Radio age (Jan 1927-Jan 1928)

RADIO AGE for October, 1927 35 licensees will be dictated by the R. C. A. Furthermore, although Mr. Sarnoff concedes, undoubtedly by advice of counsel, the right to other manufacturers "not infringing patents" to compete for the replacement market, it needs no argument in a magazine read by the radio trade to prove that this clause is intended to assure to the Radio Corporation a complete monopoly of the tube business. Mr. Sarnoff may claim that this is fostering "legitimate competition," and it is probably true that this fostering has been carefully guided by his legal department because it is obviously designed to give the Radio Corporation control of its competitors and to keep them in subservience. How many radio manufacturers in the past three years could have met an additional 7y2 per cent cash outlay at the end of each radio season? How many could have paid the $100,000 a year minimum? Each year the ranks would have decreased. All the commercial uncertainties of the past are still with us, and now the licensees have the additional one of making the public pay the increased price necessitated by these royalties. No one knows better than Mr. Sarnoff the financial vicissitudes 'i nder. 132 pages about i dio. Chock full oft ts, transmitter parts, short i outfits, eliminators and speakers. lands of bargains at lowest wholesale prio_ . . A regular Radio Encyclopedia— Free. Write today. American Auto & Radio Mfg. Co. — From— ■K^rf BpJjUJBiB — To— 5 tubes Hp^ mM I 10 Tubes 1 Dial ]/£&?.. wL 2 Dials By a Turn of the Switch The New DualPurpose 1928 fnfradjtne At the San Francisco Radio Exposition the new 1928 Infradyne "stole the show." It proved that the real radio enthusiasts want something better, something that will out-perform all competition. Of course, interest focused on the Infradyne. Here is a circuit — built in a few hours — easy to operate — which will roam the ether and pick out station after station which no one else can get. And yet its ability to snare stations thousands of miles away means no sacrifice of selectivity or tone purity. This is 1930 radio today, "for the man who looks and thinks ahead." The following Remler units, plus a few incidental parts, will give you a complete Infradyne. Remler Foundation Kit No. 750 $52.00 Remler Infradyne Cabinet, No. 760 15.00 Remler R. F. Amplifier, No. 710 _ _ 55.00 Remler Infradyne Amplifier, No. 700 27.50 Write for complete descriptive information 260 First Street WW ■■ WkJk fc" mJr Chicago San Francisco ^% §am |y | kl MH W\ New Y°rk f Division of \ GRAY & DANIELSON MFG. COMPANY Eastern Warehouse Elkhart, Indiana p. Best Hookups — Thirty Cents Each ! We have laid aside a limited number of back issues of RADIO AGE for your use. Below are listed the best hookups and diagrams to be found in them. Select the ones you want and enclose 30 cents in stamps for each one desired March, 1926 — Improving the Browning-Drake. — Rheostatless Tubes in a Set. — How to Make a Wavemeter — Blueprint. May, 1926 — 'Short Wave Transmitter — Blueprint. — Simplifying Battery Charging. — Protecting Your Inventions. June, 1926 — Simple Srystal Set. — Golden Rule Receiver — Blueprints. August, 1926 — Receiver, Transmitter and Wavemeter. — Beginners 200 nrile Crystal Set. — Changing to Single Control. September, 1926 — How to Make a Grid Meter Driver. — Short Wave Wavemeter. — Power Amplifier for Quality (Blueprint) October, 1926 — Crystal Control Low Power Transmitter (Blueprint.) — Raytheon Design for A B C Elimination — What Type Loud Speaker to Use. — Nine Tube Super Brings Back Faith. November, 1926 — Blueprints of the Henry-Lyford. — Worlds Record Super With Large Tubes. — How to Use a Power Tube in Your Set. December, 1926 — Starting Radio with Crystal Set. — Six Tube Shielded Receiver. — Types of Rectifiers Discussed. January, 1927 —Full Data on Worlds Record Set. —Dual TC Receiver. — Clough Super Design. February, 1927 — Building the Hammarlund-Roberts. — Making a 36 Inch Cone Speaker. — Browning Drake Power Operated. March, 1927 — Ideal Model Worlds Record Super. — Building the Hammarlund-Roberts. — Ridding Supers of Repeat Points. — Loop and Four Tubes. April, 1927 — Inexpensive B. Eliminator. — One Spot Superhet. May-June, 1927 —Complete Trouble Shooter for Supers. — 9 Tubes for Worlds Record Super. July-August, 1927 — Building Vacuum Tube Voltmeter — Low Power Crystal Control Transmitter. September, 1927 —New A. C. Tubes in a Six-Tube R. F. Receiver (b*ue prints.) Radio Age, Inc., 500-510 N. Dearborn St., Chicago as=s»«3 Sgs3S5gg=5«S5gg=S=agg3S3S^^