Tuesday 20 October 2009

Buchla 281 Function Generator



This is a prototype panel for a dual Buchla 281 clone (PCB's provided by Topp) I'm not sure I'm happy with the placement of the switches, so I may revise the panel a little. I have included attenuators for all control inputs (including A and B signals to the peak circuit) I've also added VC Both and an external input - X - to the peak circuit. One of the toggles for each Function Generator enables the switching of the output back to the input ('feedback') meaning that logarithmic and exponential slopes can be created as well as the standard linear slopes.

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