MOTM

>... has anyone looked at the 'reverse engineering' speculation...

And speculation it is. I have the full schematic and it is so simple it
nearly made me cry. Only the lower section has a 3900. The rest of it is
3080s and dual op-amps. The middle section is basically a series of
differential amplifiers with parallel diodes in place of the resistor to
ground. The two inputs of each diff amp are connected together.

I built a clone, and it does indeed sound very good. If a little
unusual.

Regards,

Tony Allgood  Penrith, Cumbria, England

Oakley Modular Synth and TB3030:
www.techrepairs.freeserve.co.uk/projects.htm
My music: www.mp3.com/taklamakan