Majestic "Models 50," "51" and "52" Radio Service Data Sheet
February 1931 Radio-Craft

February 1931 Radio-Craft

February 1931 Radio Craft Cover - RF Cafe[Table of Contents]

Wax nostalgic about and learn from the history of early electronics. See articles from Radio-Craft, published 1929 - 1953. All copyrights are hereby acknowledged.

Majestic Model 50 radio on eBay - RF CafeGrigsby-Grunow produced radios under the trade name of "Majestic." The Majestic Model 50 is a tabletop, vacuum tube, superheterodyne radio receiver of the popular 'tombstone' configuration. The example to the left is from an eBay listing.

Majestic "Models 50," "51" and "52"

The Model 50" chassis is used in the "Model 52" Majestic superheterodyne ; removing the legs from the small cabinet, thus making a radio set of the mantel type, results in the "Model 51" receiver. This circuit is one of the latest developments of the Grigsby-Grunow Company, Chicago, Ill.

Majestic "Models 50," "51" and "52" Radio Service Data Sheet, February 1931 Radio-Craft - RF Cafe

Tune in a station at approximately 1,280 kc. and align the oscillator and antenna or band-selector condensers C5, C8, C9. Next, tune in a 600-kc. signal and adjust the tracking condenser C6, while slightly rocking the tuning condenser knob from side to side, until maximum signal strength is obtained.

The manufacturers advise that under no conditions should an attempt be made to use a ground connection on the antenna binding post.



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 220 Radio Service Data Sheets as of February 2, 2018.