[Amps] 813 efficiency

[Hsu]

THis is a solution  http://www.cqham.ru/HiFi_Contester_EX8A.htm
   Hsu
-----原始邮件----- 
From: Mike Lord
Sent: Thursday, February 21, 2013 4:18 AM
To: amps at contesting.com
Subject: [Amps] 813 efficiency

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
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