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Re: [Amps] 833A GG

To: Hsu <hsu4qro@gmail.com>, "amps@contesting.com" <amps@contesting.com>
Subject: Re: [Amps] 833A GG
From: "Fuqua, Bill L" <wlfuqu00@uky.edu>
Date: Mon, 26 Jan 2015 07:38:45 +0000
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Oddly enough, the 833A has a greater plate to cathode capacitance than plate to 
grid.
The grid does not offer much shielding between the plate and cathode. You would 
probably have
to neutralize it no matter how you use it, common grid or cathode.  It is the 
only triode tube that 
I know of that is like this.
  I thought it was odd and did not believe the specifications myself and 
measured the interelectrode
capacitance and my measurements agreed with the specifications. 
  Probably best to use it common cathode and plate neutralization.
73
Bill wa4lav
 
________________________________________
From: Amps [amps-bounces@contesting.com] on behalf of Hsu [hsu4qro@gmail.com]
Sent: Monday, January 26, 2015 1:13 AM
To: amps@contesting.com
Subject: [Amps] 833A  GG

Anyone have  experience  about 833 works on GG configurtion?Is it can work
10 mtrs?I just contact with the manufacturer, the factory new tube
graphite anode,only $50/ea, ,dirt cheap
    Hsu

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