Yes I just downloaded the 833A's datasheet, Yes the plate to filament
capacitance is 8.5P!
too much!Yes, I see, It is a challenge to use it built an amplifier.
Thanks Bill!
Hsu
-----原始邮件-----
From: Fuqua, Bill L
Sent: Monday, January 26, 2015 3:38 PM
To: Hsu ; amps@contesting.com
Subject: RE: [Amps] 833A GG
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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