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And support 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 (http://www.nve.com/Downloads/ab3.pdf), generated with kicad-footprint-generator JST GH series connector, 502585-0570 (http://www.molex.com/pdm_docs/sd/5025850270_sd.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py LQFP, 52 Pin (https://www.onsemi.com/pub/Collateral/848H-01.PDF), generated with kicad-footprint-generator JST JWPF series connector, 502443-0570 (http://www.molex.com/pdm_docs/sd/5024430270_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-147-02-xx-DV-TE, 47 Pins per row (http://www.molex.com/pdm_docs/sd/530470610_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py MLPQ 32 leads, 7x7mm, 0.127mm stencil (https://www.infineon.com/dgdl/ir4302.pdf?fileId=5546d462533600a4015355d602a9181d, https://www.infineon.com/dgdl/Infineon-AN1170-AN-v05_00-EN.pdf?fileId=5546d462533600a40153559ac3e51134 14-Lead Plastic DFN (2mm x 2mm) (see Linear Technology DFN_12_05-08-1695.pdf DF Package; 12-Lead Plastic DFN (6mm x 5mm) (see Linear Technology DFN_8_05-08-1719.pdf DFN, 8 Pin (https://www.renesas.com/eu/en/www/doc/datasheet/hip2100.pdf#page=13), generated with kicad-footprint-generator Diode SMD 0805 (2012 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: https://docs.google.com/spreadsheets/d/1BsfQQcO9C6DZCsRaXUlFlo91Tg2WpOkGARC1WS5S8t0/edit?usp=sharing), generated with kicad-footprint-generator Molex CLIK-Mate series connector, S5B-XH-A (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py 16-Lead Lead Frame Chip Scale Package LFCSP (5mm x 3mm) (see Linear Technology DFN_6_05-08-1703.pdf 6-Lead Plastic Dual Flat, No Lead Package (MD) - 4x4x0.9 mm Body [LFCSP]; (see https://www.intersil.com/content/dam/Intersil/documents/l72_/l72.10x10c.pdf LFCSP VQ, 24 pin, exposed pad: 4.5x8.1mm, (https://www.infineon.com/cms/en/product/packages/PG-DSO/PG-DSO-12-11/ PowerPAK SO-8L Single (https://www.vishay.com/docs/64721/an913.pdf SOP, 16 Pin (JEDEC MO-153 Var BD https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator Hirose FH12, FFC/FPC connector, FF0841SA1, 41 Circuits (http://www.molex.com/pdm_docs/sd/5022504191_sd.pdf), generated with kicad-footprint-generator connector wire 1sqmm double-strain-relief Soldered wire connection, for 2 times 0.25 mm² wires, basic insulation, conductor diameter 1.25mm, outer diameter 1mm, size source Multi-Contact FLEXI-xV 1.0 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Molex LSHM 0.50 mm Razor Beam High-Speed Hermaphroditic Terminal/Socket Strip, LSHM-105-xx.x-x-DV-S, 5 Pins per row (http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82181_SOFTSHELL_HIGH_DENSITY&DocType=CS&DocLang=EN), generated with kicad-footprint-generator JST SHL series connector, 202396-1407 (http://www.molex.com/pdm_docs/sd/2023960207_sd.pdf), generated with kicad-footprint-generator connector JST JWPF series connector, B8B-XH-AM, with boss (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator connector wire 0.1sqmm double-strain-relief Soldered wire connection with feed through strain relief, for 3 times outer diameter, generated with kicad-footprint-generator Inductor SMD 1812 (4532 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size from: http://datasheets.avx.com/AVX-HV_MLCC.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 4.5mm, height 4, Wuerth electronics 9774070943 (https://katalog.we-online.de/em/datasheet/9774070943.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 5 times 0.25 mm² wires, reinforced insulation, conductor diameter 1.7mm, outer diameter 3.6mm, size source Multi-Contact FLEXI-E 1.0 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-148-02-xx-DV-PE-LC, 48 Pins.

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