[AMRadio] info wanted on 4-400 linear amplifier

James M. Walker chejmw at acsu.buffalo.edu
Wed Aug 3 23:37:21 EDT 2005

that is the one, ran AM CW and RTTY with it for over five years after
it was finished. The tube lasted quite well and I still have it here
as a test tube for the T-368s I end up working on.

The circuit lends itself to using the 4-250 as well the neutralizing
need to be adjusted however. Great rig.
P.S. I still have the control deck somewhere in all this stuff! :-)

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