[sdiy] On the topic of ring modulation (Using FETs instead of diodes?)

[Timothy Daugard]

On 8/14/2014 7:16 AM, Ove Ridé wrote:
> And to ask a slightly different question, how would one design a high
> quality analog ring modulator for audio frequencies, using modern,
> jelly bean parts? (That is, non-specialized parts, as well parts that
> didn't go out of production 10-20 years ago.)
>
Years ago I created a ring modulator for audio using a quad op amp and 
four diodes.  It worked well. the key was using the inverting and 
non-inverting inputs of an opamp to simulate the output transformer.

Tim Daugard