[Elecraft] K2 Alignment and Test, Part III: High current

[K.Kishimoto]

Power supply: SEC 1223 (23A)
Unit type: K2, no options installed
Passed Alignment and test, Part II
Passed all resistant checks

Baseline voltage and current (backlight on)
13.5v, 0.24A

Transmit voltage and current into Elecraft 20W Dummy load (Using TUNE 
function)
At 5W: 12.7v, 1.84A
At 10W: 12.1v, 2.98A

The current draw seems far too excessive given the suggested range in the 
manual. What components could potential cause this problem? The voltage drop 
seems high as well given the capacity of the PSU.

Thanks,
Kathy
*Merry Christmas!*