White Cathode Follower
Earlier, we said the that the Cathode Follower is the work horse of tube circuits, well then this must be the Clydesdale. This buffer circuit offers a truly low output impedance, an almost unity gain output, and a near symmetrical push-pull current swing. How? Feedback from the plate of the top tube is the answer.

<a href=http://home.comcast.net/~gkfbiz/images/ReportWhiteCathodeFollower1a.pdf target=_blank>http://home.comcast.net/~gkfbiz/images/ReportWhiteCathodeFollower1a.pdf </a>

<a href=http://www.tubecad.com/october99/page4.html target=_blank>http://www.tubecad.com/october99/page4.html </a>

<a href=http://headwize.com/projects/showfile.php?file=cmoy5_prj.htm target=_blank>http://headwize.com/projects/showfile.php?file=cmoy5_prj.htm </a>