Radio broadcast .. (1922-30)

Record Details:

Title:
Radio broadcast ..
Date:
1922-30
Publisher:
Garden City, N.Y., Doubleday, Page & company [etc.]
Volume:
Radio broadcast ..
Leaf #:
00030
Language:
English
Collection:
Broadcasting & Recorded Sound
Format:
Periodicals
Contributor:
Prelinger Library
Sponsor:
MSN
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:
July 19, 2022
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Radio-frequency sig- nals of amplitudes down to murosolte can be obtained from the signal generator shown above. The Hazelline Laboratories, located on the top floor of a multi-storied Manhattan building, have ample light in their well-equipped mechanical workshop. ? "cage" room pictured on the left us shielded from electrical disturb- ances and is used for making many measurements. It is equipped with instruments (General Radio) for measuring inductance, capacity, and resistance. Selectivity, sensitiv- ity, and fidelity characteristics of re- ceivers are measured with this shielded "t/ain set." The drafting room is a very important parl of any well-equipped laboratory. THESE UP-TO-DATE LABORATORIES SERVE HAZELTINE LICENSEES On this page are presented various views in the new laboratories of the Hazelline Service Corporation, maintained for the benefit of the licensees of the Hazeltine Corporation. Radio set manufacturers in the United Stales who are licensed under the patents of this organization are: All-American Mohawk, Amrad, Fada, Bremer-Tully, Crosley, Earl, Freed, Gilfillan, Grebe, Howard, King, Philco, Stromberg-Carlson, and U.S. Radio and Television. NO VEM BER 1929 31