 Photographs © copyright Pablo Zuñiga
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Chile
Proyectores Campamento Minero Sewell
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These are Ashcraft C70 carbon arcs
They burn a 6mm neg x 7mm postive
or 7mm neg x 8mm positive
or a 8mm neg x and 9mm positive
at between 40 and 85 amp depending on the trim
Thanks to Gordon McLeod for the above information
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