Variacs and possible alternatives

[Findm-Keepm]

Originally Posted by danrulz98

I was just thinking about this last night, variacs seem to be really expensive.
Just thought I'd compile my thoughts, maybe helpful for someone.

So, where would be a good place to find a cheap one.

I found one on ebay that I might just get,

Well, why not just use a straight dimmer switch?
I guess the simple answer to this is it just isn't the same. It uses a variable resistor instead of an autotransformer. It also wouldn't be able to handle a lot of amperage.
But, I really don't know on that one.

The one you see on eBay is fairly lightweight, good enough for radios and most TVs, but I'd recommend a higher amperage (actually a higher VA rating) for everyday use.

PM me - I have a hefty powerstat (~10 Amps, IIRC) that's yours for shipping (USPS parcel or Priority Large F/rate) - it's still in the metal box someone mounted it in at NASA Langley years ago.

I use a 22 Ampere Powerstat I got from NASA, fused at 7.5A for power on testing, and I can change the fuses to fit my needed safety margin. Massive monster for sure!

Cheers,