Is the P3 power in fused internally? Or would it be prudent to fuse the power in if not using the 12 volts from the K3? 73, John N1JM -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-12-volt-input-fused-tp5545998p5545998.html Sent from the Elecraft mailing list archive at Nabble.com.