Has anyone come across a solid state amp that can come close to the big, warm, drippy sounds of a good surf rig?

Hello!

New to the forum and, of course, I have a question. Recently  acquired the above mentioned amp and I do love it! But, I recently gigged with it and, wouldn't you know it, it died right in the middle of the set! Has power and a fairly substantial hum. And that's about it. Nothing comes through!

Power transistor perhaps?

Any help would be greatly appreciated.

Mutt