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CAT # SC-3M (4 Reviews) Write a Review

$64.00 each
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Product Description
Input: 110 vac. Output: 0 - 130 vac. Fully enclosed variable transformers in ventilated steel cases with 6' power cord, 3 prong grounded receptacle, output voltage meter, on/off switch, fuse and power cord. Portable or mountable. Useful in a variety of applications where adjustment of AC line voltage is desireable. 5.35" X 4" X 5.5" high. Weight: 6.5 lbs.
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
(This item was manufactured prior to August 31st, 2018)

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Customer Reviews (4 Reviews)

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Just the ticket.

Reviewer: from New York City, USA

I also bought this device to repair old radios - and to keep the voltage across my isolation transformer fairly constant.

It does the job and does it well. Jus don't depend on the dial calibration for a voltage reading since the knob is sometimes off by a notch or two.

Use your volt-meter to confirm exact voltage.

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Great cheap variac

Reviewer: from MN USA

i got this to connect to a rectifier to have an adjustible source of dc. the only problem with this is my dial is about 5v off from what the meter says. overall it is a great product

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works great, check the meter

Reviewer: from MONTESANO, WA USA

Very useful when servicing old radios. Mine puts out about 10 volts more than the meter reading; but as long as you know that, it's consistent. Solid and well-built.

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Decent variac

Reviewer: from Warren (Detroit) Michigan, USA

I bought one and it does work well, excatly as described and pictured. These are brand new in indivual boxes with foam packaging. The transformer wire is a little coarse so the change is actually in a series of small steps. I bought it for repair of old radios and it is excellent for that task.

Made in China

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