[rca2000]

It is called "colorvolot", by Sola.

It was sold in the early 1970's--to regulate the line voltage to color tv sets--and make them more stable. It is a Voltage Regulating Transformer--just like the one used in the Zenith flat chassis and chromacolor II sets, along with many mid-1970's color sets of all makes.

It does have a novel feature--it seems to stay "off line-, passing current through it, until an apprecible load is sensed--then the VRT comes into play. It is rated for 3.1 amps--meaning it would work for most vintage color sets--other than some really early ones like the CT-100 and such. Or...maybe even a computer system today. Few of them would draw over 3A.

I SHOULD note--that I do NOT think this is isolated--so it would NOT be ok to use for that purpose...

Got it--just for curiosity..