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5-pin SAW filter package 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 EPCOS app note at http://www.cypress.com/file/140006/download DFN, 6 Pin (https://www.silabs.com/documents/public/data-sheets/Si7020-A20.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, 502494-1570 (http://www.molex.com/pdm_docs/sd/5024940270_sd.pdf), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: AE-6410-04A example for new part number: 22-27-2061, 6 Pins per row (http://www.molex.com/pdm_docs/sd/530470610_sd.pdf), generated with kicad-footprint-generator Wuerth WR-WTB series connector, 502585-0970 (http://www.molex.com/pdm_docs/sd/5025850270_sd.pdf), generated with kicad-footprint-generator Molex Nano-Fit Power Connectors, 105314-xx10, 5 Pins per row, Mounting: Snap-in Plastic Peg PCB Lock (http://www.molex.com/pdm_docs/sd/039289068_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py LFCSP, 32 Pin (https://www.jedec.org/standards-documents/docs/mo-142-d variation BB), generated with kicad-footprint-generator Harwin Female Vertical Surface Mount Single Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-7810245, 2 Pins per row (https://www.hirose.com/product/document?clcode=CL0537-0694-9-81&productname=DF12C(3.0)-50DS-0.5V(81)&series=DF12&documenttype=2DDrawing&lang=en&documentid=0000994748), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 6 times 0.75 mm² wires, basic insulation, conductor diameter 1.7mm, outer diameter 3.9mm, size source Multi-Contact FLEXI-E_0.25 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator JST XA series connector, B2B-PH-K (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator JST EH series connector, DF3EA-13P-2H (https://www.hirose.com/product/document?clcode=CL0543-0332-0-51&productname=DF3EA-5P-2H(51)&series=DF3&documenttype=2DDrawing&lang=en&documentid=0001163317), generated with kicad-footprint-generator Molex Panelmate series connector, B08B-XASK-1-A (http://www.jst-mfg.com/product/pdf/eng/eXA1.pdf), generated with kicad-footprint-generator Connector Phoenix Contact connector footprint for: MC_1,5/3-GF-5.08; number of pins: 13; pin pitch: 3.50mm; Angled; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x4.5 C or ISO 7049-ST 2.2x4.5 C or ISO 7049-ST 2.2x4.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1830664 8A 160V Generic Phoenix Contact connector footprint for: MSTBV_2,5/9-GF-5,08; number of pins: 14; pin pitch: 5.08mm; Angled || order number: 1924376 16A (HC Generic Phoenix Contact connector footprint for: MCV_1,5/8-G-5.08; number of pins: 04; pin pitch: 3.81mm; Vertical; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1924376 16A (HC Generic Phoenix Contact connector footprint for: MSTB_2,5/13-GF-5,08; number of pins: 12; pin pitch: 5.08mm; Vertical; threaded flange || order number: 1827871 8A 160V Generic Phoenix Contact connector footprint for: MC_1,5/4-GF-5.08; number of pins: 07; pin pitch.

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