[Elecraft] K-2 Alignment & Test, part 1 question

[Larry Wright]

I have completed all items of Alignment and Test, Part 1 with one exception - "Setting the AGC Threshold".  Instead of the expected 3.8 volts on pin 5 of U2, I could only get 3.6 volts.  The adjustment range of trimmer R1 was 2.5v to 3.6 v.  The 5 volt regulator output is 4.9v.  RF gain control was fully clockwise as called for in the manual.  Any ideas on why it would only go to 3.6 volts and is this critical?  I left it at 3.6v and proceeded with the remaining alignment and test (part 1) procedure without incident.

Another observation was that the  8 volt regulator was a bit low at 7.6v.    The voltage and current as measured with the K-2 metering circuits were 13.6v and 80 ma.  An external current meter should about 100 ma.

Any help will be much appreciated.

Larry
N4QY
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