I have transformers in my inventory for a 45 amp, as well as a 2A3 push pull.
I look forward to getting them built and comparing them.
As stated above, I would be looking into a PP 2A3. Very curious about how tyt would sound.
I use a DIY SE EL84 with my Cornwalls and it drives them with comparative ease. Now, I don’t play particularly loud, and I’m not a bass head, so others may not find that satisfying.
Do really like EL84’s, I do :) Listening to a pair of UA-1’s now, and even in their poor state (just got them) they sound quite lovely.