[Amps] 'good engineering'

Bill, W6WRT dezrat1242 at yahoo.com
Sat Mar 27 19:49:30 PDT 2010


ORIGINAL MESSAGE:

On Sat, 27 Mar 2010 21:35:13 -0400, "Gary Schafer"
<garyschafer at comcast.net> wrote:

>Jim,
>I think that Bill needs to do a lot of reading. Orr's book is an excellent
>start.
>
>In his chapter on amplifiers he specifically spells out what happens to the
>cathode current of a GG amp when no tuned input circuit is employed. He
>describes how the cathode current follows the coax cable out to the exciter
>and back. If Orr is not believable have a look at some of the Collins
>material.
>
>As to RF passing thru the chassis, again turning to Orr will explain it in
>detail of how RF does not pass thru the chassis metal but thru holes in the
>chassis

REPLY:

So THAT is where all this voodoo comes from! 

I wonder what Orr would have thought of the disk experiment we just
did. Twice.

You are right though, I will have to get one of his books. Like I
said, several people have quoted him saying a GG amp is a phase
inverting amp. I don't doubt the quoters but I would like to read that
myself. 

I'll be back.  :-)

73, Bill W6WRT


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