[sdiy] Module idea - you guys get to work (for me!)

[Peter Grenader]

Got an idea.  You can 'kind of' do it now, without this marvelous invention
I'm thinking of, but...

Is there be anyway of extrapolating the phasing of two lightly detuned VCOs
as a control voltage?  I think this would be really, really cool.  I guess
if you tuned two VCOs in perfect unison, and introduced a SLIGHT freq VC on
one of them to induce this phasing, you could use that CV as the secondary
CV, but it sure would be neat to make something that just pulled it out form
the two VCO inputs.

- P