No. The Shure SM57 isn't even a condenser mic. I know several on-line shops list it as such but it is definately a dynamic mic.
I have a really nice AKG C414 BULS condenser and it is not a tube mic.
For a low cost mic tho the SM57 is one of the best. I've got 6 of them in my locker. Always use it on snare. Sometimes on guitar. A few vocalists prefer it.