I find the drive is more like 60 watts before the plate current exceeds
500 milliamps. So the power out in this example should be 510 watts.
In any event, it's hard to imagine how you are supposed to get 600 watts.
I never could.
Carl Moreschi N4PY
----- Original Message -----
From: "Dr. Gerald N. Johnson, electrical engineer" <firstname.lastname@example.org>
To: "Carl Moreschi" <email@example.com>
Sent: Friday, February 22, 2002 3:07 AM
Subject: Re: [TenTec] Centaur
> Your simple math ignores the feed trough power inherent in the grounded
> grid linear. Most of the 100 watts of cathode drive shows up in the
> output raising the apparent efficiency. So your numbers should be
> modified to indicate nearly 550 watts RF output when driven to 750 watts
> DC plate input.
> 73, Jerry, K0CQ
> Entire content copyright Dr. Gerald N. Johnson. Reproduction by
> permission only.