[sdiy] Multiplier vs VCA?

[Roman]

> b) Have to get really creative to use these in VCOs with a exponental freq
response.
> c) Only place I can think of a log device being useful is for a pan/morph
circuit.

does that mean I'm creative? That's nice :)
I don't know THAT2180 well enough, but if it has linear-in-dB control input
like
SSM2164, then it's actually easier to use it in VCO than other VCA.
I made also VCF, and envelope with it, but that's old news now.

Roman