[Elecraft] K2 s/n 4276 Output Power Instability

K2 s/n 4276 Firmware Revision(s): 2.04P 1.09 After having a previous issue with the VCO alignment (p. 61), construction went forward without a hitch. At this point, I figured that any gremlins had been banished. Not so. Another pesky gremlin has reared it's ugly head. During transmitter

Re: [Elecraft] K2 s/n 4276 Output Power Instability

William, You said 40, 30 and 20 worked once, but not now - that says any problem is in an area shared by all bands. The first thing to do would be to check the coax cables, any adapters and the dummy load for a bad connection. I prefer to reduce any extra things in the setup because they too