LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #17   Report Post  
Old February 6th 10, 02:41 PM posted to rec.radio.amateur.boatanchors
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 395
Default Class-C stage grid resistor

My practical experience is that lowering the grid resistor I always
get more
output power FOR THE SAME GRID CURRENT.

Same experience here.


So ... how do you know its the same ...if you use a meter ..
then the shape factor of the grid pulse will change the meter
reading .. wider pulse lower peak will still give the same
reading ?

need to check the waveform .. not easey .. simple way is to
forget the resistor and provide a variable bias psu . and inject
via a low ohm rf-choke ... and add some link to the bias voltage
and the pa plate supply ..no bias no supply .. simple relay ?


What is commonly called "grid current" is not the instantaneous grid current,
but its average value (i,e, its DC component). So, when one measures the grid
current using a DC meter, he has not to worry about the actual current waveform.

73

Tony I0JX

 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Class envy, class warfare, begins with Democrats creating it? Editor RadioTalkingPoints Shortwave 0 January 26th 10 11:04 AM
811A's, Dual Grid and Class B triodes [email protected] Homebrew 11 April 5th 07 12:41 AM
DSP in IF Stage? [email protected] Equipment 12 April 24th 04 04:58 AM
DSP in IF Stage? [email protected] Equipment 0 April 22nd 04 11:47 PM
Q-Multiplier at RF stage? GT25psi2002 Homebrew 0 July 23rd 03 11:52 PM


All times are GMT +1. The time now is 03:50 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017