MOTM

> My fave ring mod is the Yamaha CS80 without a doubt. That circuit is
alive,
> its scary! : )
> Anyone have particuliars on that circuit ?

Not difficult. Clean and straight forward circuit.

The two points that set it apart from other RMs have nothing to do
with the circuit:

(1) It's on the frontpanel, where you can easily grab it, and it has these
     *wonderful* Yamaha rotary slilders.

(2) It has a dedicated VCO, not tracking to the keyboard, but modulated
      by a AD envelope. This is a limitation, compared to other RMs -
      and exactly this limitation adds to its usefulness.

JH.

PS.: Forgot to say, apart from that, it's just your ordinary garden variety
        balanced modulator.