Kihwal - Check Pin 2 of V17 for resistance to ground (270 Ohms) and voltage ~7.5 VDC.
73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs <www.k4oah.com> Kihwal Lee wrote:
My TR-4C's s-meter points to S-9 under no signal condition. Adjusting the sensitivity and the zero pot won't correct it. I also noticed its reduced sensitivity compared to other Drakes that I have. The s-meter moves as expected when RF gain is lowered. Checked/replaced all tubes. I also checked the RF gain pot and it's fine. Resistances and voltages on the V13 12AX7 pins seem okay. I would appreciate any suggestions. Kihwal, K9SUL _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
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