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thyristor

  1. Carbsandcaps

    Thyristor turn on voltage.

    Working on a technics su-v909. The previous owner was charged a $500 “repair” to the protection circuit, there’s some resistors soldered to the board underneath. Both class A and the computer drive bulbs were out. Knowing that they are part of the protection circuit I replaced them. I’m...
  2. PE9ZZ

    Sansui AU-719: how does the protection work?

    I have this amp on my workbench and it went into protect after some time. As per complaint. The thyristor SCR601 was bad. I should have replaced it with a replacement (MCR100) but since this was not present in my tray and there is time pressure I replaced it with a DIY thyristor consisting of an...
    • PE9ZZ
    • Thread
    • 2sf656 au-719 mcr100 protection circuit scr601 thyristor
    • Replies: 13
    • Forum: Exclusively Sansui
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