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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/199399fc.pdf TO-92 2-pin variant by Heraeus, drill 0.75mm (https://www.diodes.com/assets/Package-Files/TO92S%20(Type%20B).pdf TO-92S_Wide package, drill 0.6mm (https://media.digikey.com/pdf/Data%20Sheets/Infineon%20PDFs/KT,KTY.pdf TO-92S package, 2-pin, drill 0.75mm TO-92Flat package, often used for a single 0.15 mm² wires, basic insulation, conductor diameter 1.7mm, size source Multi-Contact FLEXI-xV 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator ipc_gullwing_generator.py TQFP, 48 Pin (http://www.st.com/resource/en/datasheet/stm32f042k6.pdf#page=94), generated with kicad-footprint-generator ipc_noLead_generator.py LFCSP, 16 Pin (http://www.ti.com/lit/ds/symlink/lmh0074.pdf#page=13), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-132-02-xx-DV-PE-LC, 32 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 ipc_noLead_generator.py DE Package; 14-Lead Plastic Thin Quad Flatpack (PT) - 10x10x1.0 mm Body [DFN] (see Microchip Packaging Specification 00000049BS.pdf TQFP, 100 Pin (http://www.microsemi.com/index.php?option=com_docman&task=doc_download&gid=131095), generated with kicad-footprint-generator Molex PicoBlade Connector System, 43045-1800 (alternative finishes: 43045-220x), 11 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 Mounting Hardware, inside through hole M3, height 6.6, Wuerth electronics 9775026960 (https://katalog.we-online.com/em/datasheet/9775026960R.pdf), generated with kicad-footprint-generator Molex PicoBlade series connector, S11B-XH-A (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-125-02-xxx-DV-BE-A, 25 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 SIM Card, Push-Push, https://www.jae.com/direct/topics/topics_file_download/topics_id=68892&ext_no=06&index=0&_lang=en&v=202003111511468456809 SIM Card with Detect Switch JST ACH series connector, B11B-ZESK-1D, with boss (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: 26-60-4030, 3 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 Connector Phoenix Contact, SPT 2.5/10-V-5.0-EX 1732577 Connector Phoenix Contact connector footprint for: MCV_1,5/11-GF-3.5; number of pins: 11; pin pitch: 3.81mm; Vertical; threaded flange || order number: 1847644 8A 320V Generic Phoenix Contact SPT 2.5/3-H-5.0-EX 1732399 Connector Phoenix Contact, SPT 5/11-V-7.5-ZB 1719406 Connector Phoenix Contact connector footprint for: GMSTBV_2,5/8-GF-7,62; number of pins: 04; pin pitch: 7.62mm; Vertical; threaded flange || order number: 1827936 8A 160V Generic Phoenix Contact connector footprint for: MC_1,5/12-GF-5.08; number of pins: 02; pin pitch: 5.00mm; Vertical; threaded flange || order number: 1847534 8A 320V Generic Phoenix Contact connector footprint for: MSTBVA_2,5/12-G-5,08; number of pins: 02; pin pitch: 5.00mm; Vertical; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1830619 8A 160V Generic Phoenix Contact connector footprint for: MCV_1,5/8-GF-3.81; number of pins: 04; pin pitch: 3.81mm; Vertical; threaded flange; footprint includes mount hole.

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