Re: [neonixie-l] Dekatrons in (their original) action

2017-07-04 Thread Paolo Cravero
Thank you all for your responses and especially for sharing pictures.

The oscilloscope in Dave's father lab looks much like my Tek 7000R (7603R).
It is about as old as I am.

And after seeing this picture I asked my parents if they had a picture of
them taken while at work, but no. Then I realised that I should ask a
colleague to take a picture of me at my workplace (just a plain office):
it's one of those everyday actions that don't get recorded but document
real life, not holidays.

Paolo

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Re: [neonixie-l] Dekatrons in (their original) action

2017-07-04 Thread Roddy Scott
Now that is what you call real electronics! None of those mysterious 
plastic blocks with metal legs and invisible resistors.
They knew how to make stuff in those days!

On Tuesday, July 4, 2017 at 12:13:36 AM UTC+1, Dave Brown wrote:
>
> Here’s a photo of the front panel of a  dekatron based (for the high speed 
> decades!) carcass counter-used on a sheep carcass processing production 
> line in a local freezing works some years ago. I have yet to restore it. 
> More pictures here-
>
> http://homepages.ihug.co.nz/~tractorb/dekatron%20counter/
>
>  
>
> DaveB, NZ
>
>  
>
>  
>
> *From:* neoni...@googlegroups.com  [mailto:
> neoni...@googlegroups.com ] *On Behalf Of *Dan Harboe Burer
> *Sent:* Tuesday, July 04, 2017 5:30 AM
> *To:* neoni...@googlegroups.com 
> *Subject:* Re: [neonixie-l] Dekatrons in (their original) action
>
>  
>
> I have a couple of dekatron counters in my “small” collection.. The same 
> Leybold with a single module and a funny smaller radiation counter..
>
> The Leybold has a fault I haven’t gotten around to locate yet (I doesn’t 
> count!) but alle dekatrons light up.
>
>  
>
> Dan
>
>  
>
> *From:* Paolo Cravero 
>
> *Sent:* Monday, July 3, 2017 5:46 PM
>
> *To:* neoni...@googlegroups.com  
>
> *Subject:* [neonixie-l] Dekatrons in (their original) action
>
>  
>
> Hello.
> While walking around an electronics flea market/rally in Italy I met real 
> dekatrons for the first time. They were six, mounted on a counting device 
> marked "Leybold 55962" (picture attached).
>
> Not much to say about the device except that it was used in a laboratory 
> as a radioactivity counter (you can look up more info on the net) and I 
> couldn't see it working. The price asked was 100 Euro. The seller had 
> another device with dekatrons going for the same price (no picture taken).
>
> In the whole rally then I saw two Nixie-based frequency counters, no spare 
> numeric indicator tubes (I did not open every single valve box to check for 
> mis-labeling :) ) and I bought three small unmarked 9 digit VFDs like 
> IV-21. Still, well worth the journey.
>
> I wonder if there were "mass-produced" devices featuring dekatrons?
>
> Paolo
>
>  
>
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