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 ADVERTISER.
iiVve been in the Radio game fifteen years and it's by far the best book Vve ever seen on Radio.''''
Radio
Telegraphy and Telephony
By RUDOLPH L. DUNCAN
Director, Radio Institute of America
And CHARLES E. DREW
Instructor in Radio, and in charge Electrical Division, Radio Institute of America
A Complete Handbook for Radio Students, Operators, Amateurs, Inspectors, and Engineers.
This new book contains most of the information that anyone seriously interested in Radio would want to know. Subjects never before treated in a Radio book are covered here in a thorough, simple, and lucid manner.
26 Chapters: Introduction to Radio; Magnetism — The Electron Theory; The Production of Electromotive Force; Electromagnetic Induction; Motor-Generators— Starters ; Curve Diagrams ; Storage Batteries and Charging Circuits; Meters; Alternating Current and Frequencies; Condensers' — Electrostatic Capacity— Capacity Measurements ; Vacuum Tubes; Receiving Circuits; Alternating Current Operated Receivers and A-C Tubes; Telephone Receivers — Loudspeaker Reproducing Units; Commercial Receivers; Rectifier Devices — Rectifier Circuits — Voltage Divider Resistors— Filter Circuits; High Voltage Condensers; Antennae or Aerials; Resonance; Commercial Broadcast and Telegraph Transmitters; Commercial Tube Transmitters; Short Wave Transmitters and Receivers; Spark Transmitters; The Arc Transmitter; Direction Finders — Radio Compass; Radio Telephone Broadcast Transmitter Equipment; Appendix.
"Radio Telegraphy and Telephony" was published in May. You will find in this book the most recent information on current principles, methods, and equipment. Over 900 pages for $7.50. You may have it on approval for 10 days — but as one radio expert wrote us, "Ten minutes, not ten days, should be sufficient to convince any real radio man that he needs 'Radio Telegraphy and Telephony.' "
A Wiley Book
ON APPROVAL COUPON JOHN WILEY AND SONS, Inc. 440 Fourth Ave., New York City
Gentlemen: — Please send me for examination "Badio Telegraphy and Telephony." Within ten days after its receipt I will send you $7.50 or return the book.
Name
Address
Reference RB 11-29
Your Radio Can Be Only as Good as Its Speaker
"The Speaker of the Year'*
Perfect your reception with a WRIGHT-DeCOSTER REPRODUCER
Write Department "G" for descriptive folder of chassis and different cabinet models.
W RIGHT-DeCOSTER, Inc. St. Paul, Minnesota
He lost control
and- FUMBLED
A brilliant play . . FUMBLED BALL.
a sure touch-down
ruined by a
The follow through was bad . . .
... a beautiful concert ... a good radio set ... a fine speaker ... all ruined by a faulty volume control.
Instead of an even flow of current the listener is rewarded with an incoherent, sputtering programme.
CENTRALAB equipped receivers ALWAYS permit the reception of a
This shows the exclusive rocking disc construction . , . .
of centraiab volume control, "r" is the resist rich, clear, coherent programme —
ance. Contact disc ''D" has only a rocking action
Z^S^^^Z^aZ^am smoothly and without a break.
CENTRAL RADIO
20 Keefe Ave.
LABORATORIES
Milwaukee, Wis.
4 •
• NOVEMBER 1929 •