Re: [Elecraft] Setting the AGC Threshold on K2

2005-12-19 Thread Geoffrey Mackenzie-Kennedy
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

RE: [Elecraft] Setting the AGC Threshold on K2

2005-12-19 Thread Don Wilhelm
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

Re: [Elecraft] Setting the AGC Threshold on K2

2005-12-19 Thread Gregg R. Lengling
://www.milwaukeehdtv.org - 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