Mercury arc rectifier converting AC to DC - GIF

[Altair]

Mercury arc rectifier converting AC to DC.




Previously:

Mercury-arc rectifier - photo
Bending a beam of electrons with electromagnets - GIF
Elemental gases in front of a Tesla coil - GIF

[NeiljohnUK]

Aw a nice little one, in the underfloor area below what was the projection room of an old cinema I was working in we found a good dozen of the big ones for the long gone carbon arc projectors, all cracked, but still full of mercury. I priced the mercury up, and it ran to tens of thousands, even dirty, but the only legal disposal route we had could only take a pound at a time per month. The rectifiers are probably still there 35 years on...