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On Nov 12, 5:11*pm, tchrme wrote:
Partial success on this stubborn problem and it would have to be my favorite rcvr too. I traced the thunderstorm crashing sounds down to the 2nd converter subchassis. After I pulled it again, I replaced all the caps and the resistors since it is such a pain to access. I powered it up on test leads to the main chassis and still heard the frying thunderstorms. A 22k resistor that I replaced was starting to overheat and turned brown. I checked the one I took out and it too was burned looking. So.... I need help on what would cause the overheated resistor (R24). I can email a schematic to anyone who can help me out on this. I double checked all wiring and parts were replaced one at a time. Help. *Thanks ahead of time. 73 Mike KF6KXG Based on you other posts, I don't think you found the source of the problem, only another symptom. If the noise stopped when you pulled the tube/tubes, Did you try pulling them to stop the resistor overheating? Replace the tube/tubes with a different set, one at time. Watch the resistor for overheating, again. If you have indeed replaced all other components, the one you have not commented on are the tubes. Sounds like a grid to plate short somewhere. I have no familiarity with that receiver. Paul, KD7HB |
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