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Hughes & Kettner schematic needed

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  • Hughes & Kettner schematic needed

    Does anyone please have a schematic for a Hughes & Kettner ATS MkII?

    I’ve found one for the ATS 120 which is a close relative but has many differences (e.g. the MkII has two pairs of J49/K134 MOSFETS on PA board but 120 just has one pair, Mk II has more fuses on PA board).

    Usually easy to find H&K documentation but this one is elusive!

    Thanks in advance.
    Attached Files

  • #2
    ATS-60?
    ATS Mk2 ... which model?

    It's only an amplifier ... what is wrong with it?
    Last edited by Jon Snell; 05-25-2024, 07:37 AM. Reason: More info added
    Support for Fender, Laney, Marshall, Mesa, VOX and many more. https://jonsnell.co.uk
    If you can't fix it, I probably can.

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    • #3
      The only model reference is that ATS MkII on the front panel Jon. Nothing at all on rear or on any of the boards inside (at least not on topside - haven’t pulled any boards yet). It’s more similar to a 120 than a 60 as has pair of ECC83s in overdrive channel. Unlike the 60 and 120 it has a set of five slider pots for the ‘tube’ channel but uses rotary eq pots for clean channel.
      Last edited by Stratfordade; 05-25-2024, 07:49 AM.

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