On pages 202-205 of the 1956 "Radio Amateurs Handbook" (ARRL) there is
an amplifier described called "Parallel Tetrodes in a High Power
Amplifier" How do I, from that description and schematics etc.,
determine in what class the amplifier is operating? And what is a
National MB-40-L? I assume its no longer available but also assume that
it can be reproduced. This looks like just what I need for a linear to
go with my Viking Ranger to add some boost to the signal when needed.
AND still be contemporary period.
Jim W5JAI
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