Aside from a slightly screwey front end, I think it has potential. I would modify the OPTx winding just a bit to take advantage of my E-Linear circuit. It is just such a design I am working through right now. Let me get a bit of Audio funding together again, and I'll be making a pair straight away. It is shaping up quite nicely.
Now I have some UTC LS OPTx's and I can't figure out how to get the Iron out of them. It looks like I'll have to wreck the nice cast aluminium can pretty thoroughly to examine its construction. 8k a-a/20W is *PERFECT* for 300B's.
So many cool things to do, and sooooo little time.
regards,
Douglas