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Invader 60 1970's Head

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  • Invader 60 1970's Head

    I have an Invader 60 PA Head from the early to mid 70's that I have repaired and it sounds very close to a Marshall 50 watt from the same era but it has too much low end and not enough gain for my taste. Anyone have a schematic? If not I will have to draw one and post it here for suggestions on component values to change to achieve the sound I am looking for. It uses 3 12ax7 tubes for the preamp and a pair of EL34s for the output.
    Thanks

    Larry

  • #2
    Invader 60 amp

    Hi there,
    I also have an Invader 60 which is currently very sick- although it isn't the valves. Since this happened I have been searching and asking, but I can't find any info on this specific amp on the Net.

    Do you know who manufactured them, there are no stickers or plates left on the amp, I don't even know if it is British.
    Cheers
    Dolo

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    • #3
      What is wrong with it? Maybe I can help my using mine for comparison. It is in good working order.
      Is yours the PA model with 6 inputs?

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      • #4
        Invader 60

        Hi there, Unclebubba

        Sorry about the delay in replying, but work gets in the way of life....

        I do an occasional gig in a Shadows tribute band and use the Invader for bass guitar - being Shadows and smallish gigs its never used hard.

        It is the one with 6 inputs and at a recent gig it just died - very little volume on any input. I tried it again when I got home and it now sounds like a poor heavy metal imitation with lots of distortion and hardly any volume.

        Took all five valves to a specialist and all is definitely well with them, but he had no idea beyond that on the grounds there were many other things to go wrong.
        I know this is a needle in a haystack, but any likely culprits?
        rgds
        Dolomede

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        • #5
          Just got these 2 invader 100's....white one works..yellow works but poorly....seem based on selmer circuits...even use same manufacturer for headshell




          Poorly one

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          • #6
            invader 60

            Originally posted by sgmypod View Post
            Just got these 2 invader 100's....white one works..yellow works but poorly....seem based on selmer circuits...even use same manufacturer for headshell




            Poorly one
            I bought one in London in 2000, it has Marshall knobs, but I'm still unable to get any information on the net

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            • #7
              Invader was an HH brand, normally used for their speakers, and later absorbed by Laney.
              And in the 70's England was full of Marshall copycats, so it probably is a Marshall clone, maybe with minimal tweaks or none at all.

              But do yor homework, at least post a couple pictures: overall, front and back panels, chassis insides, etc.
              Juan Manuel Fahey

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