Finished all bench testing of the MOTM-320 VC LFO prototype tonite. Will start CAD cycle (schematic capture, B.O.M., pcb placement, pcb layout) tomorrow. Again: this isn't designed for a VCO replacement, but you can mess around in the <2Khz area. It has no HF track, and there is no low Rbe, matched pair (there is a tempco resistor). Kit is about a 7 on the complex scale: many resistors and about 15 (!) discrete NPN/PNP/FETs (recall this is loosly based on the VCS-3). On the low end: I got 1 cycle in about 18 minutes with a cheesy cap. Will keep you posted! Paul S.
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MOTM-320 VCLFO inches as well.......
1999-08-27 by Paul Schreiber