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The Cambridge P50 ...

Discussion in 'Electronic Repair' started by Arfa Daily, Aug 16, 2005.

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  1. Arfa Daily

    Arfa Daily Guest

    Hi all

    In case anyone's interested, I managed to get a copy of the schematics for
    the Cambridge P50 vintage amp that I posted about here a couple of weeks
    ago, and have gotten to the bottom of the problem. C12, the coupling cap
    between the third and fourth preamp stages, had dried out on both channels,
    and was almost open circuit. Apparently, the owner now tells me, it's been
    sitting in his roofspace for the last 10 years or more, so I guess that it's
    been alternately cooked and frozen each year, which sure as hell isn't gonna
    have done those electrolytics much good ...

  2. duranduran

    duranduran Guest

    Hi Geoff
    I recently acquired the same amp, but with a different problem. I'
    trying to bring it back to life, but it's a long job! If you could sen
    me a copy of the schematics, I really would appreciate it


  3. Arfa Daily

    Arfa Daily Guest


    Mail me direct if you like

  4. Arfa Daily

    Arfa Daily Guest

    Hi Dave

    Sorry for not coming back to you sooner. It's been so busy here the last
    couple of weeks that I've not had much chance to visit the newsgroups and
    keep up to date, so missed your post.

    Do you still need the schematics ? I got them on disc from a service info
    retailer. It's a scan of an original paper copy in 6 or 8 parts. It's not
    quite A1 in quality, but quite useable printed out and stitched together
    with Sellotape.

    What problem have you got with it ?

    Regards Geoff
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