VCO update

[Ian Fritz]

Listers --

I've spent some time to put my latest tri VCO onto a real circuit board
(well, OK, it's just vectorboard). I made a few minor modifications and
changed the compensation scheme around a bit. Also, I developed a new
tri->saw waveshaper, using analog switches driven directly from the
comparitors in the main oscillator. This gives a very clean sawtooth. I also
investigated a new synchronization method using pulses to "kick" the
oscillator, rather than resetting the waveform.

It's all up on my website (VCO2, under synth circuits), so I won't go into
more detail here. Let me know what you think!

  Ian

http://home.earthlink.net/~ijfritz