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?
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on
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