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0-2.5v / 0-5v Gate out, with probably +12v gates. Variable step count, 1-10 steps possible (with 2-3 extra switch positions to re-use for frequently-swapped positions). - External reset via socket. - External reset via momentary push button. - CV version maybe possible, but a much bigger circuit. Haven't found a simple manual EG ~$7 in parts, depending on PCB with 2 copper strips net tie solder jumper bridged SMD Solder Jumper, 1x1.5mm, rounded Pads, 0.3mm gap, pads 1-2 bridged with 1 copper strip SMD 1x20 1.00mm single row style2 pin1 right Through hole socket strip THT 1x06 2.54mm single row (from Kicad 4.0.7), script generated Through hole horizontal IDC box header THT 1x28 1.27mm single row Through hole straight socket strip, 2x15, 1.27mm pitch, double rows Through hole angled pin header THT 1x39 1.27mm single row style1 pin1 left Surface mounted pin header SMD 2x15 2.54mm double row Through hole angled socket strip, 2x20, 2.54mm pitch, single row style1 pin1 left Surface mounted pin header THT 1x24 2.54mm single row style2 pin1 right Through hole straight socket strip, 2x28, 2.00mm pitch, 6.35mm socket length, double cols (from Kicad 4.0.7!), script generated Through hole straight pin header, 2x10, 2.00mm pitch, 4.2mm pin length, single row Through hole straight pin header, 2x28, 2.00mm pitch, 4.2mm pin length, single row style1 pin1 left Surface mounted pin header SMD 1x34 1.00mm single row Surface mounted socket strip SMD 1x13 2.54mm single row Through hole angled socket strip THT 2x26 2.00mm double row Through hole angled pin header, 2x23, 1.27mm pitch, 4.0mm pin length, single row Surface mounted pin header.

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