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7.5x5.0mm^2 package SI570, SI571, Programmable oscillator, Standard SI570 SI571 Programmable oscillator Standard SMD Crystal Oscillator 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 TXC 9HT11 http://txccrystal.com/images/pdf/9ht11.pdf, 2.0x1.2mm^2 package Ceramic Resomator/Filter Murata CSTCE, https://www.murata.com/en-eu/products/productdata/8801162264606/SPEC-CSTNE16M0VH3C000R0.pdf SMD SMT Miniature Crystal Clock Oscillator TG2520 series, https://support.epson.biz/td/api/doc_check.php?dl=app_TG2520SMN&lang=en Latest commits for branch pcb_finalization re-re-remove the mysterious extra trace main Add scad for v3.2 Stuff all teh scad files in aac0a4a5b4 Notes from debugging Clock POT is the decade counter expects CLOCK to pass 1/2 of V+ (i.e. 6v) but many external clock sources cycle between 0v and 5v or even much less. This can be the same as Infineon_EasyPIM-2B, https://www.st.com/resource/en/datasheet/a2c25s12m3.pdf 35-lead TH, ACEPACK 2 CIB, PressFIT, https://www.st.com/resource/en/datasheet/a2c50s65m2-f.pdf 25-lead TH, SDIP-25L, https://www.st.com/resource/en/datasheet/stgips20k60.pdf Valve ECC-83-1 round pins Valve ECC-83-2.

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