[sdiy] multiplier questions/experiments AD633

David G. Dixon dixon at interchange.ubc.ca
Wed Oct 27 22:29:13 CEST 2010

> > If you take a four-quadrant multiplier, and feed it two
> > audio rate signals, it makes a great "ring modulator"
> > sound...
> Unless you have a DC offset on any of the inputs, which causes fairly
> severe leakages.

Yes 4-quadrant multipliers should always have the option of AC coupling on
the inputs.  I like to do it with a switch, so I can also use them for CV

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