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Marshall 1987X U spec. USA

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  • Marshall 1987X U spec. USA

    This amp looks stock but the grid resistors are 2.2K ohm 4 watt.
    I can't find a schematic that matches this.
    Should I change these to 1K 5watters?

  • #2
    Does it work OK this way? Is there some compelling reason to "fix" an amp that is working?
    Education is what you're left with after you have forgotten what you have learned.

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    • #3
      Dead

      Amp is dead. Output tubes are shot.

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      • #4
        Fair enough, I'd fix it as it sits, then consider new screen resistors once it works. I don't believe in modding amps that are not working already. Too much potential to add to the trouble or confuse the troubleshooting.
        Education is what you're left with after you have forgotten what you have learned.

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