
The anode is the rear large surrounding metal plate and possibly also two
of the special electrodes that you can see in between the digits, they look
sonething lik -|-|-|- if you look at the auction photos here, 2nd and 7th
from top if I see correctly:
A draw from the PS in series.
>
> Bill
>
> On Thursday, August 27, 2020 at 11:10:42 AM UTC-7 Dekatron42 wrote:
>
>> I don't know much about dimming these but some of the earliest dimming
>> solutions for Nixies that I've seen actually used diac/triac/thyristors
>>
drive them individually.
>>>>
>>>> Like what I did here:
>>>>
>>>> https://youtu.be/dCdzolBSNM8
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Michail Wilson
>>>>
>>>> 206-920-
The ETL handbook, the large red binder in the center, can be downloaded
from Frank Philipse:
https://frank.pocnet.net/sheets/022/suppinfo/ETL-ElectronicTubeHandbook-i3.pdf
(or at least one version of it as Ericsson sent out newer datasheets to be
included over the years, the pink ones).
The
I don't know much about dimming these but some of the earliest dimming
solutions for Nixies that I've seen actually used diac/triac/thyristors
with unsmoothed half- or fullwave rectified mains voltage, and also some
transistorized solutions.
Maybe something similar could be used here, they
tasheet isn't always the only
> way. I've got a few of them. I still have that board with 3 A-201 and 5
> small tubes they're supposed to drive on it if I'm remembering correctly.
>
> Best Regards,
>
> Bill
>
> On Wed, Aug 26, 2020, 11:19 PM Dekatron42 > wrote:
>
>&g
C+2, Terry Bowman wrote:
>
>
> On Aug 25, 2020, at 7:15 AM, Dekatron42 > wrote:
>
> Here's another datasheet with the Russian alphabet.
>
>
> I forgot to ask: here did these datasheets come from? They're not in any
> of the documents that I have.
>
>
>
I just wish there was a simple and cheap way of refilling these GR10G with
a gas mixture that would make them long-life Nixies.
/Martin
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That's the correct values. However they seem to work a little bit better on
300V anode voltage with 18k anode resistor, possibly due to their aging.
They also need some time to "wake up" when they have been stored for long,
as with other gas filled tubes after long storage.
/Martin
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You
These need a higher Anode voltage (minimum 220V in some datasheets and 250V
in some) to work properly and also cathode resistors on cathodes "1" and
"7" to get correct current as the digits are not size corrected to get
equal current compared to the other cathodes - you will destroy the
There are many different versions of these cards and therefore different
ways the IN-28s are hooked up, just google "ИН-28" and look at the images.
Some are meant to be driven from unsmoothed full wave rectified mains
voltage, some from smoothed DC-voltage, some have a simplified circuit
Here is an example of Cyrillic and Western characters.
/Martin
On Sunday, 23 August 2020 02:34:12 UTC+2, Terry Bowman wrote:
>
> I just snagged the last of 11 IN-23s for sale on eBay (a twelfth one was
> auctioned off first):
>
>
>
This display was discussed here on the forum a few weeks ago:
https://groups.google.com/forum/#!topic/neonixie-l/bVoCKhPv7Dg the tubes
are IN-28 single dot nixies for large displays. These displays were
supposedly used in the Russian metro and other places. It also turned up in
the game Metro
Hi,
Can you get hold of the IN-30, the same type of bargraph display as the
IN-33 but with just one row/line with dots?
/Martin
On Monday, 17 August 2020 20:00:37 UTC+2, Юрий Овчинников wrote:
>
> Hi guys. Who is interested in IN33?
>
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You can use 3 amp diodes in all positions. Heathkit saved a few cents by
using 1 amp diodes for the logic portion and 3 amp diodes for the lamp
portion of the design.
This design is used with center tapped transformers and you often see it in
linear power supply modules which use the LM723
The Burroughs Brochure 616 mentions this test but does not contain the
description of the cathode disintegration.
/Martin
On Friday, 31 July 2020 14:38:01 UTC+2, Paul Andrews wrote:
>
> My source for this was a magazine article that referenced a test made by
> Burroughs that ran over several
Where did you read about this by the way?
/Martin
On Friday, 17 July 2020 19:27:39 UTC+2, Paul Andrews wrote:
>
> I recently saw a post that suggested that the addition of a mercury dopant
> to Nixie tubes does not confer the protection that we have all been led to
> believe - apparently the
There is some information in this article, presumably first hand
information from a Burroughs engineer, on the extended life when mercury
was added:
https://spectrum.ieee.org/tech-history/dawn-of-electronics/the-nixie-tube-story-the-neon-display-tech-that-engineers-cant-quit
(just search for
Have you asked Brent Hilpert who owns the site you linked too if he has the
datasheets? He has been very helpsome when i have asked him about other
equipment with dekatrons and the E1Ts.
/Martin
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Nice!
I like the simplicity of the design.
/Martin
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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
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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
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
--
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
and one that was shorted
after some time.
/Martin
On Tuesday, 30 June 2020 23:25:32 UTC+2, Dekatron42 wrote:
>
> 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 d
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
@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
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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!
>>
>> /Mar
@gregebert, thanks for sharing your design!
/Martin
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@ jörg, thanks for letting me know that you used Moorrees design.
/Martin
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Here they ate, scroll down (don’t miss the other nice designs though):
https://threeneurons.wordpress.com/miscellaneous-projects/
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@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
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I think it is called "high frequency neon tester", google it and you'll se
some similar items.
/Martin
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You can also ask Dalibor Farny (https://www.daliborfarny.com/) how much he
charges for one Nixie with the whole name.
/Martin
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The Burroughs Nixies with letters very rarely turn up on eBay, but the
Polish LL-555, 556, 557 & 558 are somewhat more common so my suggestion is
that you look for those on eBay.
/Martin
On Tuesday, 16 June 2020 07:54:58 UTC+2, Bogdan Paduraru wrote:
>
> Dear all
>
> I am Bogdan from Romania
There is at least a manual for the 705A and 705AZ modules here:
http://www.bunkerofdoom.com/ serach for Beckman and you'll find the 5500
EPUT meter where there is a schematic and explanation of the whole unit.
These units are similar to the Hewlett Packard HP-4A series of modules, I'm
not sure
Looks like they have several hundred available if you look at the Taobao
listing, they are also selling them in sets of four with one free colon
tube or sets of six with two free colon tubes (translated the Chinese text
with Google).
/Martin
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https://www.ebay.com/itm/nixie-tube-NL7094-giant-round-long-life-NEON-READOUT-valve-NATIONAL-BEZEL-RARE/254522682842?hash=item3b42bbedda:g:CrkAAOSwPpJeVOHO
Not directly related to IN-18 but fundamental in explanation of Nixie
driving you can read this article if you haven't done so already (one among
many similar articles):
http://www.decodesystems.com/re-how-nixies-work.html , the original
magazine can be found here:
There's another way of dimming/fading described in this thread with source
code on Github - not mine, just remembered it.
https://groups.google.com/forum/#!searchin/neonixie-l/fading$20table%7Csort:date/neonixie-l/bh7kymv2xQA/MogsmOnHAgAJ
/Martin
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You can also turn the uTracer into a transistor curve tracer:
https://www.dos4ever.com/uTracerNotebook/Notebook.html#tortester1 , I
haven't done it but thought about it a few times.
There's also the new uTracer V6, not a kit yet but it has a weblog:
Have you checked the voltages from the power supply?
Have you checked that the voltages reach the IC, transistors and displays?
Do you have a plasma ball that you can hold close to the displays to see if
they glow orange?
/Martin
On Saturday, 25 April 2020 18:19:07 UTC+2, N9KTW wrote:
>
> Hi
The data differs though I just read that, missed it at the first
look.
/Martin
On Friday, 24 April 2020 00:32:28 UTC+2, Dekatron42 wrote:
>
> Central Semiconductor Corp list them as having the same die size, check
> their documents named "Device datasheet&
Central Semiconductor Corp list them as having the same die size, check
their documents named "Device datasheet" here
https://my.centralsemi.com/product/partpage2.php?part=CP310-MPSA42 and here
https://my.centralsemi.com/product/partpage2.php?part=CP310-MJE340, now I
don't know if other
If you cut off a few of the pins (in some cases you need to cut off all) on the
top you can remove the top mica sheet and look down into the tube. Sometimes
they flattened the pins or welded small pieces of flat wire to them on the top
so then you’ll have to cut off all to be able to lift the
Hamamtsu also manufactures these:
https://www.hamamatsu.com/eu/en/product/optical-sensors/uv_flame-sensor/flame-sensor_uv-tron/index.html
/Martin
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They are vacuum tube flame detectors.
/Martin
On Sunday, 19 April 2020 23:27:02 UTC+2, Jens Boos wrote:
>
> Interesting, what are those, Nick?
>
> Cheers
> Jens
>
> On 2020-04-19 2:36 p.m., Nicholas Stock wrote:
>
>
>
> Sent from my iPhone
>
> On Apr 19
Hey, turns out I am interested, if no one else have responded I'd like to
have them.
/Martin
On Sunday, 19 April 2020 22:36:40 UTC+2, Pramanicin wrote:
>
>
>
> Sent from my iPhone
>
> On Apr 19, 2020, at 13:18, Dekatron42 >
> wrote:
>
>
> Nothing is free in l
Nothing is free in life! ;) Couldn't resist.
What is it that is free, I can't see any photo or such.
/Martin
On Sunday, 19 April 2020 21:43:19 UTC+2, Pramanicin wrote:
>
> Free, just pay shipping.
>
> Nick
>
> Sent from my iPhone
>
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Maybe you get them for free nowadays, these "Shipment delays" and you
can't opt out of them as they aren't a separate item.
/Martin
On Monday, 13 April 2020 20:22:33 UTC+2, Terry Bowman wrote:
>
>
> On Apr 12, 2020, at 7:47 PM, Nicholas Stock > wrote:
>
> Hi Terry, I've received a
I don't think it has anything to do with the current virus pandemic, just
that some Swedish postal workers have emigrated to other countries and have
spread their working habits ;) we've had it like this for more than 10
years here
/Martin
On Monday, 13 April 2020 01:44:37 UTC+2,
What would you say of someone bought it and then won the Powerball lottery
and kept on winning it every week forever, and all other lotteries there
are too?? ;) ;) ;)
/Martin
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I know this group is about Nixies, but I also know that a lot of people
here like Dekatrons.
I just found this Swedish advertisment for the Mullard Z302C dekatron, the
text in Swedish and English follows below. Have a look here if you want to
see the extra transfer electrode this dekatron
Seems to be same tubes that have already been discussed here:
https://groups.google.com/forum/#!topic/neonixie-l/4th6YuVCRnA , same
seller at least and the same looking rust on the pins on the leftmost
Nixie, just looks like new photos.
/Martin
On Monday, 24 February 2020 02:58:27 UTC+1, Jeff
Nice!
Your writeup has convinced me to try KiCad again!
/Martin
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Just use Google and look for NL5441A and check the photos, you'll see that
the seller is offering the same tubes or at least the same photos are used
for some (of his?) auctions on many sales sites all over the world, and a
few of them in China.
I just think that he wants to make some money,
And the rust on at lest one tube.
/Martin
On Thursday, 6 February 2020 06:21:40 UTC+1, Jeff Walton wrote:
>
> Well used, too! Check out the silvering.
>
> Jeff
>
>
> Original message
> From: Nicholas Stock >
> Date: 2/5/20 10:47 PM (GMT-06:00)
> To: 'Greg P' via
ay.com/ws/eBayISAPI.dll?ViewItemVersion=114095878162
>
> On Monday, February 3, 2020 at 6:05:40 AM UTC-5, Dekatron42 wrote:
>>
>> Have a look here: https://www.ebay.com/itm/114095878162?ul_noapp=true
>>
>> /Martin
>>
>
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Have a look here: https://www.ebay.com/itm/114095878162?ul_noapp=true
/Martin
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Edge-Lit displays.
/Martin
On Monday, 3 February 2020 09:03:04 UTC+1, Nixcited delighted wrote:
>
> Are the two displays nixies or edge-lit dotty jobbies?
>
> John S
>
>
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Compared to prices for a few dollars each on Chinese websites this is quite a
price hike!
/Martin
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Nice with all these new photos! A real goldmine!
A lot of museums around the world are digitizing their collections nowadays so
I sometimes go for a hunt with Google to see if something nice pops up.
/Martin
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Found these while Googling.
https://berlin.museum-digital.de/index.php?t=objekt=57451
https://berlin.museum-digital.de/index.php?t=objekt=57450
https://berlin.museum-digital.de/index.php?t=objekt=57448
https://berlin.museum-digital.de/index.php?t=objekt=57449
Thank you Dieter for explaining! I have a few contacts that I can ask about
some details if I know more, but since most of the contacts are well over 80
years old and some well over 90 years old they have asked me to only ask about
specific information rather than a bunch of information. So if
Ok, so what data/information do you have so far on them, care to share that?
It might help to know what's available so I can try to ask contacts if they
know anything in regards to what's available.
/Martin
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Are you sure these are actual products or are they just guesses because the
numbers are missing in between other known Nixies?
It would be good to know before I go hunting for information.
/Martin
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I made a 5*7 and a 6*8 prototype design like this some years back but
decided not to go ahead and make more of it as it became so large and heavy
even with the Dekatrons stacked side by side, I wouldn't have anywhere to
hang it in my apartment. I used both A-101 and GS10C in separate designs
https://www.ebay.com/itm/GR10J-F-Giant-Vintage-Hivac-Nixie-Tube-lot-of-5-pieces/124032210079?hash=item1ce0e5549f:g:QgcAAOSwhBFeDzxl
Not my auction and so on
/Martin
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It’s probably a crystal.
/Martin
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To view this discussion on the web,
This isn't exactly what you are looking for but it is about the SP-3/7XX
and SP-15X series, not just the few pages usually found under that name but
the whole catalogue!
http://www.waynekirkwood.com/images/pdf/Sperry_Information_Displays_Catalog_1973.pdf
/Martin
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I have several of different brands and models which show exactly the same
weak anode.
I've successfully recovered displays for the HP34401a and other HP
instruments in the same series by running the filaments just a little dark
red hot - there is a lot of information on this, just Google it.
Thanks!
That was a nice way of getting greater creepage distance.
I'll see what can be done with the original solder lug sockets that I have
for these.
/Martin
On Monday, 16 December 2019 00:32:11 UTC+1, nixiebunny wrote:
>
> Martin,
>
> Here is how I cut the tube socket pins to fit in PC
C
> boards. I used a trick of trimming the solder ring longer on one side and
> shorter on the other side, to convert these sockets to fit in a PC board. I
> made a custom pattern with a slight angular offset to handle this.
>
>
> On Sun, Dec 15, 2019, 11:39 AM Dekatron42 > wrote
Hi all,
I am trying to discern what distance is really necessary for a B27A & B26A
sockets when they should be made with Nixie-pins on a PCB, the B27A pin
socket is used for GSA10G and the B26A is used for Burroughs BX-1000 series
of tubes.
The original PCB mounting socket that I've seen have
gt; new
> shop is finished soon, I will not do any updates at the old one.
> Dieter
>
>
> - Original Message -
> From: Dekatron42
> To: neonixie-l
> Sent: Sunday, December 08, 2019 4:07 PM
> Subject: Re: [neonixie-l] Russian Pandicon prototype
>
>
>
Your "i...@nocrotec.com" address - checked your webshop just now and the
"contact" and "email" shortcuts don't work in Firefox latest version nor in
IE.
/Martin
On Sunday, 8 December 2019 14:03:45 UTC+1, Nocrotec wrote:
>
> Hi!
> What address did you use?
> Dieter
>
--
You received this
@Dieter, my emails, and also some friends emails, don't seem to reach you
so maybe you should check your spam-filter too or provide a second email to
reach you at?
/Martin
@Jens, looks like my e-mails do not reach you. Can you check your
> spamfilter?
> Have a good one
> Dieter
>
--
You
Nice that you have a 22 output version planned!
Any information on its footprint yet?
/Martin
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Nice!
There's only one thing I wish you could add since you have unused outputs
on the 595's - add transistors for those outputs too so a B5971 or a Nixie
with decimal points can be used. The footprint would have to be changed of
course but for those who want these extras maybe that wouldn't
At 9.28 or so there are some nice dekatron counters shown quickly, looks
like Philips equipment on the top unit but the others are not clear enough
and I can only see "LABGEAR" on the front of three of them.
/Martin
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Did you replace all of the small green tantalum capacitors too? I've had a
few that acted as shorts more or less and some that went up in smoke.
Did you place all of the electrolytics with the right polarity? Swapping
plus and minus sometimes will result in excessive current draw if they cook
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