[ARC5] 10 meter BC-454 - yet more

[Geoff]

SX-28, RBB/RBC, some Nationals, for starters. It was also used as an early 
TV tube, in some test equipment, as well as Harry Hambone sticking it in a 
RF and IF amp.

BTW, Ian, do I owe you a PW dial?

Carl


----- Original Message ----- 
From: "Ian Wilson" <ianmwilson73 at gmail.com>
To: "ARC-5 List" <arc5 at mailman.qth.net>
Sent: Tuesday, February 05, 2013 11:23 AM
Subject: Re: [ARC5] 10 meter BC-454 - yet more


> Where were 6AC7's actually used? They show up regularly in fairly
> large numbers in piles of metal octals, etc. My guess is that they were
> used as IF amplifiers in radar sets. I don't recall seeing any in the
> Surplus Conversion Manual schematics, though, so I wonder when
> they were introduced?
>
> 73, ian K3IMW
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