Any one have any idea what this is or used for?

Someone gave this to me and I'm trying to figure what it is. Each side has an amp gauge. On the front plate says number of batteries and 12 holes that you can pull the metal plug and change them around. . Then on the bottem of front panel has low,med,high. Has a couple of tubes and fuses inside. came from an eastate sale were the guy used to service car's back in the day.  Sorry the pics are not any clearer. If need be I'll try to take some better one's.

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Ripped this off Google. Seemed like it might be on track.

Tungar Power Supplies and Chargers use a very interesting vacuum tube called the Tungar Bulb or Tungar Rectifier. Invented in 1914 by General Electric by G. S. Meikle. In some respects it looks like a light bulb with a plate over the filament. When you turn on a Tungar Charger, the bulb does light up like a bulb. Tungar is an acronym for Tungsten Argon (Tungsten filament filled with Argon gas). The Tungar Bulb has the ability to handle large amount of current and was relatively immune to shorted battery cells which makes it the ideal battery charger. Tungar chargers were used to charge radio storage A batteries and car batteries. The Tungar Bulbs were used in many high current applications until the late 1940's, when selenium rectifiers became practical. Today battery chargers use silicon rectifiers with short circuit protection and voltage regulation circuit that in many ways work like Tungar Chargers, but a lot smaller, lighter weight and more efficient.

That awesome! It's gonna be garage art now along with 5 metal oil cans different maker all full of oil. Thanks for the info.  

Here is a pic of the inside. The charger is laying on it's side." />

Garage art is always cool!

That is cool! Will make a great peace of wall art.

I bet you could clean it up and check the connections and it would work.

Man, that thing looks like some sort of torture device. I see how Don Shumacher made all his dough with battery chargers and can afford all the Funny Cars and Top Fuelers.

This thing weighs every bit of 60 pounds!