Re: [neonixie-l] Vacuum tube manufacturing equipment - Providence RI

[Aleksander Zawada]

In Poland, most of the instructions ended up in the rubbish bin. I only 
saved a small part. This equipment is in poor condition, but I saved the 
carcass in worse condition.


W dniu 05.10.2021 o 17:55, Audrey pisze:
I hope at least the operation manuals get saved. It'd be a greek 
tragedy if this all went to some scrapper.


On Tue, Oct 5, 2021, 11:47 AM Toby Thain > wrote:



This all seems very worthy of preservation:



https://boston.craigslist.org/gbs/msg/d/providence-rca-vacuum-tube/7389317693.html



"RCA and Sylvania Vacuum Tube Manufacturing Equipment for sale -

RCA Grids Winders, Sealex Machines, Complete Trolley Assemblies with
control panel, Mica Dies, Grid Mandrels, Complete Sealex Line with
Control Panel, RCA Electron Tube Manufacturing Drawings from Harrison
NJ, RCA Cathode mixture and formula, Stem button machine. Glass Laths.
RCA Operation Manuals ect…the list goes on and on"

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Re: [neonixie-l] Re: Home made monoscope

[Aleksander Zawada]

Hello again,

I have many kind of pumps: ion, diffusion, turbomolecular and Roots. 
It's depend on vacuum device... In electron beam welder/3D printer I 
have 6000 l/s diffusion pump and 600m3/h Roots pump:). For pumping my 
electron devices usually I use diffusion pump 100 l/s. If I wait some 
hours, I have 5x10^-7 Torr. Sometimes I use ion pumps if I need very low 
pressure 10^-8 Torr and lower.


W dniu 16.11.2020 o 22:51, gregebert pisze:
What kind of vacuum equipment did you use ? The website mentioned 5 x 
10-6 torr, which is very impressive.


On Monday, November 16, 2020 at 1:20:45 PM UTC-8 Aleksander Zawada wrote:

Hello,

I finished my experimental monoscope tube. Here is description :

http://www.pwl.mikrokontroler.pl//tv_retro/monoskop/monoskop_e.htm
<http://www.pwl.mikrokontroler.pl//tv_retro/monoskop/monoskop_e.htm>

Best regards,

    Aleksander Zawada

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Re: [neonixie-l] Re: Master list of oddball symbols? --> NOW: LL- and LC-tubes

[Aleksander Zawada]

http://www.pwl.mikrokontroler.pl/lampy_elektronowe/ll1/ll1_pie_e.htm

http://www.pwl.mikrokontroler.pl/lampy_elektronowe/lc2/lc2_pie_e.htm

W dniu 20.01.2020 o 20:41, Dieter Waechter pisze:

HI,
This is right, but note that the RFT Bulletin tells "+, -, ~".
Especially at the LL- and LC-tubes there were different symbols and 
also pinouts with the same type number.

This is all I know at the moment:
*Type*  *Sort*  *Brand(s) * *Base*  *Displayed symbols*
LC-1NIX-E   PIE B13B0-9
LC-2NIX-E   Unitra Dolam (Poland)   B13Bnumerals
LC-7NIX-S   Unitra Dolam (Poland)   B13D0-9, PL, PR
LC-511  NIX-E   Unitra Dolam (Poland)   B13B0-9, dot (middle left)
LC-511F NIX-E   B13Bnumerals
LC-513  NIX-E   Unitra Dolam (Poland)   B13B0-9, PL
LC-513A NIX-E   Unitra Dolam (Poland)   B13B0-9
LC-516  NIX-E   Unitra Dolam (Poland)   U11 0-9
LC-531  NIX-S   Unitra Dolam (Poland)   B13D0-9, PL, PR
LC-531F NIX-S   Unitra Dolam (Poland)   B13D0-9, PL, PR
LC-541  NIX-S   B9A 0-9
LC-541F NIX-S   B9A 0-9
LC-631 (Version 01) NIX-S   Unitra Dolam (Poland)   B13B0-9
LC-631 (Version 02) NIX-S   Unitra Dolam (Poland)   B13B0-9
LC-631F NIX-S   Unitra Dolam (Poland)   B13B0-9
LL-1NIX-E   B13Bsymbols
LL-551  NIX-E   Unitra Dolam (Poland)   B13BA, V, Ω, +, -, ~, %
LL-551F NIX-E   Unitra Dolam (Poland)   B13BA, V, Ω, +, -, ~, %
LL-552  NIX-E   Unitra Dolam (Poland)   B13Bm, M, p, μ, k, n
LL-553  NIX-E   Unitra Dolam (Poland)   B13BF, H, Hz, S, W, z
LL-555  NIX-E   Unitra Dolam (Poland)   B13BŁ, C, T, R, Y, N, B
LL-556  NIX-E   Unitra Dolam (Poland)   B13BG, M, P, S, U, Δ
LL-557  NIX-E   Unitra Dolam (Poland)   B13BE, J, A, V, F, H
LL-558  NIX-E   Unitra Dolam (Poland)   B13BD, L, K, W, X, Z, φ
LL-558B NIX-E   Unitra Dolam (Poland)   B13Bsymbols
LL-561  NIX-S(I)Unitra Dolam (Poland)   B13D+, -, Δ or +, -, ~
LL-661  NIX-E   Unitra Dolam (Poland)   B13B+, -, ~
LL-661F NIX-E   B13B+, -, ~

*Additions welcome. Pictures welcome. Datasheets welcome. All data 
missing in the chart very welcome.*

*Offers for all welcome, too!*
Best regards
Dieter

- Original Message -
*From:* Tyler Bourne 
*To:* neonixie-l 
*Sent:* Monday, January 20, 2020 8:24 PM
*Subject:* [neonixie-l] Re: Master list of oddball symbols?

There is the Dolam LL-561, with +, -, and a triangle.


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Re: [neonixie-l] Re: Dolam LC-7

[Aleksander Zawada]

As a former employee of PIE I can explain that Dolam was experimental 
plant of PIE from 1961 to 1965. I'm sure that new development of polish 
nixie tubes (maybe not all) was done in PIE to 1970's. For example, I 
have some negative masks for nixie digits from 1970's.



W dniu 18.07.2017 o 22:10, Tomasz Kowalczyk pisze:


I'd like to explain one thing: PIE invented LC-1 and LC-2 in 1963
(or 1964), and in 1965 PIE was renamed to Dolam. So it is
basically the same company, if we can speak about something
resembling a company under communist regime.


I've mixed up some stuff. PIE didn't change into Dolam. Dolam was a 
part of PIE and was started in 1961.
Dolam was probably assigned to extend work on nixie tubes after 
initial success of PIE.




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[neonixie-l] polish plasma displays

[Aleksander Zawada]

Samples of polish plasma displays survived:)

http://www.pwl.mikrokontroler.pl/obrep/plazma/plazma_e.htm

I would like to ask for help with correct translation to english. Could 
somebody help?


Best regards
Alek

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Re: [neonixie-l] Homemade Nixie tubes project: Help with vacuum technology needed

[Aleksander Zawada onet]

When I started, I used car  light bulb as Pirani's gauge. I used my own 
glass oil diffusion pump (only 1-stage) and rotary pump. If you want, 
you can see here:


http://www.youtube.com/watch?v=TJ0Pm4swoOo

Unfortunatelly, only polish language.

 W dniu 2012-01-15 00:42, David Forbes pisze:

On 1/14/12 6:30 AM, jb-electronics wrote:

Hi,


Vacuum gauges are made by Varian. There's a panel meter and a little
metal gizmo with an octal base like an old vacuum tube. Look on ebay.


thanks, I did. The actual gauges are quite pricy, maybe I can use a more
ordinary pressure sensor and build a gauge of my own.

Thanks again,
Jens



An ordinary pressure sensor is useless for below 10 mbar, since the 
resolution is poor. The fancy ones use an ionization sensor to get an 
accurate reading at very low pressure.


And I made a mistake - it's not Varian you want, but Hastings.

Google for 'hastings vacuum' and you'll find lots of meters and 
sensors. The meters are $150-250 and the sensors are $50-100. But they 
work well.


The other brand of vacuum gauge that we use is Pfeiffer/Balzers, but 
they are really expensive. They go down to the microtorr level, though.




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Re: [neonixie-l] Merry Christmas

[Aleksander Zawada onet]

Merry Christmas to all! :)

http://obrazki.elektroda.pl/8682015000_1324773434.jpg
http://obrazki.elektroda.pl/8321478800_1324773435.jpg
http://obrazki.elektroda.pl/7756402800_1324773435.jpg
http://obrazki.elektroda.pl/3746685400_1324773434.jpg

http://filmy.elektroda.net/85_1324772989.flv
http://filmy.elektroda.net/73_1324772773.flv

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[neonixie-l] Nixie spots:)

[Aleksander Zawada onet]

Hi everybody,

After long break, I can show you two nixies from PWL laboratory- mp4 files.

PWL spot:

http://tubedevices.com/alek/pwl/reklama_pwl/pwl_nixie_spot.mp4

Political nixie tube about Poland 2011:

http://tubedevices.com/alek/pwl/polityczna/political_nixie_2011_poland.mp4


Best regards

Aleksander Zawada

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