Many thanks for the generous comments and suggestions. I believe the cables to the power supply were a bit loose. The situation improved quite a bit: 13.1 v o 11.6 v on the K2 display. The jumper on the control board is on the INT position. I did not change it.
If I put a DMM at the power supply terminals I read: 13.6 v and then 12.6 v on transmit. The RF reading on the K2 display reaches full scale when I transmit. Are these voltage drops reasonable ? Thank you. 73 Manuel LU5OM CT4IK K2/100 # 5310 _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com