I recently found a few CD27 that work, but the glass tube seems to be loose
in the black plastic base that contains the pins. Does anyone have any tips
for how to secure the two pieces together? I don't want to risk damaging
the tube with something that would generate heat or other stress on
Well one just sold in Japan for ~$140 USD:
https://page.auctions.yahoo.co.jp/jp/auction/l1131610501
On Sunday, April 14, 2024 at 6:18:18 AM UTC-4 insidiousnixies;Utube wrote:
> When I put in search for cd12--the GR201(CD11) comes up...is that the same
> tube you have
> On Sunday, April 14,
Beautiful tube! Would absolutely be interested in trading other rare tubes
for one, if someone has an extra few lying around ;)
On Monday, April 1, 2024 at 9:40:42 AM UTC-4 blkadder wrote:
> Are these still being produced?
>
> On Monday, April 1, 2024 at 3:31:14 AM UTC-4 xuhui zeng wrote:
>
>>
parallel another fairly high
R resistor across the existing ones for that tube to up the drive.
Certainly no multiplexing going on here!
Are you certain they are not socketed? Looks odd with the wires
disappearing into the material like that.
Best of luck!
- Alex
On Wednesday, 15 November 2023
;>>>
>>>> I really like that he has a proper pin base, looks somewhat like it
>>>> comes from a Compactron.
>>>>
>>>> /Martin
>>>>
>>>> On Monday, 7 June 2021 at 18:39:35 UTC+2 alex nolan wrote:
>>>>
>>&g
I have purchased from them as well - no issues even with the international
shipping.
Surprised to see this tube go at 1,340.00 EUR, a good deal based on
previous CD47 auctions I've seen in the last two years (given that I've
only seen 4 or 6 sold?).
On Tuesday, October 25, 2022 at 3:53:47 AM
://groups.google.com/g/neonixie-l/c/VuwJfOjuEgk
Regards
Alex
> On Jul 15, 2022, at 8:02 AM, J Forbes wrote:
>
> USB to serial port adapters exist. Some of them actually work, so check
> reviews before getting one.
>
>
> On Thursday, July 14, 2022 at 8:00:33 PM UTC-7 Terry S wro
my suggestion is to check that the new GPS puck be set to issue the $GPRMC
sentence, and 4800 baud, 8 bits, no parity. factory defaults issue a much
more long $sentence... hope this helps
Alex
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My vote is that this is not designed as a display device, the business end
looks like it has ceramic donuts around it, possibly for heat dissipation,
so it could a source device (high freq signal / microwave). Could be a
Beryllium window at the end so could even be an X-Ray emitter but the rest
I get the feeling I have a very similar crt in my collection, but I also
think I mentioned this a while back on here, have you posted already about
this? I think mine is either Toshiba or Panasonic and was a unit often used
in T kit, Tektronix protocol analysers come to mind? I had mine running
Congrats Bill, I was interested in those LC-631 too, they're fantastic
tubes and different enough from the ZM1040 to be really special (and of
course much more rare). Surprised to hear about finding NIB NL5440As, I
hope you got them for a reasonable price. It's crazy what the NL5540A/1As
are
pay for tubes, but I also have several of these
tubes available for trade if interested: B7971, LC-631, NL-5441, ZM1040,
ZM1042, GR10J/F, Z568M
Cheers,
Alex
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I would love to see the large scrolling sign I guess those panels were
destined for? Seen a few of the 7 segment IN-28 arrays on eBay but not a
7x8 before...
Ships from Kiev, Ukraine - possibly a risky thing for anyone to buy right
at the minute maybe, based on media speculation?!
On
well as
schematics... The PDF does not really do them justice though
Thanks again and all the best,
- Alex
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todays world, sadly...)
- Alex
On Friday, 6 August 2021 at 05:36:07 UTC+1 threeneurons wrote:
> I designed my "Dekatron DoHickie" over 10 years ago. It uses a AVR Tiny24
> microcontroller, to sample analog data, thru its ADC, then send a
> appropriate number of pulses to a dekatr
Crikey, that is a bit of work, a very tidy and a neat solution!
I think I would be tempted to do a linearising, buffering and driver stage
for each tube that takes in an analogue input from a DAC which then just
sweeps across with a DG type multiplex switch IC to each tube driver, that
would
Hi Paul,
Can I ask what electronics you used for these? Was it completely custom or
something bought in? I know I have a case of in13 somewhere (and many cases
of in9) so should plan something with them and this looks very nice!
Cheers, Alex
>>
>>
>>
>>
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It looks like another person is developing their own nixie tubes:
https://twitter.com/SaduduH/status/1401888977037119490. Pretty impressive
stuff!
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I suspect I can't really add anything but I have taken a few medical HV
bits apart before and that kilovac looks to me like a high voltage relay /
trigger tube and the transformer looks like a pulse transformer, usually
for adding a spike of voltage to a pedestal / stored charge by being wired
not for having them on my watchlist, I
> would not be able to find them.
>
> On Tuesday, April 6, 2021 at 3:05:40 PM UTC-4 Alex wrote:
>
>> eBay makes it hard to pause a listing, though you can set qty to zero in
>> reality, though people don't know that (you need to set up z
I suspect that's the old "hmm, last lot, better count to make sure I do
still have 100 available, in the meantime add 1k to it to stop anyone
buying it". eBay makes it hard to pause a listing, though you can set qty
to zero in reality, though people don't know that (you need to set up zero
qty
) may be too sharp for it? I think your full wave design is
probably best anyhow, the half wave was likely a cost compremise!
- Alex
On Friday, 12 February 2021 at 20:08:35 UTC bung...@gmail.com wrote:
> I tried Rk at 12k and 22k and it is still erratic.
> Next I went back to ful
No expert by any means, but according to
https://frank.pocnet.net/brand.html WF is listed as "RFT Werk für
Fernsehelektronik". It seems to be a subsidiary or branch of RFT of some
kind.
On Tuesday, January 19, 2021 at 2:55:35 AM UTC-5 ZY wrote:
> Apologies for not being a nixie tube here, but
Crt monitors are getting very collectable, especially Sony Trinitrons. I
used to pick pvm monitors up for free from a recycling place and made a
wall of them at the back of my workshop. Cleared most of them on eBay last
few years, most for over 200gbp each... Even good Trinitron pc monitors are
I would suggest that these were never actually used as clocks, due to their
somewhat homebrew look. I suggest they were weighbridge / scale displays
which may of been constructed to give a large readout, driven from the aux
port on a scale unit. Would make sense for a postal service to have
Absolutely stunning, thanks for sharing (and do let us know if you are
ultimately planning on selling it)!
On Monday, December 14, 2020 at 2:19:41 AM UTC-5 ai...@omnixie.com wrote:
> Thank you for posting the photos, Wo!
> That's absolutely a piece of art!
>
>
> On Saturday, December 12, 2020
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?
On Friday, 11 December 2020 at 22:53:58 UTC Paolo Cravero wrote:
> Hi.
> I bought that kit and have the
Does this have any sort of animation / effects available as having a split
flap display font but with no rollover is just tragic!
Seem fairly cheap on aliexpress atm what with black friday and all that
entails...
On Wednesday, 25 November 2020 at 12:10:47 UTC Richard Scales wrote:
> Oh well,
During my daily spelunking for Nixie tubes, I saw that the person working
on making the JP47 seems to be selling 2 prototype tubes.
Not a cheap tube, but compared to CD47s it seems more reasonable.
https://ostatni.bazos.cz/inzerat/127934439/prototypy-obrich-digitronu-jp47.php
--
You
"New from old stock"!!!
This looks very much like a hobbyist effort, specifically as the pcb which
is clearly a perminent marker and etch job...
I am sure the original maker of it though would be astounded of the price
being asked for it!
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For the somewhat wealthy historically minded collector...
On Monday, 28 September 2020 at 06:17:33 UTC+1 Dekatron42 wrote:
> Check out this auction:
>
>
>
surplus / scrap that are vaguely similar to this.
That said it could be a diathermy but there was many random quackish
machines like this over the early years. Does it have a footpedal?
- Alex
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The pixel mapping on that is really quite odd, 3 tubes in all arms except
the lower two bars where it is 4... Wonder what the logic was behind that?
Seem to recall someone on here bought a clock with a few of these boards in
not too long ago?
Nice find, thanks for sharing.
On Sunday, 2 August
results and I look forward to your future work / tube
designs!
- Alex
On Tuesday, 21 July 2020 13:37:02 UTC+1, Dalibor wrote:
>
> Hi!
>
> I am sending the photos from the Hg-free and Hg-doped comparison test.
> There are photos for each cathode in the Dropbox directory, "before&
I am not sure about Switzerland as it may have its own regulations being as
it is not in the EU (and I am sure the UK will soon start to drift on this
also) but generally "over here" you need to meet the EN or whatever (BSI?)
standard for the device type and mark your device with the CE mark if
These would be interesting to see...
On Friday, 17 July 2020 09:25:10 UTC+1, Terry Kennedy wrote:
>
>
>
> I have some large Soviet VFD panels which are allegedly intended for a
> submarine - parts of the display look like ballast tanks. But they could
> also be separator drums from a later RBMK
Seconded on the Metcal MX500, they were on another level to conventional
soldering irons but the gap has narrowed considerably in recent years, but
the sub 8 second warm up still amazes me. I have a couple of TCP irons as
well for dragging on site and vehicle / panel work etc.
On Monday, 1
I've been lucky enough to purchase some LC-631 for my collection over the
years. They're not the most expensive tubes I own, but they're definitely
at the top in terms of rarity. It's a shame Meratronik didn't use LC-631
instead of Z566M, which are now abundantly sold after being removed from
; Hope everyone is safe and healthy and enjoying indoor neon!!
>
> Cheers,
>
> Pharma Nick
>
> Sent from my iPhone
>
> On May 21, 2020, at 08:45, fax_awd >
> wrote:
>
>
> https://www.ebay.com/itm/114230145538 same seller
>
> alex nolan於 2020年5月21日星期四
For what it's worth, this CD-27 popped back up on ebay recently too, it's a
steal compared to that NL7094:
https://www.ebay.com/itm/RODAN-CD27-NIXIE-tube-OKAYA-CD-27-geant-numeric-indicator-tube/114230143560
(not my listing)
On Thursday, May 21, 2020 at 11:30:09 AM UTC-4, alex nolan wrote
Ah, I was wondering when that NL7094 listing would pop up again. Looks like
the seller found another rare tube, but this one is untested unfortunately.
On Thursday, May 21, 2020 at 11:22:12 AM UTC-4, Dekatron42 wrote:
>
>
>
I just received some high-value (at least to me) nixie tubes that have mild
silver patches on the glass. It's not really obscuring the numerals, but
there is a bit of partial blocking.
Is there any way to mitigate or remove the silver patches? If not, are
there any best practices I can follow
Here in the UK (Hampshire) my mains often sat around 245v...
Naughty really as the limit is supposed to be +6%/-10% on 230v...
On Monday, 27 April 2020 17:56:53 UTC+1, David Pye wrote:
>
> Curious - which country are you in with 240v mains?
>
>
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Well, I was hoping to get another NL-7094 to get a two digit clock going,
but certainly not at this price: https://www.ebay.com/itm/254522682842.
What do you all think? The seller seemingly isn't even guaranteeing it
works.
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Be careful with the Meanwell LED Constant Current supplies, we used a boat
load (literally - it was a complete lighting refit on some gigantic yacht)
of them driving series strings of various lengths of 350mA bare LED dies in
posh housings. They worked fine and would easily put out >300VDC at
Semi-related, has anyone seen which pins are broken on these two Z568Ms
https://www.ebay.com/itm/264631955272?ul_noapp=true ? By my count
the left tube is missing the numbers 2, 3, 6, 7, 8, and 9 and the right
tube is missing the number 2, which makes them quite hard to use.
On Wednesday,
Just lost an auction on 2 Rodan CD42 nixie tubes, they wound up selling for
roughly 720 USD total:
https://page.auctions.yahoo.co.jp/jp/auction/g402731502
Interesting tubes, they seem to only display the numbers 0-5 but are quite
large!
(Sidenote: If anyone has any large Rodan nixies they
Which model of CRT tube is that, as it is a nice size?
For that matter, what commonly available tubes had P12 phosphors as it is a
very pleasing colour (probably why it was used in later computer terminal
dispplays I guess...)
I do like the sharpness of the numerals on that clock, very cool.
, 27 January 2020 20:20:29 UTC, Terry Bowman wrote:
>
>
> > On Jan 25, 2020, at 6:45 PM, Alex >
> wrote:
> >
> > Watchcounter.com will render an item url with versioning flag too, which
> works well
>
> I'm getting this:
>
> watchcounter.com
> i
Yeah, that eBay bug is really annoying but it can be gotten around with some
url fiddling ... Looks like you paid 475 usd for them if my fiddling is
correct, so yeah, as you said.
Thing to look for is that on sold item list from seller it will show item price
with strike through (but no real
Thats PLC Center / Radwell - they have been around for aeons, used to be
mail order with huge catalogues listing buy / sell / repair prices for
every bit of industrial automation / PLC / computer part (they buy surplus
stores from companies). They were always very expensive as they relied on
Maybe people thought that the NL-9XX series was for large tubes e.g. the
NL-934?
On Friday, November 29, 2019 at 5:19:43 PM UTC-5, Pramanicin wrote:
>
>
> https://www.ebay.com/itm/5-National-NL-900-Nixie-Numeric-Display-Tubes-Clean-Used-L-K-like-NL-841/264542801859
>
> Currently at $396...
>
>
seen the
smaller types with the two colour elements in them?
- Alex
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Hi All,
I was grazing on some old Tomorrows World footage on the tube (A brilliant
staple BBC show that showcased futuristic technology developments) and
watched this very odd 13 minute somewhat non sequitur video which I think
will be of interest to display technology folk:
stuff
back to you at the end of its life.
As an aside, bespoke items dont need testing nearly as much / at all - so
"Custom made to order" is a good get out for low volume / Etsy kind of
things.
Just wait for the kitemark to come back what with brexit...
- Alex
On Friday, 1 N
That price is the most surprising thing about this build! Wow, Paul, that's
quite lucky!
On Thursday, October 3, 2019 at 3:13:14 PM UTC-4, Paul Andrews wrote:
>
> It took me a couple of years to find the tubes. I got them for a bit less
> than the price of R|Z568 tubes.
>
> I hear you about
Looks fantastic, Bill. I've been growing more appreciation for original
boxes, that was quite the catch!
On Saturday, September 28, 2019 at 7:45:24 PM UTC-4, Bill Notfaded wrote:
>
> This isn't that mystery tube but that NL-934 I got a little while ago with
> good quality original box.
>
>
Really nice and clean, I like it!
Just noticed your email too, glad to see great work is still coming out of
my alma mater. What's the good word? :)
On Saturday, September 28, 2019 at 11:33:51 AM UTC-4, Mahdi Al Husseini
wrote:
>
> Hi, everyone,
>
> I developed this reverse polish notation
Yeah, Michael, I'd be glad to pay what you think they're worth. I
particularly like the look of these tubes.
On Friday, September 27, 2019 at 11:32:37 PM UTC-4, MichaelB wrote:
>
> And it is not that pretty a tube. In fact, its sorta butt ugly! I have a
> few, but certainly do not consider them
Did anyone win this auction? I got outbid unfortunately.
I believe it's an NL7037 or NL934, pretty nice tube if it works.
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I am trying to get my head around that, but I see the diagram you mention:
"If the filament potential is lower than the anode and grid cut off
voltage, thermionic electrons can reach the anode and cause illumination of
the phosphor. The filament
bias voltage should be increased to prevent this
Oddly that seller wont ship to the UK, along with a couple of other
countries:
"Excludes: Russian Federation, Belarus, Moldova, Ukraine, United Kingdom"
Has Brexit really made things that bad?!
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I agree with Greg, the voltage WRT Gnd is important for brightness (as its
what gives the electrons the incentive to move in the first place). Series
connected filaments on individual tube VFDs will give you a nice
demonstration of the same aformentioned problems with linearity of
brightness
Also selling 6x NL-842, 5 of which have the original boxes, with 2 sockets
included.
On Saturday, September 7, 2019 at 12:58:41 PM UTC-4, alex nolan wrote:
>
> Trying to pare down my collection a bit.
>
> I'm selling:
>
>- 11x NL-6844A in original JAN military packaging
Trying to pare down my collection a bit.
I'm selling:
- 11x NL-6844A in original JAN military packaging
- 1x NL-6844A in original National packaging
- 18x NL-5441 in original JAN military packaging
- 16x ZM1040 with red coating flaking off
Please feel free to make reasonable offers
Please share the display when you complete it, it sounds pretty interesting!
I could probably source you a broken Z568M, if I can find it. Used to have
a broken B-7037 too, but luckily I got my money back for that one.
On Thursday, July 11, 2019 at 5:23:05 PM UTC-4, gregebert wrote:
>
> If any
I think it says "Вольтметр универсальный В7-16" at the top. If you google
that, you can find some webpages with more info.
I do like the look of these multimeters, but the biggest challenge for
using them for me would be the 220V input
On Wednesday, July 10, 2019 at 5:49:05 PM UTC-4, Terry
Wow Bill, how long ago was that?
On Monday, July 1, 2019 at 1:18:16 PM UTC-4, Bill Notfaded wrote:
>
> My most recent story like that was the NL-934 for $44.45.
>
> Bill
>
> On Friday, June 28, 2019 at 9:04:19 AM UTC-7, Bill Notfaded wrote:
>>
>> I like this story Jonathan... really nice finding
Has anyone gotten insurance for their nixie tube collection?
I've started accumulating quite the collection of items and am a bit
astounded at how much it all adds up to. And some items are pretty rare,
even if I spent $x, it might cost $5x to get another one.
Cheers,
Alex
--
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experience. I tend
to just plump for listing at about 25% more than I realisticly would expect
something to sell for and enable best offer and see what happens.
Money for old rope in those units though, he should for sure do it as an
auction, especially if he has 5 of the things?
- Alex
On Friday
displays in them. The best part,
they were socketed :-) I was going to make either a model sized scrolling
LED sign or some mini 4 letter word cubes with them, the red led pixel
displays have an excellent contrast.
- Alex
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Still no luck getting it to light with a power supply though. I've varied
through voltages from 170V to 230V. Anyone have any suggestions?
On Saturday, June 1, 2019 at 7:59:48 AM UTC-4, alex nolan wrote:
>
> I got this from Jan, in fact.
>
> I'll get a neon testing wand (or a plasma glo
I got this from Jan, in fact.
I'll get a neon testing wand (or a plasma globe) and test if they are
outgassed.
Jan mentioned they were poisoned, so I was operating on that assumption,
but if they are indeed outgassed that will be quite unfortunate.
On Friday, May 31, 2019 at 8:04:25 AM
ZM 1350, in this case
On Thursday, May 30, 2019 at 9:43:59 PM UTC-4, Jens Boos wrote:
>
> What kind of tube is it?
>
> Cheers
> Jens
>
> On 2019-05-30 7:39 p.m., alex nolan wrote:
>
> Has anyone had any success restoring a nixie tube which does not want to
> light
Has anyone had any success restoring a nixie tube which does not want to
light up? I don't think the tube has degassed, could it just be severe
poisoning? If so, what's the best way to restore it?
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I may have found a private selling willing to part with some NL7037. How much
should I offer to buy them for? I haven't found many recent prices. Would Z568M
prices be analogous?
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For what it's worth, the seller countered my fair price offer with an offer
of $750.00, much more reasonable /s
On Sunday, May 12, 2019 at 10:14:45 AM UTC-4, Greg P wrote:
>
> Seller must have had a change of heart after all the chatter circling the
> web on this topic. He's now lowered them
What are people doing with loose tubes in their collections? I've been
wrapping mine in bubble wrap but have been wanting to start putting them in
tube boxes designed to hold them.
Does anyone know where I can buy tube boxes for relatively cheap?
Thanks
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Found 3 GR10G and 3 GR10J on ebay in German, the listing says they will
ship to the US.
Not my listing, but thought they were interesting tubes and a bit rare:
GR10G:
https://www.ebay.com/itm/Nixie-Rohren-Numicator-GR10G-Anzeigerohre-Nixieuhr-keine-ZM-EM-Magischesauge/163660436801
GR10J:
Just saw this myself. It's such a wonderful looking tube, but what a crazy
price...
On Sunday, April 28, 2019 at 9:01:50 AM UTC-4, Bill Notfaded wrote:
>
> Is you can find enough a clock will cost you almost 8 grand...
>
>
>
I'm really interested as well, please DM me :)
Alex
On Tuesday, April 23, 2019 at 9:55:32 PM UTC-4, martin martin wrote:
>
> There I was looking for some lost vacuum tubes to sell on the Bay and I
> found this box under my desk! I used to consult for an aerospace company
> and the
Where do you usually find mixed boxes sales? Trying to get into the hobby
more seriously myself :)
- Alex
On Monday, April 22, 2019 at 8:06:07 AM UTC-4, Paul Andrews wrote:
>
> Mixed boxes are always the best. I have quite a few tubes that I have not
> seen anywhere else through buy
Jonathan,
That's rather exciting. I'd request that the website would be easily backed
up by any user who wanted to, but downloading an archive or something.
On Sunday, April 21, 2019 at 5:16:28 PM UTC-4, SWISSNIXIE - Jonathan F.
wrote:
>
> Hi Jens,
>
> Nice to hear! I already made a concept
in film and TV, stitched to match real
time. Quite a feat.
https://www.theguardian.com/artanddesign/2018/sep/10/christian-marclay-the-clock-tate-modern-london
- Alex
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This is a nixie tube, specifically a B-5441. It looks like there is some
trouble getting the cathodes to fully light and it is missing the blue haze
around numerals that other B-5441s seem to have.
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Hey all,
Has anyone seen a tube with the inner glass covered in silver spots inside
the tube? What does this mean and is it repairable like cathode poisoning?
Thanks!
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taller and slimmer than other B13B
> socket tubes and they come with a smooth top.
>
> W dniu sobota, 6 kwietnia 2019 19:19:30 UTC+2 użytkownik alex nolan
> napisał:
>>
>> Does anyone have any leads (or is willing to sell) nixie tubes with
>> smooth tops? I am looking
PM UTC-4, Jens Boos wrote:
>
> Perhaps this is too obvious, but what about the ZM1040/ZM1042? Jens
>
> On 2019-04-06 11:19 a.m., alex nolan wrote:
>
> Does anyone have any leads (or is willing to sell) nixie tubes with smooth
> tops? I am looking for tubes in the same f
Does anyone have any leads (or is willing to sell) nixie tubes with smooth
tops? I am looking for tubes in the same form as IN-18 but want something
other than an IN-18.
I know about tubes like NL-900, NL-5440A, or B-5441A, but I haven't found
any listings for them in particular, would be open
Does anybody know what symbols these B-54364 tubes show, I cant find any
info online for them at all?
Dangerous game, offering free tubes on a collectors forum, like walking
into an AA meeting with a crate of beer... :-)
On Sunday, 24 March 2019 15:46:37 UTC, martin martin wrote:
>
> yes
>
A cheaper resource of similar things would be from Fruit Machines - I have
had a few of the (very common in UK) Barcrest Genesis based units which
lurk in the corner of most pubs and take a way shops. They use a central
modular electronic controller with a plug in rom cartridge for the game
This is great, and to us UK folk looks especially nostalgic, mainly thanks
to the fuel price. A US gallon of petrol in the UK would be around $6.50 by
my calculation...
Lovely ride, have fun!
On Friday, 26 October 2018 01:24:34 UTC+1, nixiebunny wrote:
>
> My brother Jim and I are driving
ic on here, listing his updated quantities and prices of indicating
devices, once a fortnight or month maybe. That would do and would not be
OTT. No direct mailing.
Regards,
- Alex
On Sunday, 30 September 2018 15:15:02 UTC+1, redrok wrote:
>
>
>
> On Saturday, September 29, 2018 at 9:47
Yeah, all the kit was working before being parted out... It is a 10 pin
connector, as seen in the pic - I have had similar CRT control boards
before too, often just with wires soldered to the PCB edge connector pads.
I guess they must of become fairly standardised towards the end of the CRT
Interesting, eBay has forced me to accept paypal as a method for being paid
for as long as I can remember? I wonder if this is a German eBay feature?
Trying to get top dollar (reserve not met) for a nixie tube and not even
bothering to test it is not really playing the game in my opinion.
On
I have looked at those a few times but I have never worked out if you can
turn off the underscore lines shown on that video...
Mind you, I salvage displays from loads of scrap kit and have a collection
now that will see me through my lifetime. Have a couple of low use large
planar 400x600
package is that by the way?
- Alex
On Thursday, 5 October 2017 17:28:24 UTC+1, Robert L wrote:
>
> Thanks Greg... Good points...
>
> The circuit is intended to be installed internal to a housed device, but
> ESD definitely an issue prior to and during installation. Adding belt and
>
Why is there a slot down the base of them? It looks too rough to be
original and shows some chipping on the Bakelite...
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Indeed, I found they worked far better with un-smoothed 50Hz rectified
current limited mains from a variac - putting a cap after the rectifier so
they had smooth(er) DC made them unreliable.
Nice to know this also works with square wave pulsed DC.
On Saturday, 29 April 2017 05:17:44 UTC+1,
That is brilliant, I love the more mechatronic approach used on these
machines! Thanks for the link!
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