[R-390] Working on R-390A IF Deck

Rbethman rbethman at comcast.net
Sun Mar 26 13:09:25 EST 2006


Gang,

I've been working on an R-390 Collins IF deck.  It is an early one with 
no trimmers on the filters.  (Just reference info!)
I had to replace Z-501 due to a broken slug and broken off adjustment 
"head".

What would be the most reliable way to set this oscillator system "on 
the money" for 455kHz?

Scope, Sig Gen., and Freq counter are available on bench.

Bob N0DGN

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