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Circuit outside the full 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 20 contacts (not polarized Highspeed card edge connector for PCB's with 60 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 20 contacts (not polarized Connector PCBEdge molex EDGELOCK Generic Phoenix Contact connector footprint for: MC_1,5/11-G-5.08; number of pins: 04; pin pitch: 5.08mm; Vertical; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x4.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1924091 16A (HC Generic Phoenix Contact connector footprint for: GMSTB_2,5/9-GF-7,62; number of pins: 04; pin pitch: 5.00mm; Vertical || order number: 1803510 8A 160V Generic Phoenix Contact connector footprint for: MSTB_2,5/13-GF-5,08; number of pins: 04; pin pitch: 5.08mm; Vertical; threaded flange || order number: 1847712 8A 320V Generic Phoenix Contact SPT 2.5/8-V-5.0-EX Terminal Block, 1732412 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1732412), generated with kicad-footprint-generator connector JST PUD series connector, BM20B-SURS-TF (http://www.jst-mfg.com/product/pdf/eng/eSUR.pdf), generated with kicad-footprint-generator Molex Nano-Fit Power Connectors, 105310-xx12, 6 Pins (http://www.farnell.com/datasheets/2157639.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP, 40 Pin (http://www.ti.com/lit/ds/symlink/dac7750.pdf#page=54), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 4 times 2.5 mm² wires, basic insulation, conductor diameter 1.25mm, outer diameter 2.3mm, size source Multi-Contact FLEXI-E 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3.

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