[sdiy] X8 squarewave multiplier.

[harrybissell]

The important features of the sawtooth are

1) No change in amplitude with frequency

2) No change in DC offset with frequency

3) Sawtooth linearity

4) Fast reset time.

If any of these are not there, jitter or other
distortion will result. Maybe it will be a problem,
maybe a feature :^P

wouldn't you want ALL these in a good VCO...
alas, there are a lot of BAD VCOs out there too...

The TB-303 sawtooth with the 'flat spot' at the
top would be an awful choice.  The Yamaha clone
VCO that Old Crow did would be a bad choice
as well (because of the unusual reset waveform).

H^) harry