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Band Amp jig for protecting tubes/valves during repair

Discussion in 'Electronic Repair' started by N Cook, Apr 3, 2007.

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  1. N Cook

    N Cook Guest

    When working on a power amp outside of its case and of the normal
    form with mains transformer at one end and output matching
    transformer at the other.
    Assuming the valves don't extend too far.
    Aluminium sheet about 20 inches by 5 inches. Bend
    down the middle lengthways to a right angle and place between the
    transformers protecting the third corner.
    Hold in place with a pair of large cable ties or
    doubled/trebled up smaller ones, preferably with delatchable
    grips .
  2. Guest


    I have several sets of thingies I use. They're just a pair of 3/4" X
    10" X 10" boards nailed together at right angles (think over-sized
    bookends). They sit upright on the bench, making sort of a box shape
    with an open end facing you.

    Looking down from above:
    ________ ________
    | |
    | |
    | |
    | |

    (hope that comes out right; I could post pix...)

    Once they're the right distance apart, the amp fits on\in the top.
    Sometimes I get an amp with the trannies right at the edge of the
    chassis, but I usually rig up something to accomodate. It's quite
    stable and wicked simple. Since I like to work standing up, it puts
    the amp at a better height, and allows ample room underneath.

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