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Original Message
RE: I've been scratching my head Mr. Jeffrey Behr
Posted by llwhtt on April 16, 2016 at 12:45:54:
The MA2s that I repaired years ago had paralleled tubes for the bottom part of the cascode diff. So it looks like the two side tubes are the lower part of the cascode, the middle tube is the upper part of the cascode, and the front tube is the cathode follower/driver tube.
Craig