[Jewelry making - Article 00840] - [Orchid] Stripping varnished copper wire.

[John Burgess]

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    G'day;  Now this is going to make all you safety concious folk
    positively shudder.   When we needed to bare varnish-insulated copper
    wire to make lead/tin soldered connections, we used to have on a hot
    plate, a small porcelain basin (known in labs as a evaporating basin)
     containing about 6 cms or so of concentrated sulphuric acid.  We
    dipped the end of the wires into the hot acid, hold it for about 5
    seconds then into a bath of washing soda, dry on an old cloth.  Never
    any difficulty in getting the solder to 'take'! And nobody ever got
    hurt.   Only the good die young.  (Why I'm 82) 

-- 
Cheers for now,
John Burgess;   johnb AT ts.co.nz of Mapua, Nelson NZ


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