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vintage tube amp

  1. J

    McIntosh MC30 Plate Voltage Problem

    I recently rebuilt power and bias circuits on MC30. The caps have been replaced. The 6L6GC grid is -44V but I'm reading -10V to -12V at the plate. So negative voltage in a spot where rectified B+ voltage should have been filtered from the power supply. This does not look, feel or sound good to...
  2. E

    Console tube amp help

    Have a vintage sylvania console stereo tube amp that works well but has had a back ground hum in it every since i got it -------ive tried many things and it sounds great but still has this back ground buzz or hum that does not change with volume and even with no input the amp has this same back...
    • Eddie hy fi
    • Thread
    • sylvania console tube amp vintage tube amp
    • Replies: 59
    • Forum: Tube Audio
  3. Little Wolf

    My Homebuilt "Mid-Century" Style Amp

    Hi All, This is my first AK post. Just wanted to share a recently completed project of mine: a homebuilt transistor-tube hybrid integrated stereo amplifier in the style of an early 1960's household hi-fi stereo set. The set was built as a modular system; with the exception of the power supply...
    • Little Wolf
    • Thread
    • 12ax7 diy diy project homebrew husky electric hybrid amp jlh 1969 tube amp tube amp build vintage tube amp
    • Replies: 28
    • Forum: General Audio Discussion
  4. whittington

    IEC mod opinions please - Bogen DB30

    We have two beautiful Bogen amps that my boy and I are making into monoblocks. They are in very excelent shape cleaning up very nicely for sixty year old units. (Pics to. Come) As we plan, we are contemplating the viability and "moral" considerations of adding an IEC plug in. Our considerations...
    • whittington
    • Thread
    • a/c cord upgrade ac power cord grounded cord upgrade shock vintage tube amp
    • Replies: 10
    • Forum: Tube Audio
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