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HH Studio 60 mosfet and general amp schematics

Discussion in 'Amps and Cabs [BG]' started by jackflannery3, Apr 15, 2012.

  1. Apr 15, 2012 #1
    jackflannery3

    jackflannery3

    Apr 13, 2012
    Ireland
    Hi I was wondering if anyone had any schematics for a 1980's HH studio 60 mosfet bass amp. I can't find a good site.

    I found one in a skip and it seems to be working quite well but I wouldn't trust it for a gig in case there's something I'm missing.

    Also the mesh has been torn and I was looking for a cheep replacement.

    P.S. I'm not too sure of it's value if anyone has any idea.
    Thanks, Jack
    please any help would be greatly appreciated.:help:
     
  2. Apr 16, 2012 #2
    BassmanPaul

    BassmanPaul Inactive

    Aug 25, 2007
    Scarborough Ontario Canada
    I think you stand a better chance of finding H&H schematics on your side of the pond. I have the schematic for the IC100 and that's it.
     
  3. May 29, 2012 #3
    cloudburst

    cloudburst

    May 27, 2012
    Northern Ireland
    I had one of these amps back in the day and loved it. I have another one now! My advice would be to contact MAJ Electronic in the UK.

    http://www.majelectronic.co.uk/

    CB
     
  4. Sep 21, 2017 #4
    jackflannery3

    jackflannery3

    Apr 13, 2012
    Ireland
    I realize it's been a few years but my workhorse has finally started to show signs of giving up.
    I keep it at a low volume and just use it to practice in the house but recently it has started cutting out,
    It plays fine for a while then it starts to sputtering out.
    A good thump usually sorts it out temporary but I would prefer a more permanent solution.
    If anyone has had the same problem or knows these amps well please let me know
     
  5. Sep 21, 2017 #5
    beans-on-toast

    beans-on-toast

    Aug 7, 2008
    As recommended, ask MAJ Electronic about obtaining the service manual. They are in the process of closing down.
     
  6. Sep 21, 2017 #6
    agedhorse

    agedhorse Supporting Member Commercial User

    Feb 12, 2006
    Davis, CA (USA)
    Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
    Find an experienced service tech.
     
  7. Sep 21, 2017 #7
    BassmanPaul

    BassmanPaul Inactive

    Aug 25, 2007
    Scarborough Ontario Canada
    You could try the old saw of linking the send and return of the effects loop if it has one.
     
  8. Dec 4, 2017 #8
    jackflannery3

    jackflannery3

    Apr 13, 2012
    Ireland
    Never heard of that one, I'll give it a go