Radio Broadcast (May 1928-Apr 1929)

Record Details:

Title:
Radio Broadcast
Date:
May 1928-Apr 1929
Publisher:
Garden City, N.Y., Doubleday, Page & company [etc.]
Volume:
Radio broadcast ..
Leaf #:
000494
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:
November 10, 2022
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Irl RADIO BROADCAST ADVERTISER rP0WER TRANSFORMERS^] For the UX250 Power Tube Type 565-A Transformer (200 Watts) Price $13.50 Bulletin No. 931 will be sent on request The General Radio Type 565 Power Transformers consist of two models for both half and full-wave rectification utilizing the 281 type of rectifier tube. The Type 565-A HalfWave Transformer illustrated consists of one 600-volt secondary, two secondaries of 7.5 volts and one of 2.5 volts. It is designed for 105 to 125-volt, 50 to 60-cycle lines. GENERAL Radio Company 30 State St. Cambridge, Mass. 274 Brannan St., San Francisco, Cah ^ush-pull Transformers with impedances to match power tubes and dynamic speakers Type "BX" Input Transformer has extremely high primary inductance. Secondary accurately divided. Price, each $6.50 Type "GX-210" Output Transformer. Especially designed for push-pull amplifier using UX-210 or CX310 tubes. Secondary connects directly to moving coil of dynamic speaker. Price, each .$6.50 Type "IIX-171" Output Transformer. Same as above except impedance matches UX-171, CX-371, or UX-250, CX-350 tubes. Price, each $6.50 Free circular giving audio hookup and complete information on request SANGAMO ELECTRIC COMPANY Springfield Illinois