[sdiy] LAG circuit de-tuning VCO question

[David G Dixon]

> I haven't done the maths but I bet even a TL071 would be better than a
> LT1013 in this case.

I use TL07X for everything.  I've never really understood how a voltage
offset of a few mV compromises CVs, particularly when the opamp in question
is summing several CV sources and applying a relatively small gain to them
(as in the 1V/octave summer of a VCO).  Wouldn't the offset be just like a
microscopic tweak on a tuning pot or something?  I guess I just don't see
the big deal.  In a follower, it just introduces a small shift in the
voltage, but this shift is applied to any voltage -- 1V becomes 1.003V, 5V
becomes 5.003V -- is that right?