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williamson design

  1. AnyDayNow

    Fisher 70A design vs Fisher 30A design

    I’m trying to learn how my Fisher 70A tube amp works, and I chosen to work through the excellent ‘Elmer education’ offered recently by Mark on the Blueglow Electronics YouTube channel in which he walks through a Fisher 30A amplifier. I believe the Fisher 30A (1959-) is an example of a...
    • AnyDayNow
    • Thread
    • fisher amps williamson design
    • Replies: 26
    • Forum: Tube Audio
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