[sdiy] Source for 3080's

[David G. Dixon]

> I'm looking for a source for some CA3080s to build some Thomas Henry
> circuits...

If you don't mind changing the layouts a bit, you could just use (the much
easier to find) LM13700 instead.  It's a superior OTA, it's cheap, and,
conveniently, it comes in pairs.  I've built the Thomas Henry VCO-1 with it,
and it works perfectly.  I used the extra OTA for a sine shaper.