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gz34

  1. tutor_turtle

    SA-300 inrush limiter question

    I have a heavily modified SA-300 from a top notch tech in Canada (Sams Audio). The rework is some of the best I've seen. All caps, rectifiers, sockets.. the works all neatly laid out. There issue is the GZ34 rectifier tubes are intermittently sparking on startup. New tubes did not solve the...
    • tutor_turtle
    • Thread
    • fisher gz34 inrush current inrush limiter sa-300 thermistor tube audio
    • Replies: 6
    • Forum: Fisher
  2. R

    Thoughts on restoring a Dynaco ST70

    Hi everyone, I recently came in possession of an ST70 factory wired, all original components. Other than a hum in one of the channels that I traced to the 7199 tube on one side, it's fully functional. I'm very comfortable around electronics but I am relatively new to tubes. I want to ask you...
    • radu_c
    • Thread
    • 7199 dynaco gz34 restoration st70 tubes
    • Replies: 62
    • Forum: Tube Audio
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