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Post PI master in Sunn Sceptre?

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  • Post PI master in Sunn Sceptre?

    One of my Sunns isn't absolutely virginal and isn't in fantastic condition (neither are my fault), so I've decided a little monkeying under the hood is okay. I want to install a PPI master. If I like it, I would install the new pot in the reverb control hole. The reverb tank doesn't work properly on this amp, and I don't much care for spring reverb anyway, so....

    I'm a bit of a novice, so I wanted to get the okay from you guys. Since the Sunn's PI is different from the usual, I want to make sure the circuit will work okay.

    Here's the Mission amps master:

    And here's the Sunn schematic:

  • #2
    You should probably use a dual 100K pot. The resistors described as 33K to 100K can be zero to 10K.
    WARNING! Musical Instrument amplifiers contain lethal voltages and can retain them even when unplugged. Refer service to qualified personnel.
    REMEMBER: Everybody knows that smokin' ain't allowed in school !


    • #3
      Ah, good. I have a 100k dual on hand. Thanks, thud.