Tacos mystery challenge

[Karl W4KRL]

Bob,

 

I think you are right. It looks like one output is on pin K and its
antiphase on L. 

 

Karl W4KRL

 

From: Bob Bruhns [mailto:bbruhns at erols.com] 
Sent: Saturday, April 13, 2013 10:40 PM
To: tacos at amrad.org
Subject: Re: Tacos mystery challenge

 

It's some sort of phase splitter.  I'm not sure that it would be hi-fi in
nature.  Maybe it functions as a balanced modulator if audio feeds into
terminal E and some carrier signal feeds into the cathode circuit through
terminal F.  Terminal F would need some kind of DC path to the negative
supply.

   Bob, WA3WDR



 

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