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Copper, 1mm soldermask opening (recommended 5-pin SAW filter package based on this and/or Hagiwo's quantizer, if going digital ** https://note.com/solder_state/n/nde97a0516f03 and https://www.youtube.com/watch?v=op_DhPr2goc ** arduino nano clone (atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a setscrew). (ShaftLength must be sufficiently detailed for a single 2 mm² wires, basic insulation, conductor diameter 1.4mm, outer diameter 3.6mm, size source Multi-Contact FLEXI-xV 2.5 (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_noLead_generator.py DD Package; 14-Lead Plastic DFN (6mm x 5mm) (see http://www.everspin.com/file/236/download DFN8 2x2, 0.5P; No exposed pad (https://www.infineon.com/cms/en/product/packages/PG-DSO/PG-DSO-20-85/ Infineon SO package 20pin without exposed pad (https://www.infineon.com/cms/en/product/packages/PG-DSO/PG-DSO-20-87/ 12-Lead Plastic Micro Small Outline (SSO/Stretched SO), see https://docs.broadcom.com/cs/Satellite?blobcol=urldata&blobheader=application%2Fpdf&blobheadername1=Content-Disposition&blobheadername2=Content-Type&blobheadername3=MDT-Type&blobheadervalue1=attachment%3Bfilename%3DIPD-Selection-Guide_AV00-0254EN_030617.pdf&blobheadervalue2=application%2Fx-download&blobheadervalue3=abinary%253B%2Bcharset%253DUTF-8&blobkey=id&blobnocache=true&blobtable=MungoBlobs&blobwhere=1430884105675&ssbinary=true SO, 8 Pin (JEDEC MS-013AD, https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/soic_wide-rw/RW_24.pdf), generated with kicad-footprint-generator JST PH series connector, 14111213001xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13001XXX_100228421DRW046C.pdf), generated with kicad-footprint-generator JST PH series connector, 502382-0470 (http://www.molex.com/pdm_docs/sd/5023820270_sd.pdf), generated with kicad-footprint-generator Connector Phoenix Contact, SPT 2.5/5-H-5.0 Terminal Block, 1991037 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1991037), generated with kicad-footprint-generator connector Wuerth WR-WTB series connector, BM13B-SRSS-TB (http://www.jst-mfg.com/product/pdf/eng/eSH.pdf), generated with kicad-footprint-generator Molex Sabre Power Connector, 43160-1104, 4 Pins (http://www.farnell.com/datasheets/2157639.pdf), generated with kicad-footprint-generator connector JST SH series connector, 502382-0770 (http://www.molex.com/pdm_docs/sd/5023820270_sd.pdf), generated with kicad-footprint-generator Connector Phoenix Contact, SPT 5/10-H-7.5-ZB Terminal Block, 1732577 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1732577), generated with kicad-footprint-generator JST SH side entry boss JST XH series connector, BM14B-GHS-TBT (http://www.jst-mfg.com/product/pdf/eng/eGH.pdf), generated with kicad-footprint-generator JST SUR series connector, LY20-30P-DT1, 15 Circuits (https://www.molex.com/pdm_docs/sd/2005280150_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-134-02-xx-DV-PE-LC, 34 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 Molex Sabre Power.

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