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CQ Magazine 1955: Improving the Class B Driver




 
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Author Topic: CQ Magazine 1955: Improving the Class B Driver  (Read 6961 times)
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Steve - K4HX
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« 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 273 times.)
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w8khk
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This ham got his ticket the old fashioned way.


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