[Elecraft] 40M Tx Alignment Hi Current Concerns

[Gil Stacy]

I am attempting the 40M Transmitter alignment in K2 #3104 and have high current concerns.  With the power dial set at 2.0 watts,  in TUNE mode, I peaked L1 and L2 to 3.6 a max of 3.6 watts.
I set the power dial to 5 watts, entered TUNE mode, and had a voltage drop from 11.7 V to 10.8 with a current drain increase from .22 to 2.14 amps.  Recommended amps in TUNE mode are 1.3-1.6 amps.
At 10 watts in TUNE mode, the voltage drop is 1 volt with a current drain from .22 to 2.5 amps.  Reommended amps in TUNE mode are 1.8-2.0 amps.
Voltage checks,  recommended value in parenthesis where differs from actual reading.
Q6  B ok, C 10.8 (13.3),  E  .27 (.4)
Q7  B ok, C 11.16 (13.4), E ok
Q10  S 1.5 (1.6), G ok, D 1.5 (1.6)
Q11 all ok

Q13  E ok, B ok, C  6.1 (7.5)
Q20  S ok, G ok, D 31mv (0.0)
Q24  G ok, S .81 (1.2), D .87 (1.3)
 U9 1  ok,  2   4.8 (6.9),  3  5.02  (6.9),  4  31mv (0.0),  5  35mv  (0.0) ,  6  5.3  (6.9),  7  10.5  (13.8)
 U10  ok
 Q5 is untested as I have not pulled off the heat sink.Comments and suggestions would be appreciated. Thanks.
Gil KG4VCG

 







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