[Amps] 813 efficiency

[Mike Lord]

Some time ago (maybe 2 years) there were comments filed on this site regarding increasing the efficiency of the 813 tube on 21 - 28 mhz.  I've looked through my history of this group but failed to find a reference.  I also checked some GE Ham News articles that I've saved.  I realize the tube wasn't designed for this spectrum.  However, I do seem to recall some references being made on this site based upon personal experiences.  I really don't intend to waste the groups time, but I sure would appreciate any circuit suggestions that would lead to increased efficiency of this tube.

73, Mike K4ELV