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// rows up from bottom; these are actually 2p6t, which means only six different step counts are available until the replacement arrives - Wiring SW15 (once/stop) and cascade out is easier done via skywiring; only one tl074 and support Kassutronic's KS-20 VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some example modules f80e4975fb checkpoint before trying to implement chaining 1aa48a179a Add splits and labels to get below 200bpm - C1 is too small for film; is film needed? More notes move bugs to md file to be more robust and easier to adjust parameters for. 1.0 2012-03-?? Initial release at https://www.thingiverse.com/thing:20513 . Based on designs from: Skull & Circuits (https://www.skullandcircuits.com/vca-1-2/ Moritz Klein (https://www.ericasynths.lv/shop/diy-kits-1/edu-diy-vca/) Features: If we expect or plan on developing modules which use the 4 pins module CMS SOT223 8 pins, pitch 10mm, size 55x8.1mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00078_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block Metz Connect Type171_RT13703HBWC pitch 7.5mm size 74x15mm^2 drill 1.2mm pad 3mm Terminal Block WAGO 236-448 45Degree pitch 5mm size 20x7.6mm^2 drill 1.3mm pad 2.6mm terminal block Metz Connect Type171_RT13704HBWC, 4 pins, pitch 2.54mm, hole diameter 1.3mm, hole diameter 1.0mm test point THT pad as test point, pitch 2.0mm, hole diameter 0.7mm, wire diameter 1.0mm (press fit), length 10.0mm solder Pin_ with flat fork, hole diameter 1.3mm, wire diameter 1.0mm (press fit), length 11.0mm width 7.0mm Resistor, Radial_Power series, Radial, pin pitch=15.00mm, , length*width=16.5*7mm^2, Capacitor, https://en.tdk.eu/inf/20/20/db/fc_2009/MKT_B32560_564.pdf C Rect series Radial pin pitch 2.40*2.30mm^2 7W length 25mm width 6.4mm height 6.4mm Resistor, Axial_Power series, Box, pin pitch=55.88mm, 11W, length*width*height=50*9*9mm^3, http://cdn-reichelt.de/documents/datenblatt/B400/5WAXIAL_9WAXIAL_11WAXIAL_17WAXIAL%23YAG.pdf Resistor Axial_Power series Axial Horizontal pin pitch 6.35*6.35mm^2 length 9.14mm width 9.14mm Pulse LP-25 Inductor, Radial series, Radial, pin pitch=19.60mm, , diameter=21.8mm, Bourns, 2100, http://www.bourns.com/docs/Product-Datasheets/2100_series.pdf?sfvrsn=3 L_Toroid Horizontal series Radial pin pitch 19.05mm diameter 27.9mm Vishay IHB-3 Inductor, Radial series, Radial, pin pitch=7.50mm 10.00mm, , length*width=13*6.5mm^2, Capacitor C Radial series Radial pin pitch 20mm length 12mm diameter 10.5mm C, Axial series, Axial, Horizontal, pin pitch=7.62mm, , length*diameter=16*7.5mm^2, Fastron, XHBCC, http://www.fastrongroup.com/image-show/26/XHBCC.pdf?type=Complete-DataSheet&productType=series Inductor Axial series Axial Horizontal pin pitch 10.00mm length 13mm width 6.5mm Capacitor C, Rect series, Radial, pin pitch=26.16mm, , diameter=40.64mm, Vishay, IHB-5, http://www.vishay.com/docs/34015/ihb.pdf Inductor Radial series Radial pin pitch 25.4mm length 20mm width 6.4mm height 6.4mm Resistor, Axial_Power series, Axial, Horizontal, pin pitch=20.32mm, , length*diameter=17.5*12mm^2, Vishay, IM-10-46, http://www.vishay.com/docs/34030/im10.pdf Inductor Axial series Axial Vertical pin pitch 20.00mm 10W length 47.6mm width 9.5mm Capacitor C, Rect series, Radial, pin pitch=23.90mm, , diameter=24.4mm, muRATA, 1400series, http://www.murata-ps.com/data/magnetics/kmp_1400.pdf.

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