Is there any 50W 300B SET monoblock out there?

Lovely. I'm no designer but that layout looks remarkably clean to me. Very impressive. How much does the beast weigh?

OP, I agree with comment from noromance. If you need power and love SET sound, you owe it to yourself to check out the Dehaviland line. For many tears they've been focused on SET triode amps that are compatible with a wider variety of speakers. A rare treat! Cheers,
Spencer

Wrm, about 180lbs per side. The output transformers weigh 62lbs each.

Here's a pic of the OPTs before potting, with an ECC83 tube for reference:

OPT Core

Rodman, I was pretty much answering this statement by Brf:

"What you need is a tube manufacture to manufacture a more powerful triode tube."

Just letting ya know it exists already...

Cary Audio has made the 805 amplifier for more than 20 years- rated at 50W, its a 300B driving a 211 Triode

CAD 805

Good Listening

Peter