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One uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some supporting components. ~$6 in parts, depending on PCB From 6f5ee76aea5e7cdfb79e86a703d20d48842d1955 Mon Sep 17 00:00:00 2001 Subject: [PATCH] submodule doc From 13c8bcac477b612d33e1b1cfe89a6f9adc0a8935 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Checkpoint in case of crashes Fix getting a bunch of wires backwards Fix floating pin for op amp in schmidt inverter mode, maybe both 7808 and hex inverter trigger are unnecessary? Alternative: Midi -> CV We could also do one of the stem. [mm] // Cylinder faces to use for rounding teh top edge. (Other "top rounding *" parameters are only relevant if checked. Enable_top_rounding = false; // Number of faces on the https://www.onsemi.com/pub/Collateral/NCP115-D.PDF Panasonic HQFN-16, 4x4x0.85mm (https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HQFN016-A-0404XZL_EN.pdf Panasonic HSON-8, 8x8x1.25mm (https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HSON008-A-0808XXI_EN.pdf QFN, 12 Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/QFN_12_%2005-08-1855.pdf), generated with kicad-footprint-generator Resistor SMD 1206 (3216 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: https://www.nikhef.nl/pub/departments/mt/projects/detectorR_D/dtddice/ERJ2G.pdf), generated with kicad-footprint-generator Molex Sabre Power Connector, 43160-0102, 2 Pins per row (https://www.molex.com/pdm_docs/sd/430450201_sd.pdf), generated with kicad-footprint-generator JST ZE series connector, B15B-ZESK-1D, with boss (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 4 times 0.1 mm² wires, basic insulation, conductor diameter 1.4mm, outer diameter 1.5mm, size source Multi-Contact FLEXI-E 0.75 (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-143-02-xxx-DV-BE-LC, 43 Pins per row (https://www.hirose.com/product/document?clcode=&productname=&series=DF11&documenttype=Catalog&lang=en&documentid=D31688_en), generated with kicad-footprint-generator Capacitor SMD Kemet-Y (7343-40 Metric), IPC_7351 nominal, (Body size source: https://www.vishay.com/docs/20019/rcwe.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, 501331-0807 (http://www.molex.com/pdm_docs/sd/5013310207_sd.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py 64-Lead Plastic Thin Quad Flatpack (PT) - 12x12x1 mm Body, 2.00 mm [TQFP] (see Microchip Packaging Specification 00000049BS.pdf 48-Lead Thin Quad Flatpack (PT) - 10x10x1.0 mm Body [SSOP] (see Microchip Packaging Specification 00000049BS.pdf SSOP, 32 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8209-8-bit%20AVR%20ATmega16M1-32M1-64M1_Datasheet.pdf#page=426), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-143-02-xx-DV-TE, 43 Pins per row (http://www.molex.com/pdm_docs/sd/1053141208_sd.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole M3, height 5, Wuerth electronics 9771100360 (https://katalog.we-online.com/em/datasheet/9771100360.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-122-02-xxx-DV-BE-A, 22 Pins per row (http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82181_SOFTSHELL_HIGH_DENSITY&DocType=CS&DocLang=EN), generated with StandardBox.py) (https://www.we-online.com/components/products/datasheet/74439358068.pdf Inductor Wuerth WE-XHMI 8080 WE-CAIR Air coil, https://www.we-online.com/components/products/datasheet/744918254.pdf air coil inductor wurth we cair Semi-Shielded High Saturation Power.

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