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transformer problem

  1. BassBias

    Voltage selector of a Marantz 2226B amp

    I changed the universal voltage selector from 220V to 240V mode on my Marantz 2226B (and also replaced all fuse lamps with leds). Several minutes after switching the amp on it produced an ugly smell and a cloud of smoke and died. Fuse F001 (1.6AT) was blown and the voltage transformer was still...
    • BassBias
    • Thread
    • 2226b burning smell filter cap marantz transformer problem voltage setting (220v vs. 240v)
    • Replies: 41
    • Forum: Marantz Audio
  2. Solheim

    Tube Amp Mystery Failure

    I have an Audio Research VT 130 that is presenting odd symptoms. It has blown a small resistor (see pic) twice- once dramatically. Sometimes you can hear buzzing in the left channel. Here's the odd thing- The V5 and V7 tubes glow brighter and dimmer at random times. (the rest of the tubes are...
    • Solheim
    • Thread
    • amp failure red plating transformer problem tube amp amplifier
    • Replies: 31
    • Forum: Tube Audio
  3. A

    My amplifier in not working.. Even i didnt switched ON.. how to test the transformer

    how to test my transformer.. please help.. i have a doubt on transformer...
    • Anto Besline
    • Thread
    • amplifier not working testing coils transformer transformer connection transformer problem
    • Replies: 1
    • Forum: DIY
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