I don't believe K3S schematics are available yet, but the K3 schematics are probably close and may help. http://www.elecraft.com/manual/K3_Schematics_Jun_2010.pdf 73, Bill W4ZV -- View this message in context: http://elecraft.365791.n2.nabble.com/diagram-K3S-tp7623381p7623382.html Sent from the Elecraft mailing list archive at Nabble.com.