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vta st-120

  1. ronheadfi

    vta st 120 - no voltage on rectifier pin 2

    A week ego my vta st 120 (that fwiw was built by someone else) was working fine. It was obvious that one of the power tube was dying (crackled and was microphonic). Then it red plated and took out the bias resistor. I replaced the bad tube and the resistor. After that I had an intermittent...
  2. Jeepnmon

    Help with new to me ST-120 Stereo Amplifier - Scratchy noise in right channel

    Hi all, I recently purchased a VTA ST120 from a member that looks amazing and it has been working great. I knew there was a possible issue with it as disclosed by the seller in our discussions and thought this could be a great way for me to learn about tube amplifiers by jumping right in. Not...
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