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Dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on https://www.analog.com/media/en/technical-documentation/data-sheets/8063fa.pdf Altera BGA-36 V36 VBGA BGA-48 - pitch 0.8 mm Highspeed card edge connector for 2.4mm PCB's with 08 contacts (not polarized Highspeed card edge connector for 1.6mm PCB's with 50 contacts (not polarized Highspeed card edge connector for PCB's with 30 contacts (not polarized Highspeed card edge connector for 1.6mm PCB's with 20 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 05 contacts (not polarized Highspeed card edge connector for 1.6mm PCB's with 20 contacts (polarized conn samtec card-edge high-speed Highspeed card edge connector for 2.4mm PCB's with 40 contacts (not polarized Highspeed card edge connector for PCB's with 30 contacts (not polarized Highspeed card edge connector for PCB's with 70 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 40 contacts (polarized conn samtec card-edge socket high-speed 0.8 mm Highspeed card edge connector for PCB's with 60 contacts (not polarized Highspeed card edge connector for panel, 90° PCB mount 4 pin SMD MSOP, 8 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0168.PDF), generated with kicad-footprint-generator Molex KK-254 Interconnect System, old/engineering part number: 5273-11A example for new part number: 26-60-5160, 16 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator JST EH series connector, B10B-XH-AM, with boss (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator Mounting Hardware, inside blind hole M1.6, height 6, Wuerth electronics 9774010951 (https://katalog.we-online.de/em/datasheet/9774010951.pdf), generated with kicad-footprint-generator JST JWPF side entry Molex PicoBlade series connector, B12B-XH-A (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 64 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/PIC16LF19195-6-7-Data-Sheet-40001873D.pdf#page=718), generated with kicad-footprint-generator ipc_noLead_generator.py TQFN, 20 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/doc8246.pdf#page=263), generated with kicad-footprint-generator ipc_noLead_generator.py WQFN, 16 Pin (http://www.st.com/resource/en/datasheet/lis331hh.pdf), generated with kicad-footprint-generator Soldered wire connection, for 5 times 1 mm² wire, basic insulation, conductor diameter 1.7mm, outer diameter 3.9mm, size source Multi-Contact FLEXI-xV 2.0 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Mounting Hardware, inside through hole 2.7mm.

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