Hello Jeff,
Have you tried measuring the voltage at the wiper terminal of R1 (Control
Board) or RP6 pins 4/5? These points are all connected together along with
U2 pin 5, so you should get the same voltage +- a couple of millivolts at
each of these points. The voltage at all these points
Jeff,
Try measuring the voltage at U2 pin 5 again making certain your probes both
have good contact.
The voltage at U2 pin 5 is determined only by a resistor network - if it is
still quite low, check the voltage on the 8A line - the output of regulator
U4 (upper leg) - it should be 8 volts.
If
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- Original Message -
From: Don Wilhelm [EMAIL PROTECTED]
To: jrb [EMAIL PROTECTED]; elecraft@mailman.qth.net
Sent: Monday, December 19, 2005 7:45 AM
Subject: RE: [Elecraft] Setting the AGC Threshold on K2
Jeff,
Try measuring the voltage at U2 pin 5 again making certain your
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