[sdiy] Alltime best ring modulator circuit... ever?

[Tim Daugard]

> I was wondering what people think is the best ring modulator circuit, both
> for use in a modular synth and maybe as an effect for other instruments like
> guitar.

http://home.earthlink.net/~synthfred/h_kmd101.htm

Here is my favorite. I use it in my system with my bass. I designed it after reading about
ring modulators and analizing the current flows of one. It provides for quadrant
modulation centered around the reference point.

If you have a bi-polar power supply and replace the bias network with a ground connection,
then the output will go above and below ground.

It uses one quad opamp and 4 diodes.


Tim Daugard
AG4GZ 30.4078N 86.6227W Alt: 12 feet above MSL
http://home.sprintmail.com/~daugard/synth.htm
http://home.earthlink.net/~synthfred/h_toctop.htm (Fred's online edition)