Radio mirror (Jan-Oct 1923)

RADIO DIGES T— Illustrated September 33, 1931 Station WJZ Explains Use of Direct Wires in Sending Various Programs Microphones, Usually Concealed in Manhattan Places of Amusement, Are Connected by Temporary Equipment to Main Circuits Thence by Lead-Offs to Main Artery System By J. Zi. Bernard NEW YORK. — Few people who read the Radio programs have a clear conception of what is meant by the phrase "this concert wiU be broadcast by Station WJZ by direct wire from the Theater" or wherever the event is held. The layman's imagination does not seem to favor the Idea of using wires in connection with Radio broadcasting. The heart of the "direct wire" system used by WJZ is composed of three main arteries. In addition to these three arteries there are nine additional permanent wires. From these lines are run underground to Aeolian Hall Building thence to the control room of the station. Various other net works of wires are tapped off, and which lead to the station from the main circuits. This artery system enables WJZ to reach many points in Manhattan, and affords the Radio audience a multitude of concerts, talks, and plays which they could otherwise never receive. Success of Play Determined First When a Broadway production is to be broadcast, a member of the program staff Is detailed to review the play about a week in advance of the proposed date — If the play has enough of its success in the songs and lines, it is considered a Buitable Radio subject, while if its success Is due to costumes and dancing, with no entertainment for a "blind" listener, it is of no value as a broadcast feature. Assume that a show has been found suitable — what procedure is followed by the "outside crew" of the station? About two days before the broadcasting date a wireman installs the necessary backstage wire connections, which are of course temporary in the case of the theaters. On the afternoon of the day set for the performance the outside crew set up their equipment backstage. The microphone is concealed in the footlights in most cases, but may be suspended above the stage. Everything is in readiness by the time the first of the audience straggle in, and the announcer arrives in full evening' regalia to introduce -the theater audience to the Radio audience. The announcer generally has a microphone just back of the scenes, so as to be in close touch with all that goes on, but occasionally is given a small dressing room, with interphone communication with the stage. As soon as the performance is over the microphones are removed. How Goldman Concerts Are Sent In the case of the Goldman Band Concerts on the Hall, which are being sent out from WJY-WJZ, the wire is run through the trees in the park, well out of reach of passers-by, to the main circuit thence to the station by way of a leadoff. The wire is tied high up on one of the posts of the band stand, a table is requisitioned, and the microphone stands in full view of the leader. The announcer nses a separate microphone, and stands Coast to Coast on One Tube and No Body Capacity These popular hook-ups use UV-199. WD-11 or WD-12 Tubes. One hook-up gives selectivity and 1500 miles with absolutely no body capacity, while the other gives the remarkable distance of coast to coast. Both prints postpaid for 50 cents or any of. the above tubes postpaid $5.45. RADIO OUTFITTING & SUPPLY CO. Box 1107 LANCASTER, PA as near the leader as possible so that one may time his actions to fit in with the leader. In St Thomas' Church the installation is permanent, the microphone being properly located to effect perfect transmission from all parts of the service. There is a permanent installation in the Mark Strand Theater, and the music which is broadcast from . this theater every week has become one of the most popular of Radio concerts. Everything is run according to a time schedule, with no allowance for hitches or mishaps (not one has ever occurred). The theater management has fitted up the screen room as a miniature broadcasting studio, and after the artists have completed their turns on the stage they may broadcast a purely Radio program. Behind in the Background Visitors at the Waldorf-Astoria, Plaza, Commodore, and the Astor Hotels this past season have known the purpose of the little black disc suspended in the midst of the tea-room orchestra. The little black disc is the microphone, the only part of j the transmitting apparatus visible to the public. Hidden in the near background there are always two operators and an announcer. Because they always keep in the background very few of the diners and dancers at the various hotel roofs have realized that the music to which they danced was being sent out to all parts of the country — there is so little ostentation about the process that it seems uncanny. HAWAII RE-SENDS CONCERTS IN U. S. Honolulu Plant Picks Up Programs Broadcast by KHJ, Los Angeles HONOLULU, T. H.— New honors are now being reaped by Station KHJ, the Los Angeles Times, this time consisting of the rebroadcasting of the Times' programs by a Honolulu station here, KGU, the Honolulu Advertiser. This marks the first instance of transoceanic rebroadcasting, doubly remarkable in view of the difficulties of longdistance reception during the summer months in the South Pacific. However, KHJ is being heard nightly in all parts of the Hawaiian group. During the cool part of last season several stations in the states featured rebroadcasting programs from KHJ, particularly in the South and Southwest. KGU, the Honolulu Advertiser, is only a fiftywatt station, but it makes KHJ programs available to a large area in the Pacific. Cheers Porto Rico Lepers SAX JUAN. — The leper colony on Cabras island, Porto Rico, recently watched with intense interest and excitement the installation of a receiving outfit. The exiles are now overjoyed to find themselves once again in contact with human affairs. A variometer and a variable condenser make a set easily operated by beginners. WATCH FOR OUR ANNOUNCEMENT To those Radiophans who appreciate highgrade, standardized Radio apparatus we will offer parts designed by our Radio Engineer. (Inrentor of the Flivver Circuit) RUEIL MANUFACTURING fOMPANY Cottage Grove at 30th Street CHICAGO WATCH FOR OUR ANNOUNCEMENT 1«Nn»Gfefts3S3C P™*«+ lSJr» A YOU MAY RECEIVE all broadr unit rsu. *t casting with this Receiver—its range 200—600 metres covers the wavelengths of all broadcasting stations. Just One of its Seven Points of Satisfaction Ask Your Dealer A. H. GREBE & CO., Inc. Richmond Hill, N.Y. Receive in Comfort —Get Long Distance by using ALL-AMERICAN AMPLIFYING TRANSFORMERS Once you have equipped your set with "AllAmerican" Transformers, you will be impressed with the absence of distortion — the amazing volume. Combined witk these unusual dualities, there is that continuance of performance, day after day — week after week — and year after year. 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Bakellte 1.25 .40 .85 .40 .10 1.00 .95 2.00 JO .19 .49 .49 .95 2.25 2.95 4.95 3.95 .39 .49 .89 .50 .12 .10 .08 M .12 M .02 .10 09 .05 .03 .06 .08 .08 .OS .14 .12 .15 .15 .OS .05 .06 DIALS 2-lnch 2f •<>« 3-inch 35 .03 4-lneh -*9 -0* State and City Officials Lead First Club, Chicago CHICAGO. — The first Chicago Radi« club to be incorporated and chartered has just been established in the 49th ward, from which it gets the name of "The 49th Ward Radio club. Inc." The president is Philip J. Alt, of the city department of buildings. George A Williston, a state representative, is vice-president and John E. JIaloney, runner up in the aldermanic contest last spring is secretary. The charter roll of members totals 400. The meeting place, temporarily, will be at 1359 Devon avenue. It is now possible to send a Radio letter to London and Germany at rates only slightly higher than postage. Kellogg Radio Equipment For Better Results Transformers Kellogg transformers i are designed to overcome defects of existing types and to furnish distortionless amplification of all audio frequencies. Built c o m plete by the Kellogg Company, using highest grade wire, maroon enameled metal case, and molded Bakelite top. The primary and secondary binding posts are accessibly placed on top of the transformer. These binding posts are plainly marked, so that there need be no error in assembling. Every Kellogg transformer is thoroughly tested before leaving the plant, and we guarantee the purchaser a product of exceptional efficiency. No. 501 Ratio 4H to 1 $4.50 No. 502 Ratio 3 to 1 4J0 KEUOGC SWITCHBOARD G SUPPLY COMPANY 1066 West Adams Street, Chicago, Illinois Ml Fulton St., Dept. 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