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    Poor receive, Ranger/Galaxy radio chassis, acts like no AGC

    I have two radios that I have been looking to repair. The first is a Lincoln II that has poor receive that I tricked into performing fair by substituting some resistor values around the op-amp AGC circuit. I thought it was a poor rf amp transistor and replaced that small surface mount device...
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    Transistor push-pull common emitter amplifier capacitors on collectors

    On common emitter push-pull transistor amplifiers there are capacitors employed from the collectors of the power transistors to ground on most amplifiers. They are usually soldered right at the output transformer. They range from 100pF to around 330pF. What is the purpose of these...
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