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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 PCB's with 40 contacts (not polarized Highspeed card edge connector for 1.6mm PCB's with 50 contacts (not polarized Highspeed card edge card connector socket for 1.57mm PCBs, vertical (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf Samtec Micro Mate Discrete Wire Terminal Strip, 1.00 mm Pitch, Single Row, Vertical (source: https://suddendocs.samtec.com/prints/t1m-single-row-footprint.pdf conn samtec card-edge high-speed Highspeed card edge connector for PCB's with 05 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 20 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 60 contacts (not polarized Highspeed card edge connector for 2.4mm PCB's with 50 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 70 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 70 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 70 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 70 contacts (not polarized Connector PCBEdge molex EDGELOCK Generic Phoenix Contact SPT 5/9-V-7.5-ZB 1719383 Connector Phoenix Contact connector footprint for: MCV_1,5/5-GF-5.08; number of pins: 08; pin pitch: 5.08mm; Vertical; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x6.5 C or ISO 7049-ST 2.2x6.5 C or ISO 7049-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1766864 12A 630V Generic Phoenix Contact connector footprint for: MC_1,5/10-GF-3.81; number of pins: 10; pin pitch: 7.62mm; Vertical; threaded flange || order number: 1847709 8A 320V Generic Phoenix Contact connector footprint for: MSTB_2,5/4-GF-5,08; number of pins: 11; pin pitch: 5.08mm; Vertical || order number: 1757381.

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