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  • Variac

    In honor of Mr. Ed -

    For those curious about using a variac with their tube amp (Marshall):

    I modded my amp (JTM45RI modded to somewhat plexi specs) back in 2013 to run a variac at about 100v (90v was too mushy for 50 watter) by changing the bias resistor.

    I biased the amp after I had dropped the voltage, so the 6CA7s were idling around 40mAs.

    It definitely does something to the tone... slightly squishier with a slight change in the "crunch".

    Here's a quick n dirty clip I did back then with 1 SM57 on speaker, Flanger added in DAW (no EQ or other polish).

    Guitars are me, backing track is Al & Mike:

    Lefty Lounge Lizard's Guitars & Amps Extravaganza

    Fastest ears in the West

    COVID-19: The Moronavirus.

    My Soundcloud

  • #2
    That sounds so cool !
    is it massively loud in the room?
    what cab/speaker(s)?
    gear list in profile

    "no seymour - no tone ... know seymour - know tone!"

    Is it not the glory of the people of America that, whilst they have paid a decent regard to the opinions of former times and other nations, they have not suffered a blind veneration for antiquity, for custom, or for names, to overrule the suggestions of their own good sense, the knowledge of their own situation, and the lessons of their own experience?" - James Madison - Federalist #14


    • #3
      LLL hats off man, EVH = official Saint in the Church or rock'n'roll.


      • #4
        That sounds cool! Could use a little more mids but the vibe is totally there.