Variable power supply for tube amps

[morelius]

Hi

i understand what is a variac but i didn't find one that it works 0 to 450 V. I only find the normal variac 0-230v in europe.

Exist variacs 0 to 450v?

 

[jazbo8]

They are usually only 0-230V, you still need to buy an industrial transformer (230V to 480V) to step up the voltage.

 

[morelius]

They are usually only 0-230V, you still need to buy an industrial transformer (230V to 480V) to step up the voltage.

ok i search a industrial transformer 😉

Thanks jazbo8