Copyright © 1949 Poptronix, Inc.; used by permission.
(The copyright was not renewed and this issue is in the public domain.)
Radio-Craft magazine was started in 1929 and the name was changed to Radio-Electronics in 1948.
Copyright © 1949 Poptronix, Inc.; used by permission.
(The copyright was not renewed and this issue is in the public domain.)
Radio-Craft magazine was started in 1929 and the name was changed to
Radio-Electronics in 1948.
The Radio Hat (page 32) HTML version of the article
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