Quadratur VCO

„Simple“ VCO with Sinus and C-Sinus output.

From 13 Minutes (1,2mHz) to 3 Khz with one knob.

Very stable amplitude over whole range.

Made for my NEW klangbau Frequencyshifter with external input, also suitable for a Doepfer A126.

FM mod in put, Sins and C-Sinus out.