This may not be the correct forum, but thought I'd ask anyway.
It seems that RCA introduced this 12 pin Compactron in ~~ 1961; power pentode. Did any TV's of the era use this? The David Berning amp that used this tube is quite bizzare. Was this some kind of more "modern" variant of the 6L6, 5881, KT-66 or such? I see little to no info on the "net.
BTW, they are cheap and a dime-o-dozen on eBay; so not too much demand out there, IMHO.
http://davidberning.com/Files/review...862_eprint.pdf
Tom (PK)