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fixed

  1. K

    Velodyne SPL1200 Ultra subwoofer repaired

    My 2014 Velodyne SPL1200 Ultra died a few months back and today I decided to investigate the failure. The fuse had blown to pieces but the boards all looked perfect, no bulging capacitors or burnt resistors. On checking the full wave bridge rectifier (p/n KBPC1506W) there was a short circuit on...
    • Kev Minns
    • Thread
    • fixed velodyne spl subwoofer
    • Replies: 2
    • Forum: Speakers
  2. R_F

    Things you should know about tubes — Robert Tomer

    Something may have changed since 1960. If so, please correct anything that has with direct sourced evidence. I made screen captures from parts of the book to try to focus mainly on the most relevant bits to audio. I edited out extraneous stuff like references to figures not shown. I did this...
    • R_F
    • Thread
    • bias cathode fixed longevity tips tomer tubes
    • Replies: 33
    • Forum: Tube Audio
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