This article is from the Antique Radios And Phonographs FAQ, by Hank van Cleef vancleef@netcom with numerous contributions by others.
This section of the FAQ addresses getting them to play as nicely as
they look. While not intended to be a comprehensive primer, this
section covers many questions that come up regularly. The topics
discussed in this section of the FAQ presume that you have a working
knowledge of vacuum tube circuits.
 
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