Wednesday, 27 February 2008

MJM - London Fuzz Gutshots



Just a few images from a brief encounter with an MJM London Fuzz, Cap values 0.047uF and 0.47uF, for input and output. 10uF Bypass cap, the transistors I couldn't see without ripping them out of the epoxy, I left those be - just go for some standard gain match PNP Germs. Pots - Fuzz was 1K and Level was 500KA. The resistor values you can see in the images, just follow a fuzz face scheme and sub in those values - you've got yourself a London Fuzz (Which was far to bass heavy for me!).
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8 comments:

  1. Anonymous25 Aug 2008, 22:47:00

    Hello,

    1st question: Do the photos come from a clone of a London Fuzz or the London fuzz from MJM ?

    2nd question: which version is it ? London I or II ?

    Thank you
    karma

    ReplyDelete
  2. Anonymous11 Mar 2009, 17:10:00

    HI:

    Amazing job!
    can you send me the schematic of LONDON FUZZ please...

    My mail is:
    patronico@msn.com

    I very much appreciate that..
    Thanks

    Chris

    ReplyDelete
  3. Anonymous26 Feb 2010, 13:35:00

    Hello,
    Roots job!
    One thing : you talk about 0.047uF (input) and 0.47uF(output). Are you sure?
    Could you send me the complet schematic of MJM London Fuzz, please...
    (mail : genty_nic@hotmail.com)

    thanks a lot,
    FunkyHotFrog

    ReplyDelete
  4. monkeyxx19 Jun 2011, 03:27:00

    here, people, I did the legwork: http://i102.photobucket.com/albums/m112/monkeyxx/MJMlondonfuzzfuzzfaceSCHEMATIC.gif SCHEMATIC and http://i102.photobucket.com/albums/m112/monkeyxx/MJMLONDONFUZZGUTSpartvaluesidentifiedfuzzface.jpg THE PICTURE ABOVE but with VALUES IDENTIFIED

    ReplyDelete
  5. monkeyxx3 Jul 2011, 08:10:00

    sorry the in and output caps should be reversed on that schematic I posted. I think the proprietor of this blog was not quite specific enough about this in his sentence, but, if you look at the parts layout, it would make a lot of sense that the 8.2K and 470R resistors would be converging on the OUTPUT capacitor which appears to be the yellow one, which appears to have a hint of text reading .047. a blue electro is probably .47, and probably on the input side of the circuit

    ReplyDelete
  6. Anonymous16 Aug 2013, 09:00:00

    Can someone please provide hfe and leakage measurements for the transistors in the London fuzz?
    Thanks

    ReplyDelete
  7. Claudio16 Feb 2016, 15:00:00

    Hi. Can someone specify the complete values of the components, please? For instance, what's the voltage of the 0.47 uF capacitors?

    ReplyDelete
  8. Micheal Jackson19 Mar 2023, 22:48:00

    Box that didn't match
    design had me concerned because I had already purchased.

    ReplyDelete

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