Wanted: Small 220 variac

dgta · 10th February 2012, 07:09 PM

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.

firechief · 10th February 2012, 07:23 PM

How about a wire wound pot?

dgta · 10th February 2012, 07:34 PM

No, I don't need a pot

cyclecamper · 10th February 2012, 08:27 PM

Where are you located?

dgta · 10th February 2012, 08:54 PM

Michigan

firechief · 10th February 2012, 10:18 PM

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.

dgta · 10th February 2012, 11:00 PM

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.

firechief · 11th February 2012, 12:08 AM

Well OK - But a transformer provides isolation from say 220VAC mains voltage and a autotransformer does not. A variac is not a transformer.

cyclecamper · 11th February 2012, 12:15 AM

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.

firechief · 11th February 2012, 12:20 AM

Its true that I dont have a variac for sale. Here is a picture.

10th February 2012, 07:09 PM	#1
dgta diyAudio Member Join Date: May 2011	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.

10th February 2012, 07:23 PM	#2
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	How about a wire wound pot? __________________ "You can keep your insurance baby nothing is guaranteed" -Tom Petty

10th February 2012, 10:18 PM	#6
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	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. __________________ "You can keep your insurance baby nothing is guaranteed" -Tom Petty

11th February 2012, 12:08 AM	#8
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	Well OK - But a transformer provides isolation from say 220VAC mains voltage and a autotransformer does not. A variac is not a transformer. __________________ "You can keep your insurance baby nothing is guaranteed" -Tom Petty

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10th February 2012, 07:34 PM	#3
dgta diyAudio Member Join Date: May 2011	No, I don't need a pot

10th February 2012, 08:27 PM	#4
cyclecamper diyAudio Member Join Date: May 2010 Location: was Chicago IL, now Long Beach CA	Where are you located?

10th February 2012, 08:54 PM	#5
dgta diyAudio Member Join Date: May 2011	Michigan

10th February 2012, 11:00 PM	#7
dgta diyAudio Member Join Date: May 2011	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.

11th February 2012, 12:15 AM	#9
cyclecamper diyAudio Member Join Date: May 2010 Location: was Chicago IL, now Long Beach CA	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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