First of all, let us know what the hellza BV .... oh Crate Blue Voodoo, now some folks might know about those.
No power getting anywhere? Check line fuse. Check power switch. Check AC cable. We hope the power transformer hasn't failed. That's a possibility but DO check the easy cheap-to-fix things first. Wouldn't it be nice if you found a solution there, sure would relieve a lot of panic.
Further in, you'll notice the Blue Voodoo has an unusual feature, the circuit board holding output tube sockets is attached to the rest of the world thru multipin connectors at each end. These are a source of problems, not to say your BV has 'em. Heat and corrosion do their dirty work here, and in some cases I've found output tubes getting no filament power because the multipin connectors handling filament current are roasted. In those cases I've run separate wires from the tube sockets to appropriate connections on the main circuit board.
In spite of their hassles, Blue Voodoos are good sounding amps when they're running right.