Dual Oscillator

BES 004 is a dual analogue oscillator in eurorack format. It is designed around Mark Verbose’s schematic for Don Buchla’s original 258 dual oscillator module.
The oscillators are triangle core with waveshaper circuits to morph from a Sinewave to either Saw or Square.
The module has inputs for FM, AM, V/Oct and Waveshape CV for each oscillator.

http://www.boxemissionssystems.com/home.html