DIY Electronics Question

[Paul Maddox]

Paul,

> The 800dv is two voice so there are 2 sets of CV/Gate + 2 sets of LPF CV and
> HPF CV.  I wanted the sockets to control both voices if only 1 set of
> sockets are installed.  This works great BUT, the connection between the
> filter CVs flows in both directions (obviously which means even when there
> is no external CV control, the second filter controls the first filter.  Its
> complicated to describe but I know how to fix it:

so, if you buy "switching" sockets, you should be able to resolve this
(without diodes or buffers), I think

> Question: for a CV circuit, if I want CV to flow in one direction and not
> the other, would a diode do this?  If so, what sort of rating do I need?

I'm a bit confused about the problem...
you have TWO CVs, you want to control the same thing?

if so, you *can* do it with diodes, but it's ugly and will cause a voltage drop.
It would be better to do it with a summing, non inverting, buffer op-amp.

Paul