[R-390] R-390A SSB adapter

[DJED1@aol.com]

Thanks for the comments, Lester.   One original requirement I set out when I 
started the design was to avoid heresy- the SSB adapter had to connect only to 
existing connections on the rear of the radio.   So it uses the IF output, 
the AVC terminals, and routes the audio back into the radio via the diode load 
terminals.   This way the radio doesn't know its hooked up to a sand-state 
device.
I've thought about some of the other items you mentioned, but I decided not 
to try and make the radio into something its not.   
Ed


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