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Your cart is empty.Product Description
Specification
Built-in Copper Coil
- Built-in copper coil, material quality, more secure and durable.High efficiency and with no waveform distortion.
Safe Protection
- Red tough Iron shell.
- For realizing the aims of voltage regulation, temperature control, light regulation and power control, etc.
Wide Application
- Suit for home coffee roasting,Motor Speed control,Label Printing Machine,EE Labs,Test for Railroad Switching,Power Supplies,Satellite, Equipment,Telecommunication Equipment.
Derek Wilkinson
Reviewed in the United States on April 23, 2024
This Variac does what Variacs do very well. I ended up returning it because it only provides 3 amps, and just a few of my applications require more. HOWEVER, it's important to note that the size and weight of a Variac increases significantly when increasing amperage—mostly the weight. I paid just $20 extra and got a 20 amp Variac, and I'm still considering whether or not this was the right decision. I normally work on and build guitar amplifiers and effects, and felt like 3 amps should be plenty. Others have recommended 10 amps for this, but tube amps are low current, high voltage devices; I'll let you do your own research. But for me, I occasionally need more current for using power tools, and this is where the larger model came in handy.As far as the ease of use, the only complaint I had is that I ended up using a label maker to put a black and white arrow on the dial, as it's hard to read what voltage it's set on from a distance. What would really be useful would be some kind of low-fi light up display that shows the voltage—maybe stacked LEDs. I should probably build one as an ancillary attachment.In short, I love this thing, and it's hard to go wrong for the price tag. Variacs maintain their value over time as well, and even a used Variac will likely appreciate with age.
Richard L. Chism
Reviewed in the United States on August 23, 2023
I work on vintage HAM radio receivers with vacuum tubes. Often these will have been sitting around for decades in a garage. Capacitors can leak over time and resistors can change value. This allows me to bring up the line voltage slowly so I can assess the condition of the radio without causing further damage. I took off a star for accuracy but it is more than sufficiently accurate for my purposes. I've had it for 8 months with no problems.
Russell
Reviewed in the United States on May 20, 2023
Description was kinda vague and was impulse buy for I needed a isolation transformer not a variac..had to return, did not use so I cant rate accuratly
Ned Ryerson
Reviewed in the United States on July 11, 2022
Contact transformers like this are generally more expensive to build, and more reliable. For the first few minutes of using it, I can tell that this item is a solid product. The control knob is not entirely smooth, and feels cheap. But this does not affect functionality of the product. And yes, I could lift the heavy unit by the control knob (not so smart on my end, and highly NOT recommended). All in all, this looks like a product that you can depend on. It looks like that it will last forever. But I'll update if anything changes.BTW, the voltage output is quite accurate according to the dial.
TM
Reviewed in the United States on February 11, 2022
Some reviews mentioned assembly problems with this. I took it apart before I tried it. I did find the ground insulated with paint but no other issues. I was surprised by the high quality of construction at this price point. I reassembled the unit and tested it. As other reviews mentioned the on board meter and the dial do not agree with each other or actual output. However the transformer does smoothly and progressively alter the voltage over an even greater range than indicated. The voltage changes little between open circuit and loaded. It does what it is supposed to do for a very reasonable sum. Just clean the ground and use a meter it works well.
Robert W. Miller
Reviewed in the United States on December 20, 2022
Pretty good product for the money. The dial scale is slightly off when measured with a DVOM, but the regulator serves it’s purpose overall.
Megan Flanagan
Reviewed in the United States on October 3, 2020
Pros:Works exactly as you'd expectVersatile in its input/output range for any non-industrial useLightweight & portableSpare fuses includedCons:Output is not 100% accurate, but still very close. Totally expected with a physical turn dial, you should be double checking with a multimeter anyway.
Customer
Reviewed in the United States on October 11, 2020
I got this to vary the input voltage to a small tesla coil that I have, and it works great. Its fused at 3 amps, has an output voltage meter, and isn't too heavy.These things are good for a wide variety of uses.
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