Radio Broadcast (May 1929-Apr 1930)

Record Details:

Title:
Radio Broadcast
Date:
May 1929-Apr 1930
Publisher:
Garden City, N.Y., Doubleday, Page & company [etc.]
Volume:
Radio broadcast ..
Leaf #:
000149
Language:
English
Subjects:
radio periodical, Radio -- Periodicals
Contributor:
Library of Congress, MBRS, Recorded Sound Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
Radio Broadcast supported home listeners of the new technology of radio – for building or buying a receiving set to explaining the technology used by the new radio stations. Throughout the magazine shows the cultural influence of radio as it evolved from hobbyist to mainstream. -- David Pierce, 2011
Date Added:
September 29, 2022
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.RADIO BROADCAST ADVERTISER. 3T PAM-5 Keeps Pace with the Best PAMs kept thousands along the shore of Biscayne Bay in constant touch with every phase of the International Boat Race pictured above. The voice of the announcer was easily heard above the roar of the giant motors used by Gar Wood and Seagrave. Wherever speed kings reign — on track, or ice, or sea— in this and other lands, there you will find PAMs which tell the crowds every detail of the contest. Pictured above are two new PAMs, the PAM-5 which uses one 227, one 280 and two 112s, and is designed to work out of the detector tube of a radio set, a magnetic phonograph pickup, or microphone amplifier. Its output is such that it will feed any number of PAM-25s according to power output required for a particular installation. The PAM-25 uses two 281s and two 250s. When used in conjunction with a PAM-5, it has a power output of 14 watts. Multiples of this undistorted output can be had by the addition of each PAM-25. A new 16-page bulletin giving mechanical and electrical characteristics, representative installations, and many new amplifiers will be sent upon receipt of 10c in stamps to cover postage. Ask for bulletin No. when writing. Main Office: Canton, Mass. Manufacturers Since 1882 Factories at Canton and Watertown, Mass. • JULY • 1 929 • • 129