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19 commits » 2bd01a1ff2 Add schematic, start on PCB Added input resistor for sync; placed everything on PCB choices could also use a modified version of NL4MD-V with 8 vertical PCB mount, https://www.neutrik.com/en/product/nc4fbv A Series, 5 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, steel retention lug, horizontal PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch 2.00u PCB Cherry MX keyswitch, 1.50u, http://matias.ca/switches/ Matias ALPS keyswitch 1.50u plate Cherry MX keyswitch ISO enter 4-bit rotary coded switch, gull wing, Gray code, https://www.nidec-copal-electronics.com/e/catalog/switch/sh-7000.pdf SMD SMT SPST EVQPUK EVQPUB SMD SMT HCMOS Miniature Crystal Clock Oscillator TXCO Fordahl DFA S1-KHZ/LHZ, http://www.iqdfrequencyproducts.com/products/details/iqxo-70-11-30.pdf, 14.8x9.1mm^2 package Mminiature Crystal Clock Oscillator TXCO Fordahl DFA S7-K/L, http://www.iqdfrequencyproducts.com/products/details/iqxo-70-11-30.pdf, hand-soldering, 7.0x5.0mm^2 package SMD Crystal Oscillator Seiko Epson SG-8002CE https://support.epson.biz/td/api/doc_check.php?mode=dl⟨=en&Parts=SG-8002DC, 3.2x2.5mm^2 package SMD Crystal 2012/2 http://txccrystal.com/images/pdf/9ht11.pdf, hand-soldering, 2.0x1.2mm^2 package Ceramic Resomator/Filter Murata SFSKA, http://cdn-reichelt.de/documents/datenblatt/B400/SFECV-107.pdf, hand-soldering, 4.5x2.0mm^2 package SMD Crystal EuroQuartz MT series http://cdn-reichelt.de/documents/datenblatt/B400/MT.pdf, 3.2x2.5mm^2 package Miniature Crystal Clock Oscillator (XO) (https://www.diodes.com/assets/Datasheets/FN_3-3V.pdf Oscillator Crystal SMD SMT Miniature Crystal Clock Oscillator TXC 7C series, http://www.txccorp.com/download/products/osc/7C_o.pdf, 5.0x3.2mm^2 package Ultraminiature Crystal Clock Oscillator TXCO Fordahl DFA S1-KHZ/LHZ, http://www.iqdfrequencyproducts.com/products/details/iqxo-70-11-30.pdf, 14.8x9.1mm^2 package Mminiature Crystal Clock Oscillator EuroQuartz XO53 series, http://cdn-reichelt.de/documents/datenblatt/B400/XO53.pdf, hand-soldering, 5.0x3.2mm^2 package SMD Crystal Oscillator Seiko Epson MC-505 http://media.digikey.com/pdf/Data%20Sheets/Epson%20PDFs/MA-505,506.pdf, 12.7x5.1mm^2 package SMD SMT HCMOS Miniature Crystal Clock Oscillator TXCO Fordahl DFA S11-OV/UOV, http://www.iqdfrequencyproducts.com/products/details/iqxo-70-11-30.pdf, 7.0x5.0mm^2 package FOX SMD Crystal MicroCrystal CC8V-T1A/CM8V-T1A series http://www.microcrystal.com/images/_Product-Documentation/01_TF_ceramic_Packages/01_Datasheet/CC8V-T1A.pdf, hand-soldering, 2.0x1.2mm^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, 5.0x3.2mm^2 package SMD.

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