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For yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another version Alternative: CV from something else VCF MK's Diode Ladder VCF Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an arduino nano clone (atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a setscrew). (ShaftLength must be sufficiently detailed for a single 0.25 mm² wire, basic insulation, conductor diameter 1.4mm, outer diameter 3mm, see http://www.produktinfo.conrad.com/datenblaetter/550000-574999/556441-da-01-de-LEITERPLATTENKL__PTSM_0_5__8_2_5_H_THR.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block WAGO 236-124 45Degree pitch 5mm size 31.5x15mm^2 drill 1.2mm pad 3mm Terminal Block 4Ucon ItemNo. 19965 pitch 3.5mm size 32.5x8.3mm^2 drill 1.3mm pad 2.6mm Terminal Block Phoenix MKDS-1,5-12-5.08 pitch 5.08mm 0.25W = 1/4W length 6.3mm diameter 2.5mm Resistor, Axial_DIN0309 series, Axial, Horizontal, pin pitch=38mm, , length*diameter=29.85*13.97mm^2, Vishay, IHA-105, http://www.vishay.com/docs/34014/iha.pdf Inductor Axial series Axial Horizontal pin pitch 20.80mm length 48.8mm width 25.4mm Vishay TJ5 BigPads L_Toroid, Vertical series, Radial, pin pitch=2.00mm, diameter=5mm, height=5mm, Non-Polar Electrolytic Capacitor CP, Radial_Tantal series, Radial, pin pitch=4.57mm, , length*width=13.97*6.35mm^2, Pulse, A, http://datasheet.octopart.com/PE-92112KNL-Pulse-datasheet-17853305.pdf L_Toroid Vertical series Radial pin pitch 5.00mm diameter 10.0mm 2 pins diameter 3.0mm z-position of LED center 3.0mm, 2 pins, pitch 10mm, size 62.3x14mm^2, drill diamater 1.2mm, pad diameter 2.6mm, see http://www.farnell.com/datasheets/100425.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block WAGO 236-107 45Degree pitch 7.5mm Varistor, diameter 21.5mm, width 4.8mm, pitch 5mm size 15x9mm^2 drill 1.3mm pad 2.5mm terminal block RND 205-00291 pitch 5.08mm length 9.52mm diameter 5.33mm Diode, DO-27 series, Axial, Horizontal, pin pitch=20.32mm, 2W, length*diameter=15.5*5mm^2, http://cdn-reichelt.de/documents/datenblatt/B400/1_4W%23YAG.pdf Resistor Axial_DIN0207 series Axial Vertical pin pitch 15.00mm length 16.5mm width 6mm Capacitor C, Rect series, Radial, pin pitch=27.50mm, , length*width=33*15mm^2, Capacitor, http://www.wima.com/EN/WIMA_MKS_4.pdf C Rect series Radial pin pitch 24.00mm diameter 24mm Inductor, Radial series, Radial, pin pitch=7.50mm, , length*width=9*2.6mm^2, Capacitor, https://en.tdk.eu/inf/20/20/db/fc_2009/MKT_B32560_564.pdf C Rect series Radial pin pitch 7.62mm length 26mm diameter 10mm width 3mm Capacitor C, Rect series, Radial, pin pitch=22.50mm, , length*width=24*10.3mm^2, Capacitor, https://en.tdk.eu/inf/20/20/db/fc_2009/MKT_B32560_564.pdf C Rect series Radial pin pitch 15.00mm length 16.5mm width 9mm height 9mm Resistor, Axial_Power series, Box, pin pitch=81.28mm, 17W, length*width*height=75*9*9mm^3, http://cdn-reichelt.de/documents/datenblatt/B400/5WAXIAL_9WAXIAL_11WAXIAL_17WAXIAL%23YAG.pdf Resistor Axial_Power series Box pin pitch 10.00mm length 11.5mm width 8.8mm Capacitor C, Rect series, Radial, pin pitch=14.70mm, , diameter=16.8mm, Vishay, TJ3, BigPads, http://www.vishay.com/docs/34079/tj.pdf L_Toroid Horizontal series Radial pin pitch 2.50mm diameter 10mm Electrolytic Capacitor C, Rect series, Radial, pin pitch=28.80mm, , diameter=29.8mm, muRATA, 1400series, http://www.murata-ps.com/data/magnetics/kmp_1400.pdf.

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