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Silvertone 1330 - What's this mod?

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  • Silvertone 1330 - What's this mod?

    A friend brought over an old Silvertone 1330. It looks like a widow maker for sure. I told him it needs an isolation transformer to be safe. The output of the amp appears to be modded. Anyone seen an output mod like this before?
    Attached Files

  • #2
    Without knowing what the circuit looks like, or what may have been connected to all those loose wires, I'll hazard that the owner wanted reverb.

    Doesn't cost me anything to be wrong
    If it still won't get loud enough, it's probably broken. - Steve Conner
    If the thing works, stop fixing it. - Enzo
    We need more chaos in music, in art... I'm here to make it. - Justin Thomas
    MANY things in human experience can be easily differentiated, yet *impossible* to express as a measurement. - Juan Fahey

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    • #3
      My guess it was done to use the amp as a distortion device when cranked into another amp.
      Last edited by olddawg; 03-13-2020, 06:10 AM.

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      • #4
        Here are the guts of it. I'm pulling the OT and gonna test.
        Attached Files

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        • #5
          Mod gone. Amp restored and sounding good!
          Attached Files

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          • #6
            Excellent! Now spend $12 and buy an isolation transformer for it.

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            • #7
              Originally posted by olddawg View Post
              Excellent! Now spend $12 and buy an isolation transformer for it.
              Pretty sure he did that already.

              (from the post above)
              Click image for larger version

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              "Yeah, well, you know, that's just, like, your opinion, man."

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              • #8
                Cool.. the picture was distorted on my device.

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