[Elecraft] K3: pwr out - does this sound right?

[DOUGLAS ZWIEBEL]

After reading the recent comments on POWER OUT, I decided to check mine.

Using the voltmeter on the K3....

Zero power out:  13.6v
5 watts out:  13.3v
100 watts out:  13.1v

The drop from 13.6 to 13.1 for 100w doesn't seem so bad.  But why the
drop when running only 5 watts out...seems out of line compared to the
100w level drop.

Does the 5 watt output V drop seem right to you?  Comments?

PS is 25-30 year old Astron RS35A

Thanks,
Doug KR2Q