[Elecraft] K3 Voltage drop

[Ron W3ZV]

Okay, confession time. My VFO B display area rarely displays anything but frequency. Doing the NAQP RTTY today, I had a brief attack of curiosity. Wanted to see how the PA temperature was doing. On the way I passed the voltage display and stopped for some reason. Noted that the voltage on RX was 13.6. Dropped to 12.6 with 75 watts RTTY TX. Supplied power cord to an Astron RS-35M. I am concerned that the drop may be excessive. I'd like to make sure that there is a problem before I start tearing into things. Cause for concern?

Ron W3ZV