Re: [Elecraft] K3 12v RCA rear socket.

Peter, There is no 'setup' for the AUX 12V output - I think yours is broken. If you want to make some measurements, take a look at the lower right corner of RF Board schematic sheet 3. The RFC and resettable fuse are thru-hole components, so troubleshooting should be easy. 73, Don W3FPR On

[Elecraft] K3 12v RCA rear socket.

Hi, I've just hooked up my new hupRF K3 IF buffer to the 12v RCA socket at the rear of the K3 expecting to see some volts. The buffer requires 12v at 10ma to drive it. Nothing. Zilch. I've perused the instructions and Freds book but cannot see if I have to enable this function. Its either that