The 6LF6 used in my Futterman H3aa's is capable of decent current delivery. This is a TV tube designed for use as a horizontal deflection amplifier in b&w TV's.
OTL amps, my pick for the tube used.
This is my OTL tube pick for an OTL the 6C33C tube.
I don't believe much can compete with it for current, and that the big achilles heel of OTL's
https://www.navisonaudio.com/uploads/images/thumb_medium/otl-150-1.jpg
https://www.navisonaudio.com/uploads/images/thumb_medium/otl-150-3.jpg
Just had to show this, in it's glowing glory.
Cheers George
I don't believe much can compete with it for current, and that the big achilles heel of OTL's
https://www.navisonaudio.com/uploads/images/thumb_medium/otl-150-1.jpg
https://www.navisonaudio.com/uploads/images/thumb_medium/otl-150-3.jpg
Just had to show this, in it's glowing glory.
Cheers George