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Old 10th February 2012, 07:09 PM   #1
dgta is offline dgta  United States
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Default Wanted: Small 220 variac

I need a small variac, any 220-240V input rating is fine. Smallest size possible, current/power rating not an issue. Doesn't need to be in a case of any kind, I will be putting it in a piece of test equipment.

US seller is best for cost/shipping reasons, I'm not looking to spend a lot for it. Thanks.
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Old 10th February 2012, 07:23 PM   #2
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How about a wire wound pot?
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Old 10th February 2012, 07:34 PM   #3
dgta is offline dgta  United States
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No, I don't need a pot
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Old 10th February 2012, 08:27 PM   #4
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Location: was Chicago IL, now Long Beach CA
Where are you located?
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Old 10th February 2012, 08:54 PM   #5
dgta is offline dgta  United States
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Michigan
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Old 10th February 2012, 10:18 PM   #6
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well dgta I was being kind of a wise a'poiwa -- You said that current/power rating not an issue and I always thought of a variac as a kind of heavy duity variable resistor. You should describe your application a little more and I'll bet the answers improve in kind.
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Old 10th February 2012, 11:00 PM   #7
dgta is offline dgta  United States
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No need to describe. I don't need a substitute or advice, I need a variac. You either have one for sale or you don't.

And no, a variac is NOT a heavy duty variable resistor. I think that's what's confusing you. It's nothing like a pot. It's an autotransformer. So it's a lot more like a transformer than a pot.
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Old 11th February 2012, 12:08 AM   #8
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Well OK - But a transformer provides isolation from say 220VAC mains voltage and a autotransformer does not. A variac is not a transformer.
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Old 11th February 2012, 12:15 AM   #9
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I can wire my Variacs as transformers or autotransformers, just by whether one primary wire and one secondary wire are connected or not. And yes, an autotransformer is a kind of transformer.

Too heavy to ship to Michigan, sorry. Probably bigger than you wanted anyway. And two are mounted on a 19" rack panel. And mine are really for 120v input.
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Old 11th February 2012, 12:20 AM   #10
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Its true that I dont have a variac for sale. Here is a picture.
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