Hi Doug, There was a long discussion that included RF fdbk on this group last December. Here is a pointer into the archives: http://lists.contesting.com/pipermail/amps/2005-December/thread.html This info may also be of interest to you: http://wc6w.50webs.com/wc6wamps/index.html?fr432.html 73 & Good afternoon, Marv WC6W -- "Ronald, Douglas S" 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 ________________________________________________________________________ Try Juno Platinum for Free! Then, only $9.95/month! Unlimited Internet Access with 1GB of Email Storage. Visit http://www.juno.com/value to sign up today!