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Repair help with vintage H&H

Discussion in 'Amp Central Station' started by brenn, Jan 2, 2014.

  1. brenn

    brenn Tele-Afflicted

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    Does anybody know anything about solid state amps?

    I have a vintage H&H 100 watt combo, like Daniel Sash used with Bauhaus and Marc Bolan used, in a head version, I think, with T. Rex.

    [​IMG]

    It sat in my basement unplayed for a few years and now, when I turn it on, I get no guitar sound, just a loud hum, sort of like a feedback sound, but at a load steady volume, like holding a microphone steady in front of a PA speaker. This happens when I unplug the speakers from the head and plug it into other speakers, as well.

    Any ideas on what might cause that or I can do to fix it? I am fine with guitar wiring, but not really an amp guy.
     
  2. BobbyZ

    BobbyZ Doctor of Teleocity

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    That looks old enough to have bad electrolytic caps. Sitting around a few years without being played doesn't help those caps one bit. They dry up.
     
  3. Ringo

    Ringo Poster Extraordinaire

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    Cool looking amp, I've never heard of that brand before, 60s? 70s?
    Like Bobby mentioned it may just need some new caps, I'm sure a good amp tech could get it up and running for you.
    What did it sound like when it worked?
     
  4. brenn

    brenn Tele-Afflicted

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    With a Telecaster, it sounds about like this:
    http://www.youtube.com/watch?v=K0bLCILyVRk

    The fuzz and reverb are built in. You can see the silver-faced combo amp to the right of the drums, on the floor.

    Mine has a couple fo celestion 12" speakers.
     
  5. brenn

    brenn Tele-Afflicted

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    Thanks. I'll look into that when I get home. Can't hurt to replace them, just to see. Looks like they don't cost much.
     
  6. Dave_O

    Dave_O Friend of Leo's

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    Those HH amps could sound great in the right hands. Wilko Johnson used them (possibly the same model) during his time with Dr Feelgood.

    As for the cost of repair, I got the dead power section of a Peavey Bandit fixed with $14AUD of parts.
    Unfortunately, I am no electronics guru- so the labour cost me $240...
     
  7. Slowpoke

    Slowpoke Tele-Afflicted

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    A great amp, I had one many years ago and it had a beautiful clear clean sound for country music. A friend of mine used one to play pedal steel thru' and always had a great sound... But unfortunately I know nothing about the internal bits so I cant help you mate.. S
     
  8. macaroonie

    macaroonie Friend of Leo's

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    Here's a start

    http://www.hhamplification.co.uk/ampcom.asp

    and

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

    from the bottom of that page

    Schematics, footswitch data, fault finding hints, and more detailed dating info can be found in our SERVICE MANUALS which are available on CD rom or paper if you prefer.


    also

    I have created service manuals for 1970's HH Electronic, Laney, and other products, which are available in .pdf format. Also a huge inventory of schematic diagrams dating back to the early 1960's including rare VOX, Swissecho, Klemt, Farfisa, Meazzi, Sound City, Dan Armstrong, Linear, and other early English products.. I have recently introduced a service manual covering the Sound City amps from the early 1970's. Included are the Concord, LB 50, PA50, LB 100, LB 120, 120 Slave, LB200.

    Requests for single specific circuit diagrams, whether contained in the manuals or not, will be sent via email in .pdf format. The diagrams are free but there is an administration charge of £5 per request for this service, which must be prepaid by Visa, Mastercard or PayPal. Note we do not accept bank transfers for this service due to the charges. All service manuals are now £9.95 by email, or £10.95 (UK), £18 (overseas) on CD. We no longer offer manuals in book form - postage is ridiculous, especially overseas. See PAYMENT and POSTAGE page for full details. See spares list for list of manuals available.
     
    Last edited: Jan 4, 2014
  9. Tony474

    Tony474 Poster Extraordinaire Platinum Supporter

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    HH amps appeared in the early '70s and were initially pretty successful in the UK market and elsewhere too. I had a very early IC100 combo which served me extremely well for some years before I acquired a later version similar to the OP's example shown in the catalogue pic. The company, run by Mike Harrison and Malcolm Green, was very helpful in their days at Milton, Cambridge, and they customised that second amp for me at no charge one Saturday morning while I waited.

    Later the company relocated, ran into trouble through some unwise commercial decisions and was eventually bought out by the rival Carlsbro firm.

    For the OP: There's still a UK business, MAJ Electronic (http://www.majelectronic.co.uk/) who hold stock of some spares and may be able to provide specialist technical advice.

    BTW, I still have a 1970s' HH MA100 PA amp which worked fine last time I called it out of retirement... Same power stage, 5-channel mixer front end.
     
  10. rsi106

    rsi106 TDPRI Member

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    You may want to check over at the ssguitar forum. Somebody over there could probably help you out.

    HH amps were very popular in the UK in the 70s and 80s.
     
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