[Elecraft] Weird K-3 Power Behavior

[Pete Smith N4ZR]

I have a K-3 driving a KPA-1500, and have started seeing some strange 
behavior.  After I adjust the power level control on the K-3,. even a 
little (like 33 to 31 watts), the driving power delivered to the 
KPA-1500 starts much below the K-3's indication, and only gradually 
increases to what would be expected at the K-3's power setting.  This 
behavior is apparent in CW, but is more dramatic in FT* using TXData, 
where it can take several 12-second transmit intervals to reach full 
power.  Touch the K-3's power control even a little, and this cycle 
starts over again at reduced power, gradually returning to full.

-- 
73, Pete N4ZR