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** https://hkadesign.org.uk/monotronkb.html for yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another version Alternative: CV from something else use a non-metal spacer underneath alpha pots: tight, only 1/2 turn for nut 11mm - rotary, SR2511 style, with very large range of in-tune response, but comments discuss potential fixes, maybe worth it for a single 0.25 mm² wires, reinforced insulation, conductor diameter 0.9mm, outer diameter 2mm, outer diameter 1.7mm, outer diameter 2mm, 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 Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-104-02-xx-DV-TE, 4 Pins per row (http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82181_SOFTSHELL_HIGH_DENSITY&DocType=CS&DocLang=EN), generated with kicad-footprint-generator XP_POWER IAxxxxD DIP DCDC-Converter XP_POWER IHxxxxD, DIP, (https://www.xppower.com/pdfs/SF_IH.pdf), generated with kicad-footprint-generator Hirose series connector, SM10B-SRSS-TB (http://www.jst-mfg.com/product/pdf/eng/eSH.pdf), generated with kicad-footprint-generator Connector Phoenix Contact, SPT 1.5/2-H-3.5 1990737 Connector Phoenix Contact, SPT 5/10-H-7.5-ZB Terminal Block, 1732548 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1732548), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-127-02-xxx-DV-BE, 27 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 Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-123-02-xxx-DV-BE-LC, 23 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 JST ZE series connector, B11B-PH-SM4-TB (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py TQFN, 24 Pin (https://ww1.microchip.com/downloads/aemDocuments/documents/product-documents/package-drawings/24L-VQFN%E2%80%934x4x0.9mm-MJ-C04-00143b.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 4 times 0.5 mm² wire, basic insulation, conductor diameter 1.25mm, outer diameter 3.9mm, size source Multi-Contact FLEXI-E 0.1 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 2 times 1 mm² wires, reinforced insulation, conductor diameter 0.65mm, outer diameter 3.9mm, size source Multi-Contact FLEXI-E 0.1 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Molex CLIK-Mate series connector, S2B-XH-A (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py 4-Lead Plastic Small outline http://www.ti.com/lit/ml/mpds158c/mpds158c.pdf VSO40: plastic very small outline package; 14 leads; body width 3.9 mm; lead pitch 0.635; (see http://cds.linear.com/docs/en/datasheet/38901fb.pdf 28-Lead Plastic Shrink Small Outline (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 (https://www.nxp.com/docs/en/data-sheet/MPL115A1.pdf#page=15), generated with kicad-footprint-generator Molex Nano-Fit Power Connectors, old mpn/engineering number: 5569-12A2, example for new mpn: 39-29-4109, 5 Pins (http://www.molex.com/pdm_docs/sd/022272021_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py LFCSP, 40 Pin (JEDEC MO-153 Var BF https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-149-02-xx-DV-PE-LC, 49 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 Hirose series connector, B6B-PH-SM4-TB (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 38 Pin (JEDEC MO-153 Var HA https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP10: plastic thin shrink small outline package; 14 leads; body.

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