DIY Electronics Question

[punkdISCO]

Hey Paul

Big thanks!!

> this way, CV1 and CV2 will be summed and control LPF2, but with an opamp
(and the way it works) CV2 will not be passed back to LPF1.

By "summed" do you mean added together?  If so, this is not what I want,
rather, I want it to be an "OR":

1) CV plug only engaged into socket 1 = LPF1 and LFP2 both respond to socket
1 CV
OR
2) CV plugged into socket 1 AND socket 2 = LPF1 responds to socket 1, and
LPF2 responds to socket 2.

The above actually already works but, Im from the synth cutoff, this is feed
back Cutoff2 back into Cutoff1 (when not externally controlled)

Off to bed so ill look at your link more closely tomorrow.  Maybe this is
what you are already saying..

Either way, I appreciate your time!!

Thanks,

Paul

London
www.punkdisco.co.uk