We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
RADIO BROADCAST
ARTHUR H. LTHCH, Editor WILLIS K. WING, Associate Editor JOHN B. BRENNAN, Technical Editor
MARCH, 1926 Vol. VIII, No. 5
Cover Design From a Painting by Fred J. Edgars Frontispiece ' ' A Majestic English Radio Tower A Man and His Hobby E. E. Horine The March of Radio J. H. Morecroft
Can We Forecast Radio Reception from the Weather?
J. C. Jensen
What Multiple Regeneration Can Do For Your Tuned R. F. Amplifier V. D. Landon
As the Broadcaster Sees It Carl Dreher
Drawings by F. F. Stratford
Standards for the Home Laboratory Keith Henney The Listeners' Point of View John Wallace An All-Purpose Coil Winder Edward Thatcher
The First Report on the International Tests
Willis K. Wing
SupeixHeterodyne Construction Harold C. Weber The Grid — Questions and Answers -**«•**
Variable Voltage from a "B" Substitute
A Loop R. F. Receiver
Making Grid Leaks
Operating Characteristic* of the New Tube*
Charging Storage Batteries from D. C.
"Now, I Have Found"
How to Make Balloon Coils
An Audio Bypass Method
Improved Loud Speaker Reproduction
ALow Loss Coil
One Use for a Bypass Condenser
A New Way to Make Money in Radio
D. C. Wilfcrson
A Key to Recent Radio Articles E. G. Shalkhauser What Our Readers Write
546
547 552
558
563 568
573 577 582
588 589 594
600
606 608 618
BEHIND EDITORIAL SCENES
THE present number of RADIO BROADCAST was prepared, and edited during the week of the International Radio Broadcast Tests, but in spite of the disorganization of office personnel and the conventional magazine routine, we feel that a very interesting lot of radio material has been assembled. E. E. Horine, who wrote, "A Man and His Hobby" which is the leading article, is known to many radio men as assistant radio manager of the National Carbon Company. Professor Morecroft, in his comments about the Naval Radio Service, has stirred up considerable discussion, with rather vocal partisans on each side. In attempting to take a neutral position, we have been accused of attempting to accomplish all sorts of dire ends. But as Professor Morecroft has stated, the only purpose has been to indicate what seemed to us to be the facts and to try to discover how conditions may be remedied.
RADIO'S relation to weather conditions has been discussed ever since the coherer days of the art, but we doubt if any more.important or complete information has been presented than Mr. Jensen gives in his article, "Can We Forecast Radio Reception from the Weather?" By carefully studying the maps and curves in the article, experimentally inclined radio folk have opened to them a most interesting field for investigation. And Mr. Landon's article on multiple regeneration is also a frankly experimenta presentation of a subject which has very large possibilities and we expect many interesting reports frbm home constructors who put some of Mr. Landon's suggestions to practical tests. The long-awaited third article in the series for the home constructor who wants to go further in radio than set building appears on page 573, and if the letters addressed to Mr. Henney, the author of the series and director of our Laboratory are any indication, those to follow are also eagerly awaited. That interest is not hard to explain, for the series is packed full of material of the utmost help to the radio-ambitious.
"PROM our correspondence from the increasing number of exJT perimenters interested in short wave transmitting and reedy ing.it would appear that RADIO BROADCAST'S $500 prize contest for the design of an efficient short wave receiver was attracting a great deal of interest. Our amateur contemporary, §ST, devoted a page to announcing the contest in its February issue. For those who have not seen particulars of the contest, full information may be had by writing to the Director of the Laboratory, RADIO BROADCAST, or on page 444 of this magazine for February.
TN THE April RADIO BROADCAST, we can promise another one JL of Keith Henney's absorbing and informative articles on tubes. There will also be a distinctly helpful article on various means of filament control, prepared by John B. Brennan, Technical Editor of this magazine. There will be a review of the International Radio Broadcast Tests which will be of interest to nearly every radio listener who has a receiver more elaborate than a crystal set.— W. K. W.
Doubleday, Page Sr Co. MAGAZINES
COUNTRY LIFE
WORLD'S WORK
GARDEN & HOME BUILDER
RADIO BROADCAST
SHORT STORIES
EDUCATIONAL REVIEW
LE PETIT JOURNAL
EL Eoo
THE FRONTIER
WEST
NEW YORK:
Doubleday, Page Sr Co.
BOOK SHOPS I LORD & TAYLOR BOOK SHOP
\ GRAND CENTRAL TERMINAL CT I -.„.. ( 223 NORTH STH STREET ST. Louis. { MARYLAND AVENUE
I/ „. , OTV J920 GRAND AVENUE KANSAS CITY. { j-g WESJ 4yTH STREET
CLEVELAND: HIGBEE Co.
SPRINGFIELD, MASS.: MEEKINS, PACKARD & WHEAT
Doubleday, Page Sr Co.
OFFICES
GARDEN CITY, N. Y. NEW YORK: 285 MADISON AVENUE BOSTON: TREMONT BUILDING CHICAGO: PEOPLES GAS BUILDING SANTA BARBARA, CAU LONDON: WM. HEINEMANN LTD. TOIONTO: OXFORD UNIVERSITY PRESS
Doubleday, Page Gr Co.
OFFICERS
F. N. DOUBLEDAY, President A. W. PAGE, Vice-President NELSON DOUBLEDAY, Vitt-Presideni RUSSELL DOUBLEDAY, Secretary S. A. EvERirr, Treasurer JOHN £ HESSIAN, Aist. Treasurer
DOUBLEDAT, 'PAGE &> COMPACT, Garden Qity,
Copjrright, 1926, in the United States, Newfoundland, Great Britain, Canada, and oilier countries by Doubleday, Page &• Company. AH rightt ratneo.
TERMS: $4-.00 a year; «fngle oopie. 35 cent*.
598