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what is this device and what can i do with it and how much can i sell it for Answered

hello everyone i have a question for the collective minds of the instructables community i recently went to a garage sale and purchased the device you see below my questions are what is it and how much can i sell it for

thank you,
fidgety 2

Discussions

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gmoon
gmoon

8 years ago

Variacs are still highly valued by anyone who tests vintage or builds new vacuum tube equipment--amplifiers, radios, etc., or any vintage electronics.

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Goodhart
Goodhart

Reply 8 years ago

Yeah, I have been looking for one (within my budget) for YEARS now LOL

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Kiteman
Kiteman

8 years ago

Don't sell it, build a welder.

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fidgety2
fidgety2

Reply 8 years ago

I already have built a MOT spot welder how could this be used in a welder though you have me interested please explain

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fidgety2
fidgety2

Reply 8 years ago

P.s. I am taking welding courses at a local technical college and hope to major in welding so this information would be of great help to me

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steveastrouk
steveastrouk

Reply 8 years ago

NO ! And its a very important distinction. These are variacs (autotransformers). Welding controllers are variable taps on ISOLATING transformers

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Kiteman
Kiteman

Reply 8 years ago

Noted.

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steveastrouk
steveastrouk

Reply 8 years ago

....and also, tapped for low voltages for welding, the high current will destroy the windings.....

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fidgety2
fidgety2

Reply 8 years ago

Cool I now have a weekend project thank you

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Kiteman
Kiteman

Reply 8 years ago

Don't forget to take photos as you work!

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Goodhart
Goodhart

8 years ago

Depending on a few things: First it appears to be a variable transformer (Variac). Secondly, IF is works according to spec for this device, they are a bit on the expensive side, even to buy them in used condition, IF you can find someone that wants it :-)