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Belmont Model 5240 Schematic & Parts List
July 1948 Radio News Article

July 1948 Radio News

July 1948 Radio & Television News Cover - RF Cafe[Table of Contents]

Wax nostalgic about and learn from the history of early electronics. See articles from Radio & Television News, published 1919-1959. All copyrights hereby acknowledged.

Belmont Radio Corporation was located in Chicago, Illinois. Founded independently sometime the 1920s, it became a subsidiary of Raytheon Manufacturing after World War II in an effort to quickly launch Raytheon into the nascent consumer FM radio and television markets. Belmont advertisements were prominent in electronics trade magazines throughout 1940 to promote their war efforts. A schematic and parts list for this Belmont Model 5240 vacuum tube radio appeared in the July 1948 edition of Radio News magazine. I could not find an example of the radio anywhere. Based on the schematic, my guess is it was a tabletop model. Please let me know if you know where there is a photo of one.

Schematics & Parts List

Belmont Model 5240 Schematic, July 1948 Radio News - RF Cafe

Belmont Model 5240 Schematic

Belmont Model 5240 Parts List, July 1948 Radio News - RF Cafe

Belmont Model 5240 Parts List

 

 

Posted August 10, 2022
(updated from original post on 6/17/2015)


Radio Service Data Sheets

These schematics, tuning instructions, and other data are reproduced from my collection of vintage radio and electronics magazines. As back in the era, similar schematic and service info was available for purchase from sources such as SAMS Photofacts, but these printings were a no-cost bonus for readers. There are 227 Radio Service Data Sheets as of December 28, 2020.

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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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