[Amps] HF RF amplifier negative feedback

[Keith Dutson]

He has four one thousands and did not say how many ten thousands he has. :)

73, Keith NM5G

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at 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 at 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 at 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 at contesting.com
http://lists.contesting.com/mailman/listinfo/amps