[Amps] 813 efficiency

[ZL2AAA]

>From memory a GE Ham paper had this info and I think the answer was to tap 
the tuning cap along the 10m tank coil.Morrie


----- Original Message ----- 
From: "Mike Lord" <k4elv at bellsouth.net>
To: <amps at contesting.com>
Sent: Thursday, February 21, 2013 9:18 AM
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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