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 #:
000345
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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~2L . RADIO BROADCAST ADVERTISER. ffmal Tests Z^f ... to assure perfection Naturally — every TRIAD Tube is constantly, rigorously tested throughout the entire manufacturing process — a special test follows every individual operation. Yet TRIAD does more than that! When completed, each TRIAD Tube is subjected to nine additional and final tests for vital characteristics — tests so stringent that nothing short of absolute perfection can survive them ! This infinite care in manufacture has won for TRIADS their reputation for superior quality — and has made possible that guarantee that goes with every TRIAD Tube — a minimum of six months' satisfactory service or a proper adjustment. You can rely on TRIADS — the tubes backed by an actual Insurance Certificate! Call your jobber or write us direct for complete TRIAD information. TRIAD MFG. CO., Inc., Pawtucket, R. I. Tune in on the TRIADORS every FRIDAY evening, 8 to 8:30 Eastern Standard Time, over WJZ and associated NBC Stations. TRIAD RADIO TUBES I FINAL TESTS ~1 Below are listed the nine final tests for vital characteristics to which every TRIAD Tube is subjected. 1 Gas 2 Emission 3 Filament Current 4 Plate Current 5 Oscillation 6 Grid Voltage 7 Mutual Conductance 8 Plate Impedance 9. Amplification Constant • OCTOBER 1929 • • 3 15