My KAT goes on with the bench power supply. Then I turn on the K3 and the the KPA. ----- Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-KPA500-KAT500-revs-4-83-1-38-1-58-tp7584490p7584553.html Sent from the Elecraft mailing list archive at Nabble.com.