Virtually all US and British cars were "positive-earth" until the 1950's.
US car makers changed over first, then the British. The last
positive-earth cars were probably marketed in the US in '66 or '67.
Lucas made a full range of positive-earth equipment including a
positive-earth version of the 10AC alternator.
I believe a negative-earth system is slightly more efficient though I
believe it is slightly more prone to the loss of ground through corrosion.
Marc
msmall@roanoke.infi.net FAX: +540/343-7315
Cha robh bas fir gun ghras fir!
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