Thanks for clarifying.
So what can I understand from a small white label on the board, saying this: ? 17226 0812B OO31 I Am asking for the proper schematics because I can’t locate a certain 270 Ohm resistor on my physical PA board. This resistor appears on a “REV Ä” schematics from 02/16/11 (it’s part of the input attenuator I think). Isaac, 4Z1TL מאת: w4sc <[email protected]> נשלח: Wednesday, 8 July 2020 16:28 אל: [email protected]; [email protected] נושא: [Elecraft] Schematics for KPA500 REV "B" The “Rev” that is silkscreened on the board reflects the revision level of the bare board, NOT the assembly revision level of the module which will reflect changes made to the module and could any component, hardware, or circuit changes. The module revision level should be reflected on an attached label, written on the pwb (i.e. “ASSY C2”) in a conspicuous location, or not(?). Ben W4SC Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

