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Belmont Model 5240 Schematic & Parts List
July 1948 Radio News

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


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     Entertainment
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1000s of Listings
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Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post

Software: RF Cascade Workbook
RF Stencils Visio | RF Symbols Visio
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Espresso Engineering Workbook

Aegis Power  |  Alliance Test
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ISOTEC  |  Reactel  |  RFCT
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Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

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Belmont Radio Corporation: A Brief Overview and Historical Context

Belmont Radio Corporation logo - RF CafeBelmont Radio was a manufacturing company that produced a range of radio equipment, including radios, amplifiers, and speakers. The company was known for its innovative designs and high-quality products, and was a leader in the radio industry during its time.

Founded in the early 20th century, Belmont Radio began as a small company that produced simple crystal radio sets. As radio technology advanced, the company expanded its product line to include more sophisticated radio equipment, such as amplifiers and speakers. Belmont Radio also developed its own patented radio technologies, which helped to set it apart from its competitors.

One of the key innovations that Belmont Radio is remembered for is its development of the "All-Wave" radio, which allowed listeners to receive broadcasts from around the world. This was a significant advancement in radio technology, as previous radios were limited to receiving local broadcasts. Belmont Radio's All-Wave radio was widely popular and helped to establish the company as a leading manufacturer of radio equipment.

In addition to its radio equipment, Belmont Radio was also known for its distinctive, high-quality speakers. The company's speakers were designed to deliver excellent sound quality and were popular with both radio enthusiasts and music lovers. Belmont Radio speakers were used in a variety of settings, including homes, businesses, and public spaces.

Unfortunately, as the radio industry evolved and new technologies emerged, Belmont Radio struggled to remain competitive. The company eventually went out of business, but its legacy lived on through its many innovations and its high-quality products. Today, Belmont Radio is remembered as a pioneering company that helped to shape the radio industry and bring the magic of radio to the masses.


This content was generated by the ChatGPT artificial intelligence (AI) engine. Some review was performed to help detect and correct any inaccuracies; however, you are encouraged to verify the information yourself if it will be used for critical applications. In some cases, multiple solicitations to ChatGPT were used to assimilate final content. Images and external hyperlinks have also been added occasionally. Courts have ruled that AI-generated content is not subject to copyright restrictions, but since I modify them, everything here is protected by RF Cafe copyright. Your use of this data implies an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all of its assigns. Thank you. Here are the major categories.

Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology

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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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