Amps
[Top] [All Lists]

Re: [Amps] HF RF amplifier negative feedback

To: Amps <amps@contesting.com>
Subject: Re: [Amps] HF RF amplifier negative feedback
From: Joe Isabella <n3ji@yahoo.com>
Date: Thu, 27 Apr 2006 11:54:51 -0700 (PDT)
List-post: <mailto:amps@contesting.com>
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
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps


                
---------------------------------
Blab-away for as little as 1¢/min. Make  PC-to-Phone Calls using Yahoo! 
Messenger with Voice.
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps

<Prev in Thread] Current Thread [Next in Thread>