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new to tubes

  1. AnyDayNow

    Fisher 80-T DC Voltage low at both 6X4 tube rectifier and PreAmp Selenium bridge rectifier

    I’m just getting started trying to revive a new-to-me Fisher 80-T Tuner / Preamp. I carefully powered it up (isolation transformer + Variac + dim bulb current limiter) giving the capacitors hours to form, and it worked —kind of. The AM seemed very noisy, the FM pulled in stations, but the meter...
    • AnyDayNow
    • Thread
    • new to tubes rectifer tube selenium rectifier
    • Replies: 9
    • Forum: Fisher
  2. whittington

    Bogen DB20 project with my son

    Hello! This is my first post. I am new to tubes somewhat. I recapped a Fisher 500c recently and my ears have been blessed. More on that later. I have had two old Bogen DB20 s sitting in the garage for about ten years waiting to be worked on. Given to me when I did not own a soldering iron if you...
    • whittington
    • Thread
    • bogen bogen db20 bogendb20 brass faceplate new to tubes tube amp
    • Replies: 5
    • Forum: Tube Audio
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