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Old tube? Or?




 
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k7mdo
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« on: July 18, 2020, 06:23:54 PM »

RCA 1960 (not in my books)

Looks like a neon or some such.... maybe rectifier?

73, Tom


* RCA 1960.JPG (32.04 KB, 666x375 - viewed 173 times.)
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W7TFO
WTF-OVER in 7 land Dennis
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IN A TRIODE NO ONE CAN HEAR YOU SCREEN


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« Reply #1 on: July 19, 2020, 03:14:33 AM »

It is a 'protector' tube:

https://frank.pocnet.net/sheets/201/1/1960.pdf

Essentially a spark gap discharge job.

73DG
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Just pacing the Farady cage...
k7mdo
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« Reply #2 on: July 19, 2020, 09:41:32 AM »

Yes, it has a very small gap i can see....

Wonder, is it an "antique" ?

Tom
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Patrick J. / KD5OEI
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« Reply #3 on: July 21, 2020, 06:19:00 PM »

It's an antique. IIRC it was to fit into a waveguide hence the flange. If supplied with a current-limited voltage and the base plate used as the cathode, it makes a nice little glow. However I don't recommend doing this for long or at high current over a few mA. YMMV. Do not fiddle with the screws. It's my birth year tube LOL no cooler tube can I imagine.
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« Reply #4 on: August 02, 2020, 03:32:16 PM »

Quote
Wonder, is it an "antique" ?

Tom

I guess it depends what it is to judge it as an antique? For example to get a car antique registration in the state of NY it is 25 years back from the current year. This may vary from state to state and probably from country to country. But I think that spark gap device was something from late 1943-46 and as far as electronics are concerned, most of us if not all,would agree that stuff from that era is antique...
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