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Using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another version Alternative: CV from something else VCF MK's Diode Ladder VCF Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an arduino nano (other options probably fine), two 74HC595 shift registers (accidentally a pile in my collection) and the potential extra tariffs, it's unclear whether JLCPCB is still the best option. This page is to collect findings from researching other potential fab plants. Our standard design is 1.6mm thick, 2-sided copper clad fiberglass. ENIG is unnecessary. Shipping for minimum order* of Fireball front panels Shipping for minimum order* of Fireball main PCBs (maybe the same size. Alignment tips: Set the X position to point out // cv out (j7/j6 // pause cv in (j18/j19 // run/stop (sw14 h_wall(h=4, l=slider_spacing*10-1, th=1); v_wall(h=4, l=height-rail_clearance*2-thickness, th=thickness*1.25); v_wall(h=4, l=height-rail_clearance*2, th=right_rib_thickness); //outline of whole PCB cube([137.5, 97, 1], center=true); echo("Putting a hole for mounting screw: ISO 1481-ST 2.2x4.5 C or ISO 7049-ST 2.2x4.5 C or ISO 7049-ST 2.2x6.5 C or ISO 7049-ST 2.2x4.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1757323 12A || order number: 1923979 16A (HC Generic Phoenix Contact connector footprint for: MSTBVA_2,5/9-G-5,08; number of pins: 02; pin pitch: 5.08mm; Angled; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x4.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1830732 8A 160V Generic Phoenix Contact SPT 5/9-H-7.5-ZB Terminal Block, 1719383 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1719383), generated with kicad-footprint-generator JST XA vertical boss JST XH series connector, SM14B-SURS-TF (http://www.jst-mfg.com/product/pdf/eng/eSUR.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py DDB Package; 12-Lead Plastic Micro Small Outline (SO), see https://www.elpro.org/de/index.php?controller=attachment&id_attachment=339 SO, 4 Pin (https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/0_Datasheets/Humidity/Sensirion_Humidity_Sensors_SHTC3_Datasheet.pdf Sensirion DFN-8 SHT3x-DIS (https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT3x_Datasheet_digital.pdf 24-Lead Plastic QFN (3mm x 3mm) (see Linear Technology DFN_12_05-08-1725.pdf DE/UE Package; 12-Lead Plastic DFN (3mm x 2mm) (see Linear Technology DFN_12_05-08-1723.pdf DFN, 12 Pin (https://www.diodes.com/assets/Datasheets/PAM2306.pdf), generated with kicad-footprint-generator JST XA series connector, 501331-0607 (http://www.molex.com/pdm_docs/sd/5013310207_sd.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, S06B-XASK-1 (http://www.jst-mfg.com/product/pdf/eng/eXA1.pdf), generated with kicad-footprint-generator JST XA series connector, SM15B-ZESS-TB (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator Molex KK-254 Interconnect System, old/engineering part number: A-41792-0015 example for new part number: A-41791-0008 example.

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