[Amps] Old Transmitter designs (was cathode driven/groundedgrid magic revealed.)

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Wed, 22 Jul 2009 22:04:59 -0500, "Gary Schafer" <garyschafer at comcast.net>
wrote:

>You disagree with Bill Orr?

REPLY:

If Bill Orr is recommending a resistor to "swamp out" load variations over the
RF cycle in a tube's input circuit, then yes, I disagree.

A resistor can not store energy during the high impedance part of the RF cycle
and then return it during the low impedance part. A parallel resonant LC circuit
can, given sufficient Q. The circuit can be either a pi-net or a simple LC
parallel resonant circuit. 

73, Bill W6WRT