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Radio Broadcast
Willis K. Wing Associate Editor
Arthur H. Lynch Editor
John B. Brennan Technical Editor
JUNE, 1925
Cover - - - - - From a Painting by Remington Schuyler
Radio Broadcast's Phonograph Receiver ---- Frontispiece 174
The Story of Broadcasting in England ----- F.J. Brown
New Paths for Short Waves ------- Kenneth Bolles
Making Radio Receivers More Selective ---- Keith Henney
The March of Radio - - - - - J. H. Morecroft
Radio's Part in the Sargasso Sea Exploration Alfred M . Cadd ell The Listeners' Point of View ------ Jennie IreneMix
How to Make a Chemical Plate Supply Unit James Millen "As the Broadcaster Sees It" - - - - Carl Dreher
In the R. B. Lab - - - - i
Simultaneous Tuning How to Remedy Radio Troubles How to Build an Efficient and Simple Loop A Modification of the Knock-out Amplifier A Better Way of Connecting Loud Speakers
Some Facts About Sound Waves - - - B. F. Miessner
The Better Receiver Contest - - - - - -
Take Your Radio Set to the Country! - - - - - 252
Making Your Receiver a Super-Heterodyne A. O'Connor 254
Radio Broadcast's Phonograph Receiver Arthur H. Lynch
The Grid - --- -----
How a Detector Tube "Detects"
Impedance-Coupled Audio Amplification
A Tube Protector
Staining and Polishing Cabinets
The Coil Winding Chart for Calculating Capacity
Panel Dimensions for the Two-Stage R. F. Amplifier
New Equipment - - - - - - - - - 280
175 183 189 198 209 213 220 229 236
243 250
263 272
Copyright, 1925, in the United States, Newfoundland, Great Britain, Canada, and other countries by Doubleday, Page & Co All rights reserved. TERMS: $4.00 a year; single copies 35 cents. F. N. DOUBLEDAY, President NELSON DOUBLEDAY, Vice-President S. A. EVERITT, Treasurer
ARTHUR W. PAGE, Vice-President RUSSELL DOUBLEDAY, Secretary JOHN J. HESSIAN. Ass't. Treasurer
Doubleday, Page & Co.
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