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Old 30th Nov 2017, 10:00 pm   #25
Argus25
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Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
Posts: 2,679
Default Re: Care of Rare Valves

Quote:
Originally Posted by RF Burn View Post
Are they all Cunningham tubes? Considering the relationship between RCA and E. T. Cunningham could it be that RCA selected the 'imperfect' examples of their production for supply to Cunningham? Just a thought!
This particular one is Cunninghan. Most RCA 201A's and similar types are hard to see into. Oddly though, the Ken-Rad brand, at least most of the examples I have, have only a small getter and the electrode structures are readily seen.
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