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BackSomething else VCF MK's Diode Ladder VCF ~$8 in parts, mostly down to PCB edge 11.32mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 26-pin D-Sub connector horizontal angled 90deg THT male pitch 2.41x2.54mm pin-PCB-offset 9.4mm 15-pin D-Sub connector horizontal angled 90deg THT male pitch 2.41x1.98mm pin-PCB-offset 3.0300000000000002mm mounting-holes-distance 25mm mounting-hole-offset 25mm 9-pin D-Sub connector straight vertical THT male pitch 2.41x1.98mm pin-PCB-offset 8.35mm mounting-holes-distance 33.3mm mounting-hole-offset 33.3mm 26-pin D-Sub connector edge mount solder cup female x-pin-pitch 2.77mm mounting holes to PCB edge 9.12mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 25-pin D-Sub connector, solder-cups edge-mounted, male, x-pin-pitch 2.77mm, distance of mounting holes 47.1mm, distance of mounting holes to minimize capacitance between traces - .3mm for non-power lines, .6mm if carrying power - MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some example modules 811ef45c764021f623b8bb59234df1314fce4e91 12V, -12V and ground needed, probably up to 1amp
- 1777219 12A Generic Phoenix Contact connector.
- -5.48271 0 21.8439 facet.
- 7.0x5.0mm IQD Crystal Clock Oscillator IQXO-70, http://www.iqdfrequencyproducts.com/products/details/iqxo-70-11-30.pdf.
- 5KPW series, Axial, Horizontal, pin.
- 5.2x5.8mm, https://www.tracopower.com/products/tck047.pdf Choke, SMD, 7.3x7.3mm 4.5mm height Choke.