Warning: Creating default object from empty value in /homepages/11/d132647312/htdocs/Amfone/mkportal/include/SMF/smf_out.php on line 47
CQ Magazine 1955: Improving the Class B Driver




 
The AM Forum
October 02, 2023, 09:47:04 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: CQ Magazine 1955: Improving the Class B Driver  (Read 37788 times)
0 Members and 1 Guest are viewing this topic.
Steve - K4HX
Administrator
Member

Offline Offline

Posts: 2722



« on: March 26, 2021, 11:09:51 AM »

See attached article for a cathode follower driver for 810 triodes.


* Improving_the_Class_B_Driver.pdf (3551.25 KB - downloaded 541 times.)
Logged
w8khk
Member

Offline Offline

Posts: 1194


This ham got his ticket the old fashioned way.


WWW
« Reply #1 on: March 26, 2021, 01:32:05 PM »

Steve, that is an excellent reference.  I used a similar technique for driving a quad of 1625s in AB2, but used RC coupled audio amplifiers and a phase inverter instead of the driver transformer.  The results are stellar!  Thank you for your post!

Link to my project which shows a very similar technique with the 6SN7 cathode follower:
http://amfone.net/Amforum/index.php?topic=46696.0

Feel free to move my thread to the Audio category if appropriate.
Logged

Rick / W8KHK  ex WB2HKX, WB4GNR
"Both politicians and diapers need to be changed often and for the same reason.   Ronald Reagan

My smart?phone voicetext screws up homophones, but they are crystal clear from my 75 meter plate-modulated AM transmitter
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.048 seconds with 18 queries.