G+: +Patrick McLean Apparently there are have a few …

David Coles 11 Apr 2013

+Patrick McLean Apparently there are have a few of these in the Melbourne tram substations too.

Michael Poloni

The Mercury Arc Rectifier. Product of the 20th century. Apparently still running on Melbourne's tram network?! I want to see this!!

Mercury Arc Rectifier
http://en.wikipedia.org/wiki/Mercury-arc_valve

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