CQ Magazine 1955: Improving the Class B Driver

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Steve - K4HX:

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

w8khk:

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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