[Collins] KWM2-A issue

Dr.Gerald Johnson geraldj at ispwest.com
Wed Feb 9 20:59:54 EST 2005


Check the RF gain control. Then the power supply bias supply. RF gain 
control comes from the bias supply. The original bias rectifier was selenium 
and has run out of age. Its bad. It was never that good. Also check the 
bias adjust pot and the bias supply filter capacitor.

73, Jerry, K0CQ, Technical Advisor to the CRA

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Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
Reproduction by permission only.






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