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capicators?

  1. Garry777

    Adcom GTP-350 PreAmp/Tuner with 60 HZ Hum

    I've had this Adcom GTP-350 solid state pre-amp for about 7 years and the 60Hz hum has gotten a little louder in the past year. When listening with headphones the hum is noticeable (both channels equaly) between songs and increasing the volume does NOT increase the volume of the hum. I opened...
    • Garry777
    • Thread
    • 60 hz hum adcom gtp-350 capicators?
    • Replies: 7
    • Forum: Solid State
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