OSH Park
BA662 Clone with DC offset Trimmer
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BA662 Clone with DC offset Trimmer
by Altitude909.
2
layer board of
0.86x0.39
inches
(21.87x9.80
mm).
Shared on
June 19th, 2015 11:26.
Clone of the BA662 OTA use in old Roland Machines. I’ve added a trimmer and resistor to trim off the DC offset like on the SH-101 PCB. Interestingly enough, those parts were never populated on the SH-101 (probably cheaper to bin the parts for offset). This is the same mod that I documented for the x0xb0x..
Original design by Open Music Labs