jond: It was an SET that could use either 45 or 2A3 tubes. I have been fortunate to live near Vu's shop and have heard several of his amplifiers, but the only one that I have owned was a 45/2A3 SET.
One group of amplifiers that is not often mentioned is the SE, PE, and PP amplifiers made by Gary Dewes of Border Patrol. All use 300b tubes.
Finally, since Charles re-introduced solid state amplifiers into the discussion, I recently heard a Bakoon amplifier with my Def 4s. Definitely worth consideration.
One group of amplifiers that is not often mentioned is the SE, PE, and PP amplifiers made by Gary Dewes of Border Patrol. All use 300b tubes.
Finally, since Charles re-introduced solid state amplifiers into the discussion, I recently heard a Bakoon amplifier with my Def 4s. Definitely worth consideration.