Picked these up for FREE. Either useful on my bench?

[hesamadman]

Got two transformers. One is an adjustable up to 130v 10amp. With built in amp meter.  The other is 450 isolated/ 900 direct VAC. Not direct current. 7amp. Not sure what isolated or direct means. Anyway. Could either of these be useful on my bench?

[sluckey]

One is an adjustable up to 130v 10amp. With built in amp meter.

That's very useful. Sounds like what we call a variac. I'd need more info on the other one to determine if it's useful on the bench.