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BackVCO.png' 811ef45c76 schematic start, and some supporting components. ~$6 in parts, needing only one tl074 and support 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 1.5 mm² wires, reinforced insulation, conductor diameter 2.4mm, outer diameter 2mm, see http://www.produktinfo.conrad.com/datenblaetter/550000-574999/556444-da-01-de-LEITERPLATTENKL__PTSM_0_5__4_2_5_V_THR.pdf, script-generated with , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00079, 3 pins, pitch 2.54mm, size 8.08x6.5mm^2, drill diamater 1.3mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_TE-Connectivity THT Terminal Block WAGO 236-624, 45Degree (cable under 45degree), 16 pins, pitch 5mm, size 20x9mm^2, drill diamater 1.2mm, pad diameter 2.6mm, see http://www.metz-connect.com/de/system/files/productfiles/Datenblatt_310671_RT019xxHDWC_OFF-023605N.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT terminal block Metz Connect Type101_RT01604HBWC pitch 5.08mm size 66x11.2mm^2 drill 1.3mm pad 2.5mm.
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