Indianapolis Times, Volume 36, Number 242, Indianapolis, Marion County, 19 February 1925 — Page 16

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4,500,000 LISTEN IN ON CHICAGO RADIO POINTS Survey Shows 33 Ptr Cent of Fourteen Million in 250Mile Radius Hear Concerts,

Chicago radio stations bay© 4,500,000 regular listeners within a radius of 250 miles of tie city, a survey of the city, a surroy just completed by the Sears-Roebuck Agrih'tk'iffp?

The radio department solicits communications from fans regarding DX records, radio programs, suggestions and criticisms, address your letters or cards to Radio Editor the Indianapolis Times.

* Radio Editor Times. Win the Pacific Coast stations have new wave lengths the same as the stations In the Eastern part of the country. FRANK MARSHALL, City, Several of the Pacific Coast stations have already received new wave lengths and no doubt that all stations will be operating on new wave lengths on the Pacific Coast in the next several weeks. How many broadcasting stations are there in New York City at the present time. C. L. JONES, Paoli Ind. The Department of Commerce lie's fourteen broadcasting stations at the present time in New York City. This list includes stations of all classes. Radio Editor Times. What Is the name of the announcer at stations W'SB, Atlanta, Ga. How should a letter be addressed to reach him. A RADIO FAN. Address your letter to Lamodin Kay care of Radio station WSB, Atlanta, Ga Radio Editor Times. The following is my log for February 13, WHAS, WTAM, KFRU, WLW, WWJ, WGN, KDKA, WCCO, WEAF, WCAJP, WBAP, WFAA, WGBS, WCX, WOR, WTAS, WPG, CNRT, WJAR, WAHG, WLIT, WBZ, KHJ, WQJ, KFI, WDAF, WJJD, WOS, WCBD, WKAR, Kl’KB, CNR A, CKY, KOA, WGR, WLS, WGY, WEBH, WMBF, KELZ, KNX, KPO. CKCK, CYL, and 6KW I heard all of these stations on a two tube Roberts receiver using W. D.H. tubes. HERBERT RAQUET, Arcadia, Ind.

Cooper Crosley, Day Fan and Work Rite Neutrodyne Receiving Sets. Cunningham Tubes. Manhattan, Herald, Thorola and Thorophone Loud Speakers. Erla, Frost, Remler, Bremer-Tully, Burgess, and many other wellknown Radio Products, as well as Cooper RADIO WAND ITbATTERIES . Hoar the Cooper program Thursday Night at WLW, Cincinnati. DEALERS] Stop in. Bee our seta and get oar price* The L J. Cooper Rubber Company Capitol Ate. and ermont St.

cultural Foundation Broadcasting Stations WLS shows, It was announced today. The survey included personal interviews with over two thousands persons In thirtytwo cities within this radius and mail questionnaires answered by 4,000 others in ninety places. Os the estimated 14,000,000 people living within 250 miles of Chicago, approximately 35 per cent own radios or hear Chicago stations on neighbors’ sets, the survey revealed. All but 6 per cent of the persons approached In the survey reported hearing Chicago stations at some time and fully 82 per cent had heard WLS. Some hear Chicago at their place of business, others on roomers’ equipment, while still others hear programs at clubs. Farm Bureau meetings, business houses, high schools, churches, hotel lobbies, news stands, candy kitchens, garages and radio dealers’ showrooms. Creameries, grain elevators and livestock marketing organizations were also discovered to be making use of radio market report*: regularly, many posting the markets on bulletin boards for the information of those interested. The survey further revealed the trend in programs desired by radio listeners. music is most popular, and Is followed closely by vocal music, with a decided preference for male voices. Farm and home programs also rank high, while radio plays, readings and speeches are favored In the order named. Os the special WLS features, Lullaby Time, noonday and Saturday night programs were commented on in the order given. • U. S. STATIONS STRONG Sailor Tunes in While on Long Voyages. LONDON, Feb. 19.—American radio broadcasting stations as a general rule have a greater radius of transmiss, on than British stations of the same power, according to a sai-lor-man correspondent of the Daily Mall. Duripg the last year the Mali’s correspondence has made six voyages to the Mediterranean from the United States and has consistently listened In on each voyage on his home-made four-tube set. He was able to pick up KDKA, Pittsburgh; WBZ, Springfield, Mass., and WGY, New York, the whole way the Atlantic to Gibraltar,. and on one occasion got KDKA on three tubes while in port on the east coast of Spain. Other American stations were picked up on two tubes at distances as great as 2,500 miles with good results.

THE INDIANAPOLIS TIMES

Entertains KOA’s Audience That Dances A

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U " “■JOW’LL you have your dance |l_l| music—you dance gliders? 1* *1 asks Joe Mann whose Rainbow Lane orchestra holds forth at KOA. Denver, every Saturday evening. This orchestra bs been

NEW RADIO PATENTS

WASHINGTON, Feb. 19.—Patents on eight new radio inventions were granted by the United States Patent Offlce during the past week. A brief description of these new inventions follows: * Direct reading radio telegraphic compass (No. 1,525.177), Invented by Robert B. Goldschmidt and Raymond Braillard of Parte, France. This invention enables the measurement of radio signals to be made Instantaneously and automatically and reduces the finding of the azimuth to a simple reading of a graduated circle. Crystkl detector (No. 1,525,159), Invented by Henry M. Wohlman and Max Harschfeld of Brooklyn, N. Y. The principal object of this Invention is to permit the replacement of old crystals with new ones. Electron-discharge tube (No. 1,525,049), Invented by Samuel Ruben of New York, N. Y. The object of this invention is to provide an efficient low cost means for detecting and amplifying received radio frequency oscillations. Vario coupler (No. 1.524.976), Invented by Charles w. Kautz of Lancaster, Pa. The primary object of Radiograms There are 60,000 radio receiving sets now in use In Australia’. In Germany, all who do not pay the government tax on receiving sets are called “black listeners.” One hour a day of a national radio program, interconnected over the whole country under some independent direction has been suggested by Herbert C. Hoover. One hundred and twenty-five broadcasting stations are 'assisting the United States weather bureau in the transmission of weather forecasts, storm and flood warnings and special forecasts for orch&rdists and beekeepers. A bill has beer. Introduced In the Legislature of Connecticut to prohibit .“emitting any noise or other disturbance which deliberately interferes with broadcasting of concerts and other programs between the hours of 6 p. m.-and 12 p. m. The Union College Radio Club of Schenectady, N. Y., recently announced, for record, development of a radio wavelength of only 3.8 meters. It was said the lowest recorded wavelength previous was 7 meters. Care of Headphones Headphones that have been in service for a year or more should be inspected by removing the "Sap and diaphragm. The mounting screws holding the horseshoe magnet In place should be tightened. Remove any dirt or particles of steel that may be collecting on pole pieces. The diaphragh should be inspected to ascertain If it has become bent and if so, it should be replaced with anew one. The screws holding the telephone cord tips should be tightened, but not removed and reversed, as this will disturb the polarity of the unit, affecting signals. If the diaphragm has become weakened and touches the pole pieces it shbuld be.turned over on its reverse side which will correct the trouble. Copper Wire Uses Use No. i 4 coper wire in a hookup when you have no bus bar. Copper wire will give as good or better results, but it is more likely to tarnish. New lows Letters The University of lowa station at lowa City is getting In line with all other self-advertisers. Its station used to be WHAA. Now it’s WSUI, the last three letters rrvpaning- state University of lowa.

heard in New Zealand and England. Mann says “Grayheads demand racy tempoti, faster and better. while youth—the young sprout —favors the slowest of syncopation. “It all depends on the age

this Invention is to provide means by which the inductance of the primary windings may be varied without the necessity of mounting contact studs upon a panel board. Vacuum spark gap (No. 1,525,356). invented by Harry Zuckerman of New york, N. Y. Some of the objects of this Invention are: to make provision for more scientifically maintaining the adjustment of spark gap; to more thoroughly provide for the installation of the device as a part of a wireless system. Remotely controlled selective system (No. 1,525,431), Invented by Thomas H. Phillips Jr., of Brooklyn, N. Y.. and assigned to Elmer A. Sperry of Brooklyn. This invention relates to the selective control of translating devices from a distance by means of a minimum number of line wires or by radiant energy. Method and apparatus for electrically operating tuning forks (No. 1,524.868), invented by Lloyd M. Knoll of Philadelphia, Pa. The principal object of this invention is to provide a simple and improved mians of securing constancy of frequency when minute time intervals of precise duration are desired for precision measurements and other purposes. Audiofrequency selective signaling system (No. 1,525,110), invented by Frederick K. Vreeland of Montclair, N. J. This invention provides for increased efficiency In apparatus adapted to the elimination of strays of sudden impulsive character. (Copyright, 1925, by Stevenson Radio Syndicate)

HURRY TO HOOK’S For Your BREMER-TULLY Parts Illinois and Illinois and Washington Washington

GOOD MULES are useful —so are GOOD COOK-STOVES! 9 Pends on what you want . Same way with radio. Some parts are good here—some there. B-T parts, for example, have their own particular places. With B-T Tuners, Air Core Transformers and Condensers you build one, two, three or four-tube sets that bring the world to your ear—and if you want to go the limit, there is the five-tube NAMELESS. For Radio Satisfaction , Don’t start another just say B-T to your dealer •et until you read fj € can tm y you “Better Tuning.” B-T never built anything hut leader* 48 pi(M of Diagram,, Hook-up* and Tuning BREMER-TULLY MFG. CO. ....ii.i.n I.—■ 532 Swath Canal Street CHICAGO

DISTRIBUTED BY RHJJSfcG)NNELL(b 33 West Ohio Street —Circle 6424 Retail . Service - Wholesale

of your joints and the lime In your bones, he says. This orchestra Is a regular Saturday evening feature on KOA’s programs, and has won many admirers during the short time that it has been on the air.

. For the Notebook When charging a battery, disconnect It from the set. A9 loop aerial does not require a ground connection. Audio amplifiers build up the volume, but not the distance. Cold waves increase the power of radio signals to more than twice their normal strength. Batteries are the source of supply* of a set. Learn to conserve them, which means low upkeep. Merely chipping the surface of a crystal will present anew surface, and give virtually anew mineral. To span great (Usances with a loop receiver, it is necessary to use from five to eight tubes or more In a radio-frenquancy hook up or with a superhetrodyne.

Hear a Maden Built Radio In Your Home Phone WEb. 3654 TOM E. MADEN & SON.

Broadcasting Log Blue Book of the Air Sixteen pages, neatly covered, contains a list of nearly 600 stations with three columns to mark dial settings. Postpaid, ,">(* Copy. Alexander & Watson 478 CENTURY HI.DO. Indianapolis