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SPST CTS_Series194-6MSTN, Piano, row spacing 7.62 mm (300 mils), Socket, LongPads 24-lead though-hole mounted DIP package, row spacing 10.16 mm (400 mils), LongPads THT DIP DIL PDIP 2.54mm 7.62mm 300mil SMDSocket SmallPads 40-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils), body size 9.78x9.8mm (see e.g. Https://www.ctscorp.com/wp-content/uploads/206-208.pdf DIP Switch SPST 1P1T tactile switch SPST right angle, PTS645VL39-2 LFS tactile switch with Signal Lamp, generic K switch normally-open pushbutton push-button LED D MEC 5E single pole double throw | | | | R4, R12, R13 | 3 | A1M | **Potentiometer, 9 mm or 16 mm pots had long enough terminals, barely, to poke through the board, cross at 90° 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 Envelope/Envelope.kicad_pcb | 2 Fireball/Fireball.kicad_pro | 93 Fireball/Fireball.kicad_sch | 1614 main MK_SEQ/Schematics/Unseen Servant/Unseen Servant_counter_board_noncanonical.kicad_dru facet normal -8.104236e-01 -1.684634e-04 5.858443e-01 facet normal -0.265121 -0.618898 0.739376 facet normal -0.124598 -0.886057 0.446518 facet normal -3.551516e-001 -2.892438e-003 9.348043e-001 vertex 4.199100e+000 -2.423207e+000 2.493625e+001 facet normal 0.630723 0.768425 0.108218 facet normal 0.545287 0.816081 -0.191503 facet normal 0.528266 -0.643689 0.553714 vertex 5.8029 8.06528 2.94279 facet normal -0.807331 -0.0635428 0.586668 facet normal -0.0950617 -0.0292285 0.995042 vertex 7.443 2.94689 19.9485 facet normal -0.885449 -0.0559554 0.461356 facet normal 0.807217 0.0635208 0.586827 vertex 1.95005 0.326085 19.9 facet normal -0.768512 0.63062 0.108202 facet normal -2.890018e-001 4.954581e-001 8.191454e-001 facet normal 0.137446 0.257144 0.956549 facet normal -5.477276e-002 9.390116e-002 9.940737e-001 facet normal -0.471394 0.881923 0 vertex 0.4 -3.00952 6.59 vertex -2.69268 -2.0165 6.59 vertex 0 9.96384 2.94279 facet normal -4.391152e-002 7.528094e-002 9.961950e-001 vertex 3.567843e+000 -4.085063e+000 2.495526e+001 vertex 2.681124e+000 -4.602288e+000 2.495526e+001 facet.

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