View Single Post
  #84   Report Post  
Old February 28th 05, 02:23 PM
Cecil Moore
 
Posts: n/a
Default

Richard Clark wrote:
To forestall any armchair engineers, yes, this efficiency is System
efficiency...


.... which is not the definition of "plate (anode) efficiency"
from the IEEE Dictionary: "The ratio of load circuit power
(alternating current) to the *plate* power input (direct current)."
For amplifier efficiency calculations, only the DC power input
to the plate-collector-drain is considered, by definition. The
power dissipated in the surrounding support circuitry is not
included in the definition of "plate efficiency".

Reference: _Electronic_Fundamentals_and_Applications_ by
John D. Ryder, Copyright 1954, by Prentice-Hall, page 348,
Section 10-6. Plate-Circuit Efficiency
--
73, Cecil http://www.qsl.net/w5dxp


----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups
---= East/West-Coast Server Farms - Total Privacy via Encryption =---