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fm mpx

  1. goldswimmerb

    Fisher 500T FM MPX Issues

    working on a 500T with issues in the MPX section (well, actually its a 440T with the guts of a 500T). I have never seen anything like the issue it's having so I am looking for suggestions. Basically, I am able to hear what I think is the 19KHz Tone, the L channel comes through clear with the...
  2. Moonwatcher

    Calrad tube tuner (c. 1965) with volume imbalance

    So this gutsy sounding little Calrad 202 tube tuner has a problem: the right side is far less gutsy than the left, and there is definitely a channel volume imbalance. Because I could immediately see that they were mismatched and not exactly what is called for on the chassis, I tried replacing...
    • Moonwatcher
    • Thread
    • 202 calrad channel imbalance fm mpx tube tuner
    • Replies: 2
    • Forum: Tuners
  3. goldswimmerb

    Fighting with a 2275s FM MPX

    Hey guys, so I'm working on a 2275 and I noticed that I cannot get an FM stereo signal, I've checked using my FM transmitter I have that it is indeed the FM never switching to stereo, rather than it being the FM Stereo bulb driver being dead. I've been chasing ghosts for the last hour so I am...
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