Mercury arc rectifier

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Nice, and I would think fairly scarce these days.  Massive poly-phase ones used to be used to power tramways but they are probably all scrapped by now.  

I'm not sure about DC to AC conversion though; never heard of it, (in connection with MARs), before and I can't immediately think how it would work.

 
I haven't worked out how it works, but it does.

I can post a picture of the diagram, if I can work out how to post it here,......

 
Hi Toni,

I will copy the manual and send it to you via email. Please give me some time, I'm in France right now.

Also, the manual is in German.

Cheers,

Hubert

 
I’ve just had a closer look at the video clip. It looks like the control grids are in the “elbow” of the anode (cathode in inverse mode) arms. Changing polarity accounts for the big clunky switch.

 
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Well I've decommissioned a couple of these in the past. Never seen one that could produce AC. 

Wont matter if the manual is in German, I can translate it. 

 
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