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 #:
000845
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:
July 18, 2024
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-z. RADIO BROADCAST j\o. 21 Radio Broadcast's Set Data Sheets April, 1929 THE DAY-FAN 8-AC POWER SET This receiver is completely light-socket operated and uses five 226 being used for neutralizing purposes to prevent the amplifier from type tubes, one 227type tube and two 17lA-type tubes. It should be oscillating. A jack in the plate circuit of the detector permits the use noted that each r.f. transformer contains three coils, the third winding of a phonograph pick-up unit. ,Red £M3 Red Yellow with . Black Tracer Slack & Yellow Yellow 'Wipnnnnn r — Line r (S 280* Red Black Green Red. 171 \j \r Blue 3 ^^AW-VVV\A-*-/^VW-K^VWvW» WW THE FRESHMAN MODEL 2N-12 RECEIVER This Freshman receiver utilizes the Equaphase circuit in which an thus making it impossible for the tubes to oscillate. The output circuit Equaphase stabilizer is used in each plate circuit of the r.f. amplifier of the set has been arranged to permit the use of either ordinary cone tubes. These stabilizers tend to make the plate circuit non-reactive, loud speakers or moving-coil loud speakers. .Volume Control Equaphase Stabilizer 0-335 226 i mmfd. 400 ohms . Equaphase Radio 0-335 Equaphase 3 megStabilizer .Trans mmfd. Stabilizer ohrrij 226 ,„„ ! . ..-226 4Q0 0.002 Orange Audio mfd., ; Trans. Red Jack(Dynamic Orange Tip Jacks Speaker) j ', Output (Magnetic, ^ Trans, Speaker); Black -Red' The data which has been given in the description of the receiver in previous "Set Data Sheets" has been lettered on the above diagrams • april, 1929 . : . page 403 O