He has four one thousands and did not say how many ten thousands he has. :)
73, Keith NM5G
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Joe Isabella
Sent: Thursday, April 27, 2006 1:55 PM
To: Amps
Subject: Re: [Amps] HF RF amplifier negative feedback
Wow!! A four tube 4CX10,000D amp... Can't wait to see it!!
:-)
"Ronald, Douglas S" <douglas.s.ronald@lmco.com> wrote:
Amps fans,
I have only subscribed to this reflector for a few months, however I have
never seen any discussion on negative feedback in linears to reduce
distortion. I plan on feeding a few pf's from the 4CX10000D plate back to
the driver cathodes in a capacative voltage divider configuration.
(why a 4CX1000D?, because I have 4 of them with sockets) This topology
should be frequency independent. I'm planning on a neutralized class A
amplifier, and from10 to 20 dB of feedback. I wonder if anyone has
successfully done this, and why it isn't done more frequently? There must be
a can-of-worms here I'm not aware of...
Thanks all,
Doug Ronald
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