MOTM

In a message dated 00-02-09 15:47:48 EST, you write:

<< I understand there's a hell of a lot of circuitry involved in a true FS. >>



ken,
well, 2 balanced mod circuits (or is it one, i can`t recall at the moment for 
sure, oops, :^(  ), some 90 degree phase shift networks, assorted summers and 
a carrier oscillator. i recall that electronotes had one designed quite a few 
years ago. using that as a starting point should be feasible. especially with 
the analog devices ic`s for ring modulators. much better than 595`s or simple 
ota circuits.
best,
dave