Buchla 200 Eurorack Interface for Evergreen

I concieved this module as a link between The Evergreen State College’s sizeable Buchla 100/200/200e systems and their new mixed make Eurorack synthesizer. The unit features 4 channels of control voltage scaling- 2 allocated for each direction. The gain factor is intended to be x1.2 for Buchla to Eurorack and x.833 for the reverse. Each channel also features variable offset for accomadating a mixture of singular polarity and bipolar modules. In addition this device contains a bipolar bargraph for visualizing applied control voltages and offsets. Another feature I included for fun is a 2 channel fixed amplifier for converting Buchla audio signals to modulation levels. I found myself wanting this after some satisfying experiments with driving model 258 dual oscillators into sub audio frequencies in order to provide some more conventional LFO’s than are typical in an Electric Music Box.