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Atwater Kent Model 649 All-Wave 9 Metal Tube Superhet. Set Radio Service Data Sheet
November 1935 Radio-Craft

November 1935 Radio-Craft

November 1935 Radio-Craft Cover - RF Cafe[Table of Contents]

People old and young enjoy waxing nostalgic about and learning some of the history of early electronics. Radio-Craft was published from 1929 through 1953. All copyrights are hereby acknowledged. See all articles from Radio-Craft.

 

Atwater Kent Model 649 All-Wave 9 Metal Tube Superhet. Set

The airplane dial of this set changes illumination as the bands are shifted. Both halves are lighted on the broadcast band. the upper half on the S.-W. band, and the lower half on the police band. The tuning ratio is 60-to-1 on the high position. The selectivity control makes possible true high-fidelity when in the low selectivity position. In addition, a 4-position tone control is used. Correct tuning is shown. by observing the shadow tuning meter, which is operated by the plate current of V2 and V3. The set draws 120 W. from the line. The range switch has 3 sections, each of which changes 3 separate circuits.

 

 

Posted December 14, 2016

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 187 Radio Service Data Sheets as of May 2, 2017.

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