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Rate goes down when resistance goes up, opposite to expectation. Schematic fixes: - C1 is too small; need more than fifty percent (50%) or more Secondary Licenses, and the following procedure for assembly. As usual do the lowest components first — resistors and diodes — then sockets, ceramic capacitors, power header, transistors, film caps, electrolytic caps... Something like that. Consider: 1 simple on/off switch/button/knob/etc. PSU \+12V, -12V and ground needed, probably up to 1amp .

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