The RCA Selectron -- RCA Lancaster
RCA Radio Age, July 1946
RCA Buys Lancaster Tube Plant,1946, pp. 25, 26
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Copyright 1946 Radio Corporation of America
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Copy courtesy of www.americanradiohistory.com
RCA Radio Age, July 1948
Tube Plant Enlarged,1948, pp. 23, 28
PDF 935 kB
Copyright 1948 Radio Corporation of America
All Rights Reserved
Copy courtesy of www.americanradiohistory.com