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+ 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 SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W single output DC/DC Murata MGJ2DxxxxxxSC, 19.5x9.8x12.5mm, 5.2kVDC Isolated, 1W, single output, http://www.cincon.com/upload/media/data%20sheets/Data%20Sheet%20(DC)/C%20CASE/SPEC-EC6C-V12.pdf DCDC-Converter CINCON EC6Cxx dual or tripple output, http://www.cincon.com/upload/media/data%20sheets/Data%20Sheet%20(DC)/C%20CASE/SPEC-EC6C-V12.pdf DCDC-Converter CINCON EC5BExx 18-36VDC to dual output DCDC-Converter, CINCON, EC5BExx, 18-36VDC to dual output DCDC-Converter, CINCON, EC6Cxx, dual or tripple output, http://www.cincon.com/upload/media/data%20sheets/Data%20Sheet%20(DC)/C%20CASE/SPEC-EC6C-V12.pdf DCDC-Converter CINCON EC5BExx 18-36VDC to Dual output, Rev. March 21.2016 DCDC-Converter TRACO TMR1-xxxx Dual_output DCDC-Converter, TRACO, TSR 1-xxxx XP_POWER IA48xxD, DIP, (https://www.xppower.com/pdfs/SF_IA.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, SM20B-SRSS-TB (http://www.jst-mfg.com/product/pdf/eng/eSH.pdf), generated with kicad-footprint-generator connector Hirose DF11 through hole, DF11-28DP-2DSA, 14 Pins per row, Mounting: (http://www.molex.com/pdm_docs/sd/039281043_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 48 Pin (https://www.lumissil.com/assets/pdf/core/IS31FL3236_DS.pdf), generated with kicad-footprint-generator Molex LY 20 series connector, S3B-PH-K (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator connector JST SUR series connector, B10B-XH-A (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator JST PUD series connector, SM02B-SURS-TF (http://www.jst-mfg.com/product/pdf/eng/eSUR.pdf), generated with kicad-footprint-generator JST VH PBT series connector, 53780-0870 (), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 55560-0241, 24 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator JST PH series connector, B22B-PHDSS (http://www.jst-mfg.com/product/pdf/eng/ePHD.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, DF52-11S-0.8H (https://www.hirose.com/product/en/products/DF52/DF52-3S-0.8H%2821%29/), generated with kicad-footprint-generator Hirose DF13C vertical Hirose DF12C SMD, DF12C3.0-50DS-0.5V, 50 Pins (http://www.molex.com/pdm_docs/sd/547220804_sd.pdf), generated with kicad-footprint-generator Molex PicoBlade top entry JST EH series connector, LY20-30P-DLT1, 15 Circuits (http://www.molex.com/pdm_docs/sd/5022441530_sd.pdf Molex 0.50mm Pitch Easy-On BackFlip Type FFC/FPC, 502250-3991, 39 Circuits (http://www.molex.com/pdm_docs/sd/5022503991_sd.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP, 48 Pin (https://static.dev.sifive.com/SiFive-FE310-G000-datasheet-v1p5.pdf#page=20), generated with kicad-footprint-generator JST SH series connector, DF52-8S-0.8H (https://www.hirose.com/product/en/products/DF52/DF52-3S-0.8H%2821%29/), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-147-02-xxx-DV-BE-A, 47 Pins per row (https://www.hirose.com/product/document?clcode=CL0537-0834-6-81&productname=DF12E(3.0)-50DP-0.5V(81)&series=DF12&documenttype=2DDrawing&lang=en&documentid=0000992393), generated with kicad-footprint-generator JST PHD series connector, S10B-J21DK-GGXR (http://www.jst-mfg.com/product/pdf/eng/eJFA-J2000.pdf), generated with kicad-footprint-generator JST PH series connector, B16B-PH-K (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-133-02-xxx-DV, 33 Pins per row (https://www.hirose.com/product/en/products/DF63/), generated with kicad-footprint-generator JST ZE series connector, B6B-XH-A (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator JST XA series connector, BM05B-ZESS-TBT (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator Soldered wire connection, for 3 times outer diameter, generated with kicad-footprint-generator Molex CLIK-Mate series connector, BM03B-AUHKS-GA-TB (http://www.jst-mfg.com/product/pdf/eng/eAUH.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 2.25mm.

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