Shop Stuff: August 2009 Archives

Case mod for a Variac

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I did this a while ago. I had a variac (a variable transformer that can convert 120V AC into 0-140V AC) sitting around and figured I should build a case for it. I wanted a rugged case, and one that was portable. So off to Princess Auto (a farm tool & stuff store with a cool surplus section) to buy an old military ammo case.

I cut holes in the case, and mounted the unit inside. Wired for 0-140V range, with a safety fuse, power switch, built in meter and power light.
For output I installed 3 banana / posts and a standard 120V single phase (North American style) outlet.
The analogue meter works.
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