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As proposed, I started this thread for all to share your KGSSHV Carbon build experience and to exchange Q&A. This is a natural follow up thread to the Carbon Group Buy thread. Here are the version of Gerber files used for the boards in the group buy: kgsshvcarbonv5.zip (amp board) kgsshvpssicfetdual2new.zip (GoldenReference HV power supply, all-in-one version) kgsshvpssicfetsinglenewrightfat.zip (GoldenReference HV power supply, B+ and bias) kgsshvpssicfetsinglenewleftfat.zip ( GoldenReference HV power supply, B- and 7815/7915 based +/-15V regulator) goldenreference4.zip (GoldenReference LV bipolar power supply) goldenreference4plus.zip (GoldenReference LV V+ power supply goldenreference4minus.zip (GoldenReference LV V- power supply) bias.zip (stand alone regulated Pro and Normal bias supply) I (or others) will follow up with BOM. EDIT 10/8: Updated the BOM and Mouser project for the Carbon V5 to use Vishay RN60D 174K resistors for the two 175K positions. The correct part to use is Mouser part # 71-RN60D1743F. It's a mil-spec resistor that is actually 1/2W even though it's listed as 1/4W. The previously listed Xicon is 1/4W rated and not sufficient for these positions. EDIT 10/13: Updated the BOM and Mouser project for Carbon V5 to use 3M 961102-6404-AR for the servo jumpers. Note that the BOM does not match the shared Mouser project due to parts availability at Mouser. I apologize for the errors in project/BOM. EDIT 9/10: link to shared Mouser project for the GR HV Dual. Need to add 2 LT1021-10 and missing parts not available at Mouser. Please help check for errors. http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=54687aa8fa EDIT 9/12: link to shared Mouser project for the GR LV Dual. Need to add 2 LT1021-10 and your choice of insulation kits to mount uninsulated sands. Please help check for errors http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=b6d687c7f7 EDIT 9/20: link to shared Mouser project for the Carbon V5 (1 channel only). Please help check for errors. http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=7F837B24AA EDIT 10/19: GR HV Dual BOM in spreadsheet. More complete than the shared Mouser project above. GR HV BOM_Oct19.xls EDIT10/11: GR LV Dual BOM in spreadsheet. More complete than the shared Mouser project above. GR LV BOM_Oct 11.xls EDIT 12/11: Carbon V5 BOM (1 channel) in spreadsheet, uses KOA Speer resistors. HV Carbon V5 BOM_Dec11.xls