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Post by Marc on Oct 1, 2008 22:18:51 GMT -5
Going through my D201 checking the AGC voltage on green and white wire. Shows .509 insted of .3 volts
Bad cap ,resistor diode???
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Post by 2600 on Oct 6, 2008 20:25:52 GMT -5
Wide tolerances. That reading is typical, but not carved in stone. It can be affected by one tube that is only a little weak, or the drift of resistance value from parts in the AGC circuit.
If the radio hears weak signals, and doesn't overload on strong ones, I wouldn't worry about that particular reading.
And if it has trouble doing either of those two things, that would be something to worry about. A zero-signal AGC reading can be influenced by stray noise that the radio picks up from a nearby TV, computer, or the switchmode regulator inside a nearby wallwart, or even a compact fluorescent lamp. If putting the bottom cover back on reduces this reading, noise pickup is a factor.
73
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Post by Marc on Oct 6, 2008 23:23:26 GMT -5
Thanks seams to be working. but wont know till I put new tubes
in and have it aligned
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