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Description
"Electron Relays and Moorhead Tubes," Pacific Radio News, 1917. Advertisement for Moorhead Laboratories, San Francisco, by 1919 the world's largest electron tube manufacturer. Tubes and other components were made largely for "ham" (amateur) radio operators, thus the offer of "novel wiring diagrams supplied with tubes." (two copies, with negative)
Type
image
Identifier
CAF21CF9-E610-46C3-9C29-529558240990 2003-33-131
Subject
Moorhead Laboratories, Inc Tubes, Vacuum Radio--Equipment and supplies and supplies (LCSH) Radio--Equipment and supplies (LCSH)
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