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well, I replaced the bad tube,found an out of tolerance resistor and a dead resistor in the tuning eye circuit. Tuning eye is good now. I still think the fm sounds slightly out of tune. The rider's info says that the discriminator transfomer has a calibration to it. The picture of the chassis does not show a transfomer for it and neither does the electrical diagram. The 6h6 disc. tube is good and the resistors and caps around it check fine.If I hook a cd player to the phono input it is extremely clear and sounds great. Is the circuitry just not able to get the fidelity I am thinking I should get?
Last edited by radio nut; 11-09-2011 at 02:07 PM.
Reason: more input
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