Radio mirror (Jan-Oct 1923)

RADIO DIGEST May 19, 1923, TUBE SUPPLY QUIZ TO DISCLOSE FACTS CHAMBER OF COMMERCE TO SURVEY CONDITIONS Broadcasting Section Announces Careful Study of Copyright Controversy Caused by Music Publishers NEW YORK. — A national survey of the vacuum tube supply in this country has been undertaken by the National Radio Chamber of Commerce, it was announced recently, at headquarters of the chamber, 165 Broadway. This survey, the first to be made and said to be well under way, "vitally concerns every one in the Radio industry as well as the public," according to the announcement, issued after a meeting of the Board of Governors, at which numerous groups were represented. The Governors, it was stated, acted at the request of the chamber's membership and of other elements in the Radio industry. Discloses Actual Situation Tresham D. Gregg, one of the engineers and managers of the Chamber, said that the survey claims to disclose the actual situation nationally with regard to the tube supply. Specifically, the supply of the following tubes is concerned: 200, 300, 201, 301, 201-A, 301-A, DV-6, DV-6A, WD 11 and WD 12. Among the questions asked are these: "Have you an adequate supply of these tubes?" "Have you a supply in sight for the next two months?" "If the supply of any of these tubes is short, when did such shortage first appear?" "What number of each would you deem an adequate stock?" "What number of each does your trade normally demand for the season?" Aids Development of Radio The survey, it was explained, is a part of a program to aid in the orderly development of the Radio industry in the interest of both the industry and the general public. Co-operation with the Department ol Commerce and other Government departments, as well as with universities and public and private institutions is embraced in the plans. The broadcasting section of the Chamber, it was also announced, is making a careful study of the copyright controversy between the American Society of Composers, Authors and Publishers and the broadcasters. A conference to consider this conflict was held by the Chamber recently. Middle West broadcasters were represented by John E. Jenkins, of Chicago. Membership in the Chamber, which now takes in all interests from manufacturer to listener, has, it was stated, recently increased about thirty per cent. The educational section is pushing its work among the universities and churches. WEAY Promises Real Amusement HOUSTON, TEXAS. — Preparation of an elaborate midnight program featuring professional and proven local talent, is now at the point where Radiophans may expect witchy hours to bring real amusement from WEAT. This station has been sending one program each week from The Evening Post studio, Friday nights; from McMillian's dancing academy Wednesday nights and from the First Baptist church Sunday nights. NAVY TO ABANDON PLANTS ON LAKES Eight Stations "For Sale" by Government— Radio-Compass Service Remains GREAT LAKES, ILL. — The navy department has decided to abandon virtually all of its Radio service on the Great Lakes with the exception of the Radiocompass stations, and will shortly advertise eight Radio stations for sale. Lack of men and money to operate them led to the decision to abandon the plants. An inventory of the material and supplies to be sold is being prepared by the district communications superintendent, Lieut. A. G. Berry, preparatory to advertising for bids. The stations to be abandoned are located at Alpena, Mich., Buffalo, Cleveland, Detroit, Duluth, Mackinac Island, Milwaukee and Manistique, Mich. Stations at Chicago, Great Lakes and Eagle Harbor will be retained, in addition to the Radio compass stations at Detour, Grand Marais and Whitefish Point, Mich. The three Radio-compass stations safeguard vessels passing through the fog enshrouded lower end of Lake Superior, Whitefish Bay and St. Mary's river. Besides handling the Radio business of the lakes the stations to be closed have taken care of most of the commercial messages passing between Great Lakes ships and the shore. The strictly commercial Radio companies have never invaded the Great Lakes field, and with the exception of a few stations privately owned by the steamship companies, virtually all business has been handled by the navy Radio. Commissioner Gets Mules by Radio ATLANTA, GA. — While in Atlanta recently on a Radio inspection trip, Commissioner Carson of the Department of Commerce, was advised that his best team of mules had disappeared from his farm in a nearby state, and being later in the broadcasting station of a local paper he let their loss be broadcasted with a description. A few days afterwards when in Nashville, 'he was advised that his mules had been found. SEND FOR BOOKLET TRUTH ABOUT VARIABLE LEAKS AIREX REVELATION LEAKS 0-5 MEGOHMS VARIABLE LEAK ONLY 25c DITTO WITH .00025 or .0005 MICA CONDENSER 35c PAY NO MORE ATTRACTIVE DEALER & JOBBER PROPOSITION SOLE NATIONAL DISTRIBUTOR ALBERT J. SLAP 132 NASSAU ST., NEW YORK CITY ptogjrip Built First to tost" This little beauty was approved by our engineers only when convinced that they had pro* duced the one socket that combines all the essential features of a good socket. Positive Cotogrip Contacts. Hard Rubber Insulation, Rugged Construction. Compact Design. Concealed Mounting. It is impossible to show the unique mechanical action of Cotogrip contacts in a photograph. It is different from any other socket you have ever seen. This socket will interest you in every way. You ought to have one. Ask Your Dealer C0T0"C0ILC0 PROVIDENCE Atlantic City's Crowds Stroll to Ether Music City Officials Plan to Entertain Visitors Daily ATLANTIC CITY, N. J. — Crowds on Atlantic City's famous boardwalk were surprised one Saturday afternoon recently to hear voices of invisible speakers and singers above the boom of the surf and the myriads of sounds peculiar to the "Great Wood Way." The sounds came from a set of amplifying apparatus, known as a public address system, installed by the Western Electric company and being tested for a group of city and hotel officials. A motor truck carrying the vacuum tubes, control apparatus and batteries was parked alongside the Brighton hotel. Wires connected it with a microphone in the concert hall of the National Exhibitors and to soundprojectors mounted at intervals on the Brighton and the Traymore. Speeches and music were distributed clearly along 2,000 feet of the boardwalk. City officials are considering a permanent installation of loud speakers along the entire boardwalk, so that everyone on it could hear addresses by prominent visitors, play-by-play stories of important games, dance music from local hotels, and all the rich variety available through tapping the programs of nearby broadcasting stations. A movement is under way to provide Toledo, Ohio, with a Radio broadcasting and receiving -station for its police department. MEXICO HAS FIRST BROADCAST PLANT Transmitting on 400 Meters from Regional Exposition of Nuevo Leon MONTEREY, MEXICO. — The first Radiophone broadcasting station ever successfully operated in Mexico now is sending out programs from the Regional Exposition of Nuevo Leon, according to Radiophans, who heard the announcer's name given as Senor Reyes. The station uses a wave length of 400 meters. Musicians and public speakers have volunteered to work every night if necessary to supply entertainment to mining camps. ADJUSTABLE COIL MOUNTINGS FOR FLEWELLING CIRCUIT Triple Coil Mounting $5.00 List Double Coil Mountings 3.50 List A patented feature locks tlie coil in place and prevents the coil from being thrown out of adjustment once station is tuned in. Licensed under TT. S. De Forest Pat 1365170 Dealers write for special discounts ASTORLOID MFG. CO., SSEESf A?: Delicate Soldering Both the manufacturers' and amateurs' problems on all fine work are readily solved by the instrument constructed for this particular purpose. THE POST SOLDERING IRON Platinum Heating Unit — Interchangeable Tips — Universal Current (.Large and Small) §{* V ONE -HALF ACTUAL SIZE ■ H^| Awarded Certificate of Excellency, N. Y. Evening Mail Radio Institute ^Jr From your Dealer, or write POST ELECTRIC COMPANY (Dept. 509), 30 E. 42nd St., New York "Fame is the follower of reality." YuTse The unrivalled reputation of the Grebe Receiver is built upon its years of thoroughly dependable service. Write for "Musings of Dr. Mu" Licensed under Armstrong U. S. Pat. No. 1113149 A. H. GREBE & CO., Inc. Richmond Hill, N. Y. Western Branch — 451 East 3rd St., Los Angeles, Cal. Kunm