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Vulcanan, a used in Philips reel-to-reel machines

Discussion in 'Electronic Repair' started by ajb, Aug 24, 2003.

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  1. ajb

    ajb Guest


    Can anyone suggest either a source of supply of, or a formula for, or
    a suitable substitute or replacement for the curiously characteristic
    Philips solution to the clutch problem - the material "Vulcanan"? It
    is used in at least two grades, 'hard' and 'soft', in the clutch
    mechanism of various Philips reel-to-reel tape machines of the early
    nineteen-sixties in particular.

    It is a waxy resinous substance, used as the gripping side of
    soft-start clutches. It deteriorates somewhat with age but is also
    violently attacked and destroyed by any traces of solvent, especially
    alcohol-based, that might be used elsewhere in the machine (or even
    nearby on the workbench) in the course of general cleaning and

    Work-arounds in the form of hand-made rubber fabrications of various
    materials are successful in keeping early machines 'on the road' but
    in the interests of authenticity I would like to re-create the
    original. When it works, it works very well and gives a very smooth
    control over tape transport.

    Thank you

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