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The far leg of R21 to the very bottom. * @todo Add a front-panel PCB d40f7ca1ca Experimenting with more panel layout 3bfacc0b86 Add main pdf UI: 11 potentiometers 11 SPDT switches (many used as SPST) 2 momentary pushbutton switches 1 rotary switch, 5+ positions - 10 ohms between U1-14 and U2-1 when off, more like 1M when off - Single Step - 12V through 10k Ohms to U-1-14, more like 1M when off - Glide attenuator (B10k) (join two left pins from below Clock rate (B100k) (not sure yet which 2 pins LED diameter 5.0mm z-position of LED center 1.0mm 2 pins LED, diameter 3.0mm z-position of LED center 1.0mm 2 pins Ceramic Resomator/Filter Murata CDSCB, http://cdn-reichelt.de/documents/datenblatt/B400/SFECV-107.pdf, 4.5x2.0mm^2 package SMD Crystal Seiko Epson SG-3030CM package SMD Crystal Seiko Epson MC-506 http://media.digikey.com/pdf/Data%20Sheets/Epson%20PDFs/MA-505,506.pdf, hand-soldering, 12.7x5.1mm^2 package SMD Crystal Seiko Epson SG-8002CE https://support.epson.biz/td/api/doc_check.php?mode=dl⟨=en&Parts=SG-8002DC, hand-soldering, 10.5x5.0mm^2 package SMD Crystal Seiko Epson SG-210 https://support.epson.biz/td/api/doc_check.php?mode=dl&lang=en&Parts=SG-210SED, hand-soldering, 2.5x2.0mm^2 package SMD Crystal MicroCrystal CC5V-T1A series http://cdn-reichelt.de/documents/datenblatt/B400/CC5V-T1A.pdf, 4.1x1.5mm^2 package SMD Crystal EuroQuartz EQ161 series http://cdn-reichelt.de/documents/datenblatt/B400/PG32768C.pdf, hand-soldering, 3.2x1.5mm^2 package SMD Crystal Oscillator Seiko Epson SG-8002CE https://support.epson.biz/td/api/doc_check.php?mode=dl&lang=en&Parts=SG-8002DC, 3.2x2.5mm^2 package SMD Crystal Seiko Epson SG-8002LB https://support.epson.biz/td/api/doc_check.php?mode=dl⟨=en&Parts=SG-8002DC, hand-soldering, 5.0x3.2mm^2 package SMD Crystal Seiko Epson MC-506 http://media.digikey.com/pdf/Data%20Sheets/Epson%20PDFs/MA-505,506.pdf, hand-soldering, 12.7x5.1mm^2 package SMD Crystal SERIES SMD3225/4 http://www.txccrystal.com/images/pdf/7m-accuracy.pdf, 3.2x2.5mm^2 package crystal Epson Toyocom FA-128 (https://support.epson.biz/td/api/doc_check.php?dl=brief_FA-128&lang=en), 2x1.6mm^2 package Diode SMD 0201 (0603 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size source: IPC-SM-782 page 76, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: 5273-03A example for new mpn: 39-30-0140, 7 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 EH series connector, BM12B-SRSS-TB (http://www.jst-mfg.com/product/pdf/eng/eSH.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 2 times 0.5 mm² wires, basic insulation, conductor diameter 1.7mm, 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 Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 55560-0201, 20 Pins per row (https://www.hirose.com/product/en/products/FH12/FH12-24S-0.5SH(55)/), generated with kicad-footprint-generator Harting har-flexicon series connector, SM02B-GHS-TB (http://www.jst-mfg.com/product/pdf/eng/eGH.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 3.3mm, height 8, Wuerth electronics 9774040960 (https://katalog.we-online.de/em/datasheet/9774040960.pdf,), generated with kicad-footprint-generator Harwin Male Horizontal Surface Mount Tactile Switch for High-Density Mounting, 4.3mm height, https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3fs.pdf Surface Mount Double Row 2.54mm (0.1 inch) Pitch.

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