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Mystery/dangerous ? material in an amp?

Discussion in 'Electronic Repair' started by N Cook, Feb 20, 2007.

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  1. N Cook

    N Cook Guest

    The owner requested replacement of a couple of pots and unusually requested
    the amp be blown out. Being unusual request I enquired what is likely to be
    in there requiring blowing out but he seemed a bit cagey.
    Inside there are perhaps tens of thousands of precisely 2mm long black
    fibres, about human hair thickness. I first thought chopped strand
    carbon-fibre but these are less tham 30 Megohm resistance , isn't carbon
    fibre conductive?
  2. Ron(UK)

    Ron(UK) Guest

    Could they actually be human hairs? is the owner a trendy short beard
    type or a skin head ;)?

    It could be shedded carpet covering off a new speaker cabinet, I`ve seen
    it come off bass cabs a bit like that.

  3. N Cook

    N Cook Guest

    Simple now you say it
    ,its the blue flock covering of the cab, in isolation the fibres look jet
    black, pulling some off with pliers and they're all 2 mm long.
  4. N Cook

    N Cook Guest

    greater than 30M that should have been , but as "carpet" fibres a bit
    irrelevant know
  5. Ron(UK)

    Ron(UK) Guest

    Some modern carpets do actually contain a percentage of conductive fibres.

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