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sj-502a

  1. J

    Jolida SJ-502A

    I just bought a SJ-502A and trying to troubleshoot. The schematics I found don't exactly match up 100% and want to make sure the voltages are correct before shoving $500 + in tubes into it seeing how it is 20 years old or so. So at the moment B+ is 530v, -B is at -72v, +B1 is at 502v and +B2 is...
    • JMinardi
    • Thread
    • jolida sj-502a tube amp amplifier
    • Replies: 6
    • Forum: Tube Audio
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