TpvsZabE
I found this listed in Amperex_Electron_Tubes_and_Semiconductors_1958
catalog on pp22, 23:
https://archive.org/details/Amperex_Electron_Tubes_and_Semiconductors_1958
Cheers,
Jon D.
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Well, my bad then. I actually have a few of these somewhere that I know
work, but I never noticed them looking like these. My apologies to the
group. And thanks for all of the quick feedback !!
On Friday, March 1, 2024 at 10:06:06 AM UTC-7 Jeff Walton wrote:
> Hi Jon,
>
> Actuall
" !!!
So those two Nixie clocks were the big challenges of the weekend and are
now on the new network. Again, thanks to Carl for pointing out the CLRNET
mode for the MOD-SIX Lumina to close out this thread !!
Cheers,
Jon J.
On Saturday, February 17, 2024 at 5:55:06 PM UTC-7 Jon D. wrote:
> I
Lumina using my phone, but my
phone shows the MOD-SIX "network" as "disconnected". Something is amiss.
Is there a trick to doing this ??
Jon J.
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a couple of Niximatrix kits
without getting into a major reorder. Don't think I've got any of the
acrylic front and back panels lying around, but that should just be a
matter of getting some lasered up if needed.
Jon.
On Tuesday, January 9, 2024 at 7:20:17 PM UTC Nicholas Stock wrote
mapped displays on 8 bit micros in the early 80s! :)
Jon.
On Tuesday, January 9, 2024 at 5:03:52 AM UTC Richard Scales wrote:
> @ David - that is an interesting idea - I did that already in another
> design where I wanted to reduce the workload on an ESP8266 so I used a
> Teensy
Just sent you an email.
On Thu, Nov 30, 2023 at 8:17 AM John wrote:
> This is a nice original condition meter that works... no additional holes,
> etc. Built like a tank for it's small size. Heath didn't spare any money on
> the enclosure.
>
> $20 plus actual shipping. * I use Pirate Ship for
, but that should be immaterial in most circumstances.
Jon.
On Thursday, November 30, 2023 at 3:27:11 AM UTC gregebert wrote:
> UV light source, such as from an LED ?
>
> On Wednesday, November 29, 2023 at 6:43:48 PM UTC-8 Jeff Walton wrote:
>
>> I've recently come across a situ
FYI
-- Forwarded message -
From: Krispy Kreme
Date: Sun, Nov 12, 2023 at 4:37 AM
Subject: World Kindness Day = 12 FREE doughnuts to share!
To:
Spread joy & kindness tomorrow!
Oh, probably not since I misread SP-252 as SP-352. Apologies !!
On Sat, Nov 4, 2023 at 7:04 AM Jon Jackson wrote:
> Don't know if this will help:
> Sperry SP-352 and SP-332 Gas Discharge Clock Display pinouts from 1973
> catalog (attached).
>
>
> On Sat, Nov 4, 2023 at 3:04
>From my spreadsheet symbols should be E, K, M, R, Ω, ~, inverted ~, −, +
On Tue, Oct 24, 2023 at 3:57 AM Jeff Walton wrote:
> I ran across a Burroughs B-6032 that might be good for a collector. It
> partially functions at high voltage. Date Code 6425. I have not found a
> data sheet. I
>From a quick look at the application, yes. OG4 will be perfectly happy with
a 100Hz input.
Jon.
On Tuesday, September 19, 2023 at 6:01:43 PM UTC+1 neonixie-l wrote:
> Hello,
> I want to make a dekatron clock.
>
> I found some schematics on http://959radio.co.uk/dekatron.ht
Very reasonable, Sold !! Do I send the $40 to your usual Paypal account?
On Sat, Sep 2, 2023 at 4:12 PM Nicholas Stock wrote:
> $40 including shipping to you? I think that's reasonable given their
> rarity etc.
>
> Nick
>
> On Sat, Sep 2, 2023 at 2:22 PM Jon Jackson wrote
How much do you want for the 4?
Jon
On Sat, Sep 2, 2023 at 3:20 PM Nicholas Stock wrote:
> Anyone need any? I have 4 for sale.
>
> NIB.
>
> PM me if interested.
>
> Cheers,
>
> Nick
>
> --
> You received this message because you are subscribed to th
...
Jon.
On Tuesday, August 22, 2023 at 3:02:39 AM UTC+1 Nicholas Stock wrote:
> [image: 20230821_164810.jpg]
>
> Nick
>
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My spreadsheet says:
B-49989 = SK-176 socket -- characters V,R,A,T,Δ,C,G,L,N,S
Also, B-49990 = SK-176 socket -- characters W,H,E,C,Δ,T,U,B,D
Cheers
On Mon, Jul 24, 2023 at 7:31 PM Nicholas Stock wrote:
> Anyone know what letters this one displays? I have one here, but I can't
> locate a
Ah, that's the *other* ETL! Electronic Tubes Ltd of High Wycombe as opposed
to Ericsson Telephones Ltd of Beeston. It's the Ericsson ETL which makes
the nixies, dekatrons etc.
Thanks Martin!
Jon.
On Wednesday, May 31, 2023 at 12:25:52 PM UTC+1 Dekatron42 wrote:
> It does look like Paul
Paul, would you mind sharing the basis for your comment about the post-1957
Mullard/ETL connection? I've done a lot of work on ETL history (visited
what's left of their archives, talked to employees etc) and this is news to
me.
Thanks,
Jon.
On Tuesday, May 30, 2023 at 8:21:34 PM UTC+1 Paul
I can help, Nick - will PM you. Long-timers here will remember that almost
15 years ago now I did a lot of work on the ETL date code. Dekatrons were
my focus, but it's the same code used on all ETL tubes, including these
lovely nixies.
Jon.
On Tuesday, May 30, 2023 at 5:40:48 PM UTC+1 Nick
I'd expect this one to have Rodan DK23s
in it.
Jon.
On Thursday, May 4, 2023 at 11:45:14 PM UTC+1 Nick Andrews wrote:
> Okay not sure about US made but I guess I meant to say not Soviet, and
> theoretically then more reliable. I'll open it up this weekend and look.
> Need to try an
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
. But it wasn't marked like this and the glow colour is
neon orange not purple/pink.
Jon.
On Sunday, March 12, 2023 at 12:19:41 PM UTC padlernped...@gmail.com wrote:
> This article from industrialalchemy.org might offer an explanation. They
> could be these “transitional” GC10Bs.
>
@jörg,
No, I have not yet built anything. Just "scoping" out where this will take
me.
On Sat, Mar 4, 2023 at 5:14 AM jörg wrote:
> @Jon,
> yes, I will share the code. I have moved it to the VS Code IDE with
> PlatformIO. I do not like the Arduino IDE much. It should run on
Jörg,
Do you plan to release your design and code? I have a Teensy 4.0 I haven't
used yet and would be interested in what you did.
Jon
On Thursday, March 2, 2023 at 7:36:02 AM UTC-7 Paul Andrews wrote:
> That looks great
>
> On Thursday, March 2, 2023 at 9:17:42 AM UTC-5 j
I think it was only Ericsson that used that B26A base on nixies?
Jon.
On Wednesday, February 22, 2023 at 4:37:23 AM UTC Nicholas Stock wrote:
> Looks very much like that Ericsson lab sample Jens. What voltage did you
> test yours at? A quick plasma globe test didn't show any gas ionizati
on
dekatrons and related tubes, and there are scans floating around (can't
remember if we have one here). Are there specific tubes you want to
understand better?
Jon.
On Thursday, January 26, 2023 at 10:14:24 PM UTC Terry Bowman wrote:
>
> On Jan 26, 2023, at 4:48 PM, Benoit Tourret wrote:
&g
I think Laurence Wilkins' Cyclox design takes a lot of beating for a
classic one tube clock.
Jon.
On Friday, January 27, 2023 at 8:15:47 AM UTC Paolo Cravero wrote:
> Hello Zachary.
> I am more confident with electronics rather than case design. But once you
> master the electro
.
Having said all of that, there's always some eBay seller who'll put a $75+
price tag on a tatty 'untested' (but very likely dead) tube, and hope to
get a bite... But those usually don't sell. Never to me anyway :)
Jon.
On Friday, December 23, 2022 at 11:38:05 AM UTC jaspern...@gmail.com wrote:
>
of STC counting tubes, does anyone have a
working G10/240E (note different number) that they'd be interested to sell?
PM me if so!
Cheers,
Jon.
On Friday, December 23, 2022 at 2:11:26 AM UTC jaspern...@gmail.com wrote:
> thanks
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[image: image.png]
On Sat, Oct 8, 2022 at 6:48 PM Jon Jackson wrote:
> "⏦" U+23E6: Ac Current (Unicode Character):
>
> https://unicodeplus.com/U+23E6
>
>
>
>
>
> On Sat, Oct 8, 2022 at 3:47 PM Mac Doktor wrote:
>
>>
>> On Oct 8, 2022,
"⏦" U+23E6: Ac Current (Unicode Character):
https://unicodeplus.com/U+23E6
On Sat, Oct 8, 2022 at 3:47 PM Mac Doktor wrote:
>
> On Oct 8, 2022, at 5:19 PM, Terry Bowman wrote:
>
> Gorgeous. I'm jealous. 8D
>
>
> Follow up: everyone has the M1183 listed as having the characters "Ω, +,
> –,
Hear, hear... Well said Nick.
Jon.
On Friday, March 4, 2022 at 12:41:15 AM UTC Pramanicin wrote:
> Morton, very very sorry to hear that. Not sure what else to say. I'm sure
> everyone here on the list would join me in saying we wish the best for both
> yourself and John and your r
Looks very similar to the NL-989 over/under symbols tube which has A,K,M on
top and C,V, Ω on bottom. I can see an M on top and a V on bottom in the
photo, but I cannot tell if there are other characters in your NL-988 --
perhaps none.
On Saturday, February 26, 2022 at 10:07:48 AM UTC-7 Bill
, 8K2 cathode resistors)
It's quite an unusual design with relatively low anode and transfer
electrode voltages. If the anode voltage or current is too high, it's easy
to get multiple cathodes glowing instead of just one which can mess up the
stepping.
Jon.
On Wednesday, February 23, 2022 at 10
as a
starting point) and see if that helps?
They're funky tubes...
Jon.
On Wednesday, February 23, 2022 at 8:37:58 AM UTC Paolo Cravero wrote:
> Hello.
> I am stuck with a stubborn WE-6167 dekatron (
> http://www.tube-tester.com/sites/nixie/dat_arch/6167.pdf seems to be the
> o
Alexander - really interesting, thank you for sharing the photos. Does the
prototype tube have a date code on it?
Jon.
On Sunday, February 20, 2022 at 12:47:48 PM UTC krieg...@gmail.com wrote:
> [image: 123.jpg]
>
>
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Hi Terry,
I can help out with this, no problem. I'll PM you.
Jon.
On Tuesday, December 21, 2021 at 3:30:08 AM UTC Terry S wrote:
> Sorry -- the tube is a GS10C/S.
>
> On Monday, December 20, 2021 at 9:11:11 PM UTC-6 Terry S wrote:
>
>> I have a decatron clock I bought
is of course
totally on point for the heyday of the tubes...
Jon.
On Tuesday, October 19, 2021 at 3:10:17 PM UTC+1 peter@gmail.com wrote:
> Are there kits available? If so where can you purchase one?
>
> Thanks!
>
>
> On Tuesday, October 12, 2021 at 10:37:26 PM UTC-4 m
Neat design. Thanks for sharing Mike.
Jon.
On Thursday, September 16, 2021 at 6:13:51 PM UTC+1 Ira wrote:
> Also known as stairstep generators. Commonly used to step the base
> current, in such things as Tektronix transistor curve tracers, while the
> collector is being swept
I don't actually see any content here?
Jon.
On Wednesday, September 15, 2021 at 10:12:46 AM UTC+1 mikeselectricstuff
wrote:
> neoni...@googlegroups.com
>
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Paolo makes a great point! It'd be a cool extra talking point about the
item if it had indeed been made during those weird 3 years when the UK
government was running the time zone experiment.
Jon.
On Tuesday, August 31, 2021 at 10:43:08 AM UTC+1 Paolo Cravero wrote:
> Hi.
> Acc
The drawing of time zones onto the world map is a bit uh, approximate.
They've managed to exclude the UK from the GMT zone which is a pretty
foundational problem!
Jon.
On Tuesday, August 31, 2021 at 4:55:20 AM UTC+1 Terry Bowman wrote:
>
>
> On Aug 30, 2021, at 9:01 AM, Terry
Simply brilliant. Chapeau.
Jon.
On Tuesday, August 24, 2021 at 8:51:52 AM UTC+1 M1 wrote:
> Can’t find that it was posted here or not.
>
>
>
> Ron is at it again.
>
>
>
> https://www.youtube.com/watch?v=T6SUaZ8PLeI
>
>
>
>
>
> Mich
to make them look to the
circuit like GC10Bs. But from an electrical point of view I don't see any
reason why it would not work fine.
Jon.
On Friday, August 6, 2021 at 11:00:43 AM UTC+1 Richard Scales wrote:
> Thank you for that, I have some of your spinners already - I shall
> inves
Fantastic use of nixie
On Fri, Aug 13, 2021 at 1:49 AM newxito wrote:
> Great job, beautiful case!
>
> --
> 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
Welcome Rich!
Jon.
On Wednesday, August 4, 2021 at 7:56:35 PM UTC+1 Dekatron42 wrote:
> Hi,
>
> Welcome to the forum!
>
> /Martin
>
> On Wednesday, 4 August 2021 at 20:39:55 UTC+2 nice...@optonline.net wrote:
>
>> Hello everybody! I'd like to introduce myse
fer the red filter
option on their long life tubes (ie those with the mercury blue haze) and
they say: "amber or red tinted filters making Long Life Digitrons appear
identical with other Digitrons". For general contrast enhancement on all
tubes they recommend using a circular polarised
,
it's very difficult to match the price/performance/board economy of John's
work, so I've come to the conclusion that my time is better deployed
elsewhere :)
Jon.
On Monday, June 28, 2021 at 10:38:11 PM UTC+1 m.baad...@gmail.com wrote:
> Oh those also look very nice and price is decent! Altho
I bought one of these a few months back. Mine works great and keeps time
right in (relative) line with my GPS clocks.
On Thu, Jun 10, 2021 at 11:14 AM gregebert wrote:
> I took the bait today and bought the version with the assembled PCB. Total
> cost is $38.11 US including shipping. I cant
Alexa users beware...
OPT OUT !!! Amazon devices to automatically share your Internet with
neighbors_29-May-2021 | Ars Technica
https://arstechnica.com/gadgets/2021/05/amazon-devices-will-soon-automatically-share-your-internet-with-neighbors/
JJ1
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PCB and components only. If anyone is interested or has
questions, send me a private message so we don't clutter the group chat
with that stuff.
Jon.
>
>
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. And the octal
base tubes have a different pin-out (but that's a trivial change,
obviously).
Jon.
On Sunday, May 16, 2021 at 7:10:28 PM UTC+1 gregebert wrote:
> What speed are you running the dekatrons ?
>
> On Sunday, May 16, 2021 at 10:57:30 AM UTC-7 iavine wrote:
>
>> Tha
with such images, and in those you can see in
the background that they've only got two connections to the tube rather
than the 4 you would need to actually spin it properly. It's not a great
thing to do to the tube, though probably not going to cause any real damage
if it's only for a few seconds.
Jon
Copy that...
On Wed, May 5, 2021 at 2:42 PM Tidak Ada wrote:
> Oops, a typo.It is ZM1215 of course as the file name says.
> eric
> Verstuurd vanaf mijn iPhone
>
> Op 5 mei 2021 om 22:36 heeft Jon Jackson het
> volgende geschreven:
>
>
> is this a ZM1251 or ZM12
is this a ZM1251 or ZM1215 ?? You have conflicting info...
On Wed, May 5, 2021 at 2:29 PM Tom Harris wrote:
> Thanks for the ideas but it was definitely static with the pulses just
> used to turn the lamps on or off. After that they would keep their state
> indefinitely.
>
> Tom Harris
>
>
>
Mahdi,
I would be interested in a second DUSTOFF board for my daughter down the
street. I could send her simple greetings and updates.
Jon
On Wed, Apr 28, 2021 at 9:33 AM Peter Doroba wrote:
> Knock, knock. LOL
>
>
> On Monday, March 1, 2021 at 9:40:55 AM UTC-5 Peter
Beautiful photos Yan, and thank you for sharing the data. Does your
databook have any information on the Chinese dekatrons?
Jon.
On Thursday, April 15, 2021 at 5:02:43 AM UTC+1 Toby Thain wrote:
> On 2021-04-14 11:47 p.m., gregebert wrote:
> > I'm guessing this nixie tube
will be even more than you calculate.
Maybe that's how you get to 9W.
Ouch. Wouldn't bother putting that tube in a clock!
Jon.
On Wednesday, March 31, 2021 at 10:34:06 PM UTC+1 Paul Andrews wrote:
> You should calculate the anode resistor you need for one segment. Use
> that, then conne
These are from May 1970 and Feb 1971 I think.
Jon.
On Monday, March 15, 2021 at 7:53:44 PM UTC Robert wrote:
> I have two here, one branded RTC and one Mullard Holland, both have tags
> inside, one reads 9172 and the other 11482 with these codes
>
>
>
>
> On 15 Mar 2021,
to solder in and one to keep as a reserve!
They don't fail very often in a properly designed circuit.
Jon.
On Wednesday, March 3, 2021 at 7:18:30 AM UTC nonprof...@gmail.com wrote:
> IN14 have some original plastic spacer that you can buy easily.
>
> śr., 3 mar 2021 o 07:51 MrTh
>No, unfortunately not, no hard figures - maybe Jon has.
I've done a bit more digging in the literature on this topic, and found
basis for an operating life exceeding 100K hours for the ETL low speed
tubes if all the various pieces of advice on how to keep the tubes happy
are followed.
Very neat! Glad you got it all working.
Jon.
On Saturday, February 20, 2021 at 10:49:21 PM UTC newxito wrote:
> The little project is now working. It’s not the most exciting gadget of
> the world but at least I learned something about USB connectivity.
> When the PC goes to sleep or
have to get
closer to the datasheet spec. And maybe start with longer pulses. I'll PM
you on a couple of additional details.
Jon.
On Thursday, February 18, 2021 at 4:00:55 PM UTC bung...@gmail.com wrote:
> I found a reference:
> http://www.r-type.org/articles/art-132.htm
> that
Good to hear - another successful neon spinny thing!
Jon.
On Wednesday, February 17, 2021 at 10:55:59 PM UTC bung...@gmail.com wrote:
> I tried my new circuit with the optocouplers using 270k for R5 & R6 and 1k
> for R3 & R4.
> It works within the limits of +
going strong on
its original tubes after 120K hours - datasheet life is 1K hours.
Note that we're talking here about use-related life limitation - the death
in storage of the high-speed dekatrons is a whole different topic.
Jon.
On Tuesday, February 16, 2021 at 8:49:07 PM UTC Dekatron42 wrote
your power request or not.
Neat chip!
Jon.
On Wednesday, February 17, 2021 at 9:00:59 AM UTC newxito wrote:
> Nice clock!
> In my circuit, the USB data lines are not connected to the MCU. Actually,
> I expect that the negotiation will be done by the FT230X (USB to basic UART
> IC
and it works a treat. Not to say that other approaches aren't
equally useful too of course.
Jon.
On Monday, February 15, 2021 at 9:39:13 AM UTC Dekatron42 wrote:
> I'd raise the resistance to at least some 100k for the two bias resistors
> R5 & R6 in your diagram above.
>
&
down to the
'active' voltage. Most guide drive circuits use a NPN pull-down to the
active state which creates a sharp leading edge and then a slower return to
the inactive state.
Jon.
On Sunday, February 14, 2021 at 7:06:28 PM UTC bung...@gmail.com wrote:
> Having finished the Amperex 8
at lower anode voltages (not sure that'll work very well) or switch to a
mixture of logic and discrete components - something along the lines of a
7442 driving MPSA42 (you'll need an inverter between them).
The GR10A is the best option here I think - that should work fine with
74141.
Jon
own individual pins. So GS10C /
6476 / A101 for example rather than GC10B / 6802 / OG4.
There is actually a dekatron-lookalike, the GR10A, which is designed to be
used like this - it's essentially a GS10C without the guide electrodes
(different base, but that's a detail).
Jon.
On Saturday, February
the
1960s when it made nixies and dekatrons amongst other things. If you search
German Wikipedia there's quite some background covering origins and
evolution of the factory - Google Translate will help you out with the
language if needed (which needless to say it was for me!).
Jon.
On Tuesday
Is it the CO-Z 858D Rework Station ??
On Wed, Dec 30, 2020 at 11:35 AM gregebert wrote:
> Reviving this thread...
>
> I've spent some of the holiday season using hot-air soldering for
> surface-mount devices, and the results are far superior to hand-soldering.
> With good solder paste (I'm
Oh, a reference to "Black Mirror" bees...that was their best episode ever !!
On Sat, Dec 12, 2020 at 9:07 AM RikD wrote:
> Don't help him out, i know for a fact he's trying to raise an army of
> metal bees!
>
> (just kidding)
>
> These guys are in the EU, not sure that's any help?
>
Mahdi,
I am interested in getting one of your ZM1350 8-digit clocks. I have ten
or so ZM1350s. I especially like the idea of hosting a message on your web
site (I do not have one...yet) that I can modify by submitting text to.
Jon J.
On Wed, Dec 2, 2020 at 2:23 PM Mahdi Al Husseini
wrote
They're sweet little tubes, well worth having if you don't pay a fortune
for them. This page is an interesting tangent on the subject:
http://www.imajeenyus.com/vacuum/20101115_second_panaplex/index.shtml
Jon.
On Tuesday, November 17, 2020 at 9:09:52 PM UTC w...@kitsunegari.net wrote:
>
I believe it's worked... Thanks Grahame!
Jon.
On Monday, November 16, 2020 at 8:00:12 PM UTC Sgitheach wrote:
>
> Hi
> We "may" have turned on the "reply to sender" option within the group.
> Please let me know if it works or doesn't for you.
> Ta Grahame
>
Thanks Kevin, this is really interesting stuff!
Jon.
On Wednesday, November 11, 2020 at 9:03:43 PM UTC Kevin A. wrote:
> By the way, if you find the SMU instrument interesting, I wrote a detailed
> article about what it is, and how it is used:
> https://neonkev.com/2020/09/21/precis
Richard,
I would be interested in a few SP-353 boards and your design. I have 8 or
so SP-353s.
Jon D.
On Wednesday, November 11, 2020 at 3:17:32 AM UTC-7 Richard Scales wrote:
> Would anyone with SP-353's or even SP-352's be interested in a direct
> drive version of this clock using
instead of just
K0). It's what ETL call a 'computing tube' - partway between a counter and
a selector. ETL's analogous tubes are GC10/4B and GC10B.
Jon.
On Monday, November 9, 2020 at 11:28:40 AM UTC andrewodo...@gmail.com wrote:
> @Jon
>
> Really helpful thanks. This is new old stoc
to the 'old' format or
pick up your desired recipient's direct email address from the daily
cumulative email digest).
Jon.
On Monday, November 9, 2020 at 5:36:17 PM UTC Pramanicin wrote:
> Guys, please take the private deal making off of the list.
>
> Thanks
>
> -Moderators.
&g
cases that can be incurable.
It's more of a issue on the neon-filled tubes though than the
helium/hydrogen ones like your OG3 (there is no argon in there BTW, that's
an oft-repeated error).
Jon.
On Sunday, November 8, 2020 at 10:02:46 PM UTC andrewodo...@gmail.com wrote:
> Thanks for the t
It is redirecting for me.
On Fri, Nov 6, 2020 at 12:28 PM Max DN wrote:
> Aidan, the kickstarter link is not working any longer, at least for me. It
> seemed fine a few hours ago.
>
> Do you have any tests on efficiency at 3.7V li-on battery input and 170V
> 1mA / 2mA and 4mA?
>
> Would you
Whoops, forgot the link: https://www.ebay.com/itm/264926879110?ul_noapp=true
Getting a little pricey !!
On Friday, November 6, 2020 at 5:23:25 AM UTC-7 Jon D. wrote:
> Found an auction for 6 of these NOS/NIB on fleabay for $369.99
>
>
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Found an auction for 6 of these NOS/NIB on fleabay for $369.99
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To view
as hen's teeth now.
Jon.
On Thursday, October 29, 2020 at 1:47:23 AM UTC gregebert wrote:
> I'm going to guess it was an attempt to use octal-based math (which is a
> subset of binary) in early computers, instead of decimal, because of the
> greater efficiency in calculations. From
8453 is the US EIA/JEDEC registration for the Philips Z550M, also found in
Europe marked as ZM1050. If you search Z550M you'll have more luck. But
really all you need is Ronald Dekker's comprehensive piece of historical
research at https://www.dos4ever.com/Z550M/Z550M.html
Jon.
On Thursday
ball, which I'm very pleased to have in the collection!
Jon.
On Friday, October 23, 2020 at 6:13:14 PM UTC+1 Pramanicin wrote:
> Come on Jon, put us out of our misery. :)
>
> On Sunday, October 18, 2020 at 9:27:51 AM UTC-7 Jon wrote:
>
>>
>> Sharp eyes Grahame, a
Thanks very much Nick! You have email.
Jon.
On Thursday, October 22, 2020 at 2:39:46 PM UTC+1 Nick Sargeant wrote:
> Thanks for the replies. I seem to have my two customers - bear with me for
> a few days since work seems to have suddenly hotted up. (typical, isn't
> it?) Jon, if
Hi Nick,
I'd be interested in one, and happy to pay the postage (I'm in the UK too -
Hertfordshire).
Thanks,
Jon.
On Tuesday, October 20, 2020 at 4:13:07 PM UTC+1 Richard Scales wrote:
> I'm sorry to say that I didn't even know what one of those was until I
> googled it :-(
>
&g
this is a member do switch from mica
supports to ceramics. I have not actually seen an example of this
particular type with a ceramic support, but I have no reason to believe
they were not made.
So, very nice progress. Anyone able to get us all the way over the line?
Jon.
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> Well, it's not an A-101
That's true. And for the same reason that it could not be a 6802...
Jon.
On Sunday, October 18, 2020 at 4:15:11 AM UTC+1 gregebert wrote:
> Well, it's not an A-101
>
> On Saturday, October 17, 2020 at 11:07:57 AM UTC-7 M1 wrote:
>
>> My gue
bly be a
6802 (whether from Sylvania or Raytheon).
Jon.
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What are the date codes on the A-201?
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>>
>> On Saturday, 26 September 2020 at 15:42:37 UTC+1 Jon wrote:
>>
>>> And we seem to have lost the ability to PM people through the forum??
>>>
>>> Jon.
>>>
>>> On Friday, September
Yes, I am still interested.
Jon D.
On Mon, Sep 28, 2020 at 1:31 PM Yuriy Ovchinnikov <1219yuri...@gmail.com>
wrote:
> I can sell 3 pcs. IN-33 for $18 ea. + shipping.
>
> пн, 21 сент. 2020 г. в 17:19, Jon D. :
>
>> I am interested in purchasing three (3) of
>Rumours of Mr Wilkins' demise are, I am pleased to report, somewhat
premature!
Excellent news! Thanks Laurence - will follow up by email.
Jon.
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> I’ve been meaning to contact him for many years, since my Big Time II
started displaying odd behaviour
Strangely enough, that's exactly my reason too! Thanks Scott, Michail for
the input.
Jon.
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Apologies Lawrence - the email address I have for you is bouncing. Are you
still active on here? I have a question about one of your (cool) clocks...
Jon.
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And we seem to have lost the ability to PM people through the forum??
Jon.
On Friday, September 11, 2020 at 8:45:49 AM UTC+1 Nick wrote:
> Also... you can no longer edit a message once sent...
>
> Pinning a message to the top also seems to have gone.
>
> On Wednesday, 9 Septembe
Testing a possible wrinkle in new Google groups...
On Wednesday, October 16, 2019 at 8:12:52 PM UTC+1 MrNixie (UK) wrote:
> It certainly is! :)
>
> Laurence
> Creator, Designer, Builder and Seller of around 250 CYCLOXes, worldwide.
>
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