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File uses an arduino nano (other options probably fine), two 74HC595 shift registers (accidentally a pile in my collection) and the MCP4922 DAC (others may work). Probably can build our own based on ** https://www.instructables.com/Another-MIDI-to-CV-Box-/ 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 LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W or 2W Single Output SM DC/DC Converters 78sr3.3 78sr5 78sr9 78sr12 78srXX DCDC-Converter, RECOM, RECOM_R-78HB-0.5, SIP-3, pitch 2.54mm, size 13.16x6.5mm^2, drill diamater 1.15mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00023_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_4Ucon THT Terminal Block WAGO 236-212 45Degree pitch 5mm size 42.3x14mm^2 drill 1.15mm pad 3mm Terminal Block WAGO 236-608 45Degree pitch 10mm size 162x14mm^2 drill 1.15mm pad 3mm Terminal Block Phoenix PT-1,5-9-5.0-H pitch 5mm Varistor, diameter 9mm, width 4.8mm, pitch 7.5mm Varistor, diameter 21.5mm, width 4.9mm, pitch 10mm size 95x10.3mm^2 drill 1.3mm pad 2.6mm Terminal Block 4Ucon ItemNo. 10687 pitch 3.5mm size 53.2x7mm^2 drill 1.2mm pad 3mm Terminal Block Phoenix MKDS-1,5-6-5.08 pitch 5.08mm length 9.5mm diameter 5.2mm Diode, DO-201AD series, Axial, Horizontal, pin pitch=12.7mm, , length*diameter=7*3.3mm^2, Fastron, MICC, http://www.fastrongroup.com/image-show/70/MICC.pdf?type=Complete-DataSheet&productType=series Inductor Axial series Axial Horizontal pin pitch 5.00mm length 7mm diameter 3.3mm Fastron MICC Inductor, Axial series, Axial, Horizontal, pin pitch=15mm, , length*diameter=5.1*3.1mm^2, http://www.vishay.com/docs/45231/arseries.pdf C Axial series Axial Horizontal pin pitch 18.29mm diameter 27.9mm Vishay IHB-3 Inductor, Radial series, Radial, pin pitch=22.50mm, , length*width=24*7mm^2, Capacitor, https://en.tdk.eu/inf/20/20/db/fc_2009/MKT_B32560_564.pdf C Rect series Radial pin pitch 25mm length 17mm diameter 6mm width 4.4mm Capacitor C, Disc series, Radial, pin pitch=5.00mm, , diameter=12.0mm, MuRATA, 1900R, http://www.murata-ps.com/data/magnetics/kmp_1900r.pdf Inductor Radial series Radial pin pitch 5.00mm diameter 7.5mm Fastron MESC Inductor, Axial series, Axial, Vertical, pin pitch=7.62mm, , length*diameter=13*4.5mm^2, Fastron, HCCC, http://www.fastrongroup.com/image-show/19/HCCC.pdf?type=Complete-DataSheet&productType=series Inductor Axial series Axial Horizontal pin pitch 2.50mm diameter 13mm Electrolytic Capacitor CP, Axial series, Axial, Vertical, pin pitch=2.54mm, , length*diameter=3.2*2.6mm^2, , http://www.diodes.com/_files/packages/T-1.pdf Diode T-1 series Axial Horizontal pin pitch 3.81mm length 9mm width 4.2mm Capacitor C, Disc series.

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