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($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some supporting components. ~$6 in parts, needing only one cross-board wire that shouldn't be so hard. - In general, try to avoid putting any UX connections on the mid surdos. Examples Didá, on the right diameter. ** Currently, the pot shaft extends almost exactly 13mm from the front panel candidates v1 and v2

Added schmancy pcb for v2 front panel and pcb into different files Altech AK300 terminal block, pitch 5.08mm, size 40.6x9.8mm^2, drill diamater 1.3mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block WAGO 804-113 45Degree pitch 10mm size 92.3x14mm^2 drill 1.15mm pad 3mm Terminal Block Phoenix MKDS-1,5-4, 4 pins, WP154A4, https://www.kingbright.com/attachments/file/psearch/000/00/00/L-154A4SUREQBFZGEW(Ver.11A).pdf LED diameter 3.0mm z-position of LED center 9.0mm 2 pins Rectangular size 4.5x1.6mm^2 2 pins LED_Rectangular, Rectangular, Rectangular size 5.0x2.0mm^2, 2 pins, diameter 5.0mm z-position of LED center 2.0mm 2 pins LED diameter 5.0mm z-position of LED center 2.0mm 2 pins LED_Rectangular, Rectangular, Rectangular size 5.0x2.0mm^2 z-position of LED center 1.0mm, 2 pins, diameter 5.0mm z-position of LED center 1.0mm 2 pins LED, diameter 5.0mm Tantal Electrolytic Capacitor, , http://www.vishay.com/docs/42037/53d.pdf CP Axial series Axial Vertical pin pitch 14.30mm Resistor, Axial_Shunt series, Box, pin pitch=25.4mm, 5W, length*diameter=20*9mm^2, http://www.vishay.com/docs/20128/wkxwrx.pdf Resistor Axial_DIN0414 series Axial Horizontal pin pitch 5.00mm length 7.5mm width 2.5mm Capacitor C, Disc series, Radial, pin pitch=29.30mm, , diameter=29.8mm, muRATA, 1400series, http://www.murata-ps.com/data/magnetics/kmp_1400.pdf Inductor Radial series Radial pin.

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