Power Supplies..any other value perhaps, other than scrap?

Like the title says, do the below power supplies have any other value besides scrap?

Seen them on craigslist and waiting to hear back if they are mine. In case they are, just want to know if they are only scrap value, or perhaps more.

http://i1083.photobucket.com/albums/...isc/power6.jpg

http://i1083.photobucket.com/albums/...isc/power5.jpg

http://i1083.photobucket.com/albums/...isc/power4.jpg

http://i1083.photobucket.com/albums/...isc/power3.jpg

http://i1083.photobucket.com/albums/...isc/power2.jpg

http://i1083.photobucket.com/albums/...isc/power1.jpg

Transformers and the fer-rite rings with copper. That's if they have some weight to them.

I notice their different voltages, some are 5v and some are 12v. They are regulated so they could be used for cb or ham radio use, (the 12 volters) it's an easy way to use a mobile radio as a base station. Don't know about a use for the 5 volters. The 12ers they also use them for running tatoo equipment, they can turn the voltage up and down and that turns the speed up and down.

Like Mechanic688 said, they are variable voltage DC power supplies. If I remember correctly, Lamda manufactured equipment for Labs/Research industry. Home electronic buffs use these to supply power to test circuits when they are breadboarding (design stage) new circuits. But now they mostly use computer power supplies due to the numerous and varied voltage. Power supplies a pretty basic equipment, and marketable but you would have to scope them to make sure they produce a constant sine wave. Probably had good amount of copper in those.