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

@Ait- I'd say the 833C would certainly satisfy that need. Again: Nice job!

Ait, that is the finest tube amp build and project I have even seen....period. Absolutely astounding!

I'm talking about using 300B SET or PSET as output tube. If only its offered in 50W of power then we won't have any limitation when it comes to speaker choices. More variety for consumer better sales for manufacturer. Everybody happy.

Thanks Granny, WRM and Rodman...It took me a year of careful planning and building but I hope to enjoy them for the rest of my life.

I have been told by a designer that doing parallel single ended is not that easy to do and somewhat defeats the benefits of a simple single-ended circuit. It is hard to get twin output tubes to behave correctly in parallel and a very high demand is placed on exact matching of the tubes. A lot of SET purists also think that the operation of more than one output tube detracts from the purity of the sound of a good SET amp. I would also bet that there is more complexity and sources of sonic degradation from the additional demands on the driver tubes/circuit as well.

For something like 50 watts, one would be looking at four 300Bs in parallel--I know of only designs that work with two. There must be a good reason why one does not see four output tube parallel designs even for cost-is-no-object designs.