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Test Instruments

FM-100 to FM-45 Band Converter  (1 page, 330 KB, .pdf)
Allows Pre-World War II FM Radios (FM-45) To Recieve a Portion of the Modern (FM-100) Band.
(From April 1947, Popular Mechanics - Also Mentioned In May 1947, Popular Science)

One-Tube FM Converter - Article & Sketches
    (4 pages, 910 KB,  .pdf)
Allows Pre-World War II FM Radios (FM-45) To Receive a Portion of the Modern (FM-100) Band.
From May 1946, Radio News.  When constructed per the attached sketches a 1941 Stromgberg Carlson 505-H
Received Stations from 88.5 MHz to 94.9 MHz.

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