Evening Star Newspaper, July 12, 1926, Page 26

- HOPWILOTR | T ASYSTANG oy " LONG RANGE RADIO ENTERTAINMENT : .. MONDAY, JULY 12,1926 Programs o] Dfim‘mqqna»amu for Charles A. Russell to De-| seribe Problems of Returns. Opera on Program. ST S v that arise in filling out tax returns will be described by Charles A. Russell, assistant Dis- trict tax assessor, in a speech to be broadcast tonight by station WCAP. The returns must be filed this month in the District tax assessor's office, in the District Building. The salient musical attractions #scheduled by- WCAP include the weekly concert of the Mozart String Quintet and an opera by the WEAF Grand Opera Co. The company to- night will sing “La Forza del Des- tino,” under the direction”of Cesare Sodero. 4 The opening feature will be the semi-monthly Washington Post hour. P. 8. Ridsdale, editor of Nature Mag- azine, will follow with another of his series of radio talks on .“Queer Quirks of Nature—Two More Ex- plosions.” Rosa_Pollio-Jarman, mezzo-soprano, and Elizabeth Gardner Coombs, planist, will give a joint recital at 7:30 o'clock. - Another musical attrac- tion scheduled at 7:15 is' banjo selec- tions by George McCauley. The concert of the-United States Navy Band on the Capitol plaza this afternoon will be broadcast by WRC, beginning at 5 o'clock. After the concert Mrs. Nina Reed will discuss “Things Talked Abouf LocalRadio Entertainment Monday, July 12, 1926. Probly NAA—Naval Radio_Station, Va. (4355 Meters). WRHF—Washington Radio Hospital Fund Committee (256 Meters). 11 to 12 noon—Current events for shut-ins daily. 'WMAL—Washington Radio Forum (212.6 Meters). silent. , WRC—Radio Corporation of America (468.5 Meters) 5 p.m—Concert by the ' United States Navy Band; Lieut. Charles Benter, _ bandleader, conducting; Thomas Wise, second leader, broad- cast from the Plaza of the Capitol. 5:45 p.m.—"Things Talked About,” by Mrs. Nina Reed. < Early Program Tomorrow. 1155 a.m.—Arlington time signals. 12 noon—Organ_recital, broadcast from the Homer L. Kitt studio. - 1 p.m.—Irving Boernstein's Hotel Washington Orchestra. WCAP — Chesapeake and Potomac Telephone Co. (468.5 Meters ). 7 p.m.—"Washington Post Hour.” 7 to T:15 p.m.—"“Queer Quirks of Nature—"Two More Explosions,"—by. P. S. Ridsdale, editor of Nature Magazine. . 7:15 to 7:30 p.m.—George McCauley, tenor banjoist. 7:30 to 7:56 p.m.—Joint recital by Rosa_Pollio-Jarman, mezzo soprano, | and Elizabeth Gardner Coombs, pian- ist. 7:55 to 8 p.m.~—Timely Information Regarding Your Pérsonal Tax Re- turn,” Charles A. Russell, assistant District assessor. 8 to 9 p.m.—Mozart String Quintet. 9 to 10 p.m.—Grand Opera, “La Forza del Destino,” by the WEAF Grand Opera Company, under the di- rection of Cesare Sodero, from New York City. Early Program Tomorrow. 645 to 7:45 a.m.—“Tower Health Exercises, “from Metropolitan Tower, New York City. yf AIR WAR LOOMING ON WAVE LENGTHS Chicago Station Picks WEAF Fig- ure—Others May Precipi- . tate Chaos. This week “will'tell the story’” of whether.or not chaos will result from the Department of Commerce's forced policy of laissez faire:in regard to radio broadcasting, observers believe. By the end of the week, It is thought, the department will be able to tell how many broadcasters are planning to take advantage of the situation resulting from the failure of Congress to enact radio legislation. Department officials are inclined to take an optimistic view of things, de- claring they do not think many broad- casters will take advantage of the sit- uation at the expense of the general public. Others, however, point out that the air already is so crowded that the shifting of wave lengths by a few high-powered stations would be enough to throw the entire industry into a mess. The Department of Commerce has received assurances from many of the larger broadcasting stations that they eontemplate no changes in their wave lengths. The value of these assur- ances, however, is negligible. 1t is ~ taken for granted that the big sta- tlons, which were in the field first and therefore have good wave lengths, will not change. The changes would come from other stations which are less satisfied with their wave lengths and from would-be operators who have been denied licenses. The first license ‘granted by the Department of Commerce under its new policy to_the Federation of Labor station in Chicago, which has been clamoring for an opcrating license for several months. The wave length chosen by this station may be an indication of the chaos that is in prospect for radio. Tt picked a wave length of 492 me- ters, the same as that now in use by station WEAF, New York, one of the most powerful stations in the country. WEAF for several years has been on the air every evening from 7 to 11 o'clock, the choice broadcasting hours. If the new Chicago station de- cides to use these same hours it will mean that veopie in the Eastern half of the country will be unable to listen to either. There are nearly a score of other stations believed to be ready to begin broadcasting at any time,. If they choose wave lengths already in use, as they will have.to do if they take any at all, it will mean that more stations will be in ~onflict. BOLIVIAN CABINET QUITS. LA PAZ, Bolivia, July 12 (#)~—The President yesterday accepted the resig- nation of the cabinet. He requested: the ministers, however, to continu co-bperating with him until zation of the ministry {8 com RS 2 Now ‘ 1k : musical (‘zl:‘nlllld Bn:md-n lotel Lenox Ensemble: ami Cineimati: Hotel 6 Philadelphia; P ocal - nd insteamental " s; instrels A S N Bt S apit M iew York: Question box: violinist Atlanta: Talk: g 8:30—Bostont Lido. Venies Ore 9:00—Baltimore - Agant Orchestra concert. fantic City: lanta: ansas City: Ho! it 9:30—Daliaa® Agriculture 'program. 10 TO 11 PM. Orchestra. Orchestra. 10:00—New York: Rolfe's X Philadetphia: Hotel Adeighin 0 Calico _Cat : Weather and Hartiord, Cor ‘Atlantie " Cil New York LR 5 10:15-—Chicagor s 11:00—Chicagg: New " Y Cleve antle Ct Atlantie City: 11:45—Atlanta: Concert o Geathres o Il 12:00—Chicago: Your Hour League, with and Al Cay Cihelnnati: Popular 12:45—Kansas City: xflnmfi"’muq Piantation Playe: Hotel ‘Orchesira. base ball gazaces SR RDIOR £ £ ! t S 2 o coversnna SER83, 53 g‘a'fl e S2s be & gees & 2 RETHEH T . 522 g8 g5saE Coana aid {54 oo & 85 2008 s a0 =328 B3 533823 8 § s S " H. W00, 'AG " and, e E AN B oMl R B Presidents Pat Barnes i WES ] FIFTEEN MINUTES OF RADIO EACH DAY * BY JOSEPH CALCATERRA Noted Authority on Radio . All Rights Reserved. Reproduction Prohibited. Some Facts About Audio-Frequency Transformers—Part I. It is a comparably simple matter to inspect a variable condenser, a socket, a radio-frequency transformer: or a rheostat and determine from its gen- eral appearance and workmanship the quality of the product from an electri- cal standpoint. % - -~ It is not such a simple matter, how- ever, to take an audio-frequency transformer, which is completely in- closed in a sealed metal shell, and tell anything about its .characteristics | merely by a general inspection of its external construction. It is impossible, for instance, to see the method used in winding the coil or the kind of wire used for winding; it is impossible to see what kind of iron is used in the core and the man- ner in which the.core is assembled, and it is also impossible to see whether or not the winding has been thorough- ly impregnated, Unless you have a fully ‘equipped laboratory and have money enough to spare to subject various makes of transformers to a thorough test and take them apart-to see how they are made, you must select your trans- formers on the basis of the reputation of the manufacturer. ¥ Advertising for Reference. One way of determining the reputa- tion of a manufacturer is by eonsult- ing the advertising pages of the radio section of the newspapers and maga- zines: In most cases a manufacturer who has made a good ‘product has profited by it and has been able to in- terest capital to the extent of backing large advertising campaigns and good appropriations to keep a large labora- tofy staff continually improving the product. b A manufacturer with money to spend in developing a good trans- former will usually take ‘as much pains with the general outside ap- pearance of a product as he will with the insifle workings, so, in general, outside appearancs is a good indicator of the qualty of & product. - ‘The function of a transformer change the characte: of a cur: rent such that the factors of voltage and are of the desired val- ues to prod the best results in af- fecting the control feature of the vac- uum tube and régulate the flow of the more powerful auxiliary or “B" bat- tery current in the plate circuit. The transformer does not increase or decrease the total energy which is present in ‘the primary circuit, ex- cept for the t losses that occur in the transformer. A “step-up” transformer increases the voitage of the curfonl flowing in TONIGHT. ~ Mozart. WCAP, 8 to 9 o'clock, * WBAL Concert' Orchestra, WBAL, 7 ofelock. ~ " Orchestra, “La Forza del Destino” by e V:;:-%n::d other. sta WCAP - sta- Rions, 9 to' 10 o'clock. the primary circuit but gives a propor- tional reduction in the amperage of current, so that the “wat ‘which 1s a measure of quantity of electricity and is obtained by multiplying voit- age by amperage, remains the same. The vacuum tube is a voltage op- erated device and it is therefore de- sirable that the voltage of an incom- ing signal be increased so as' to get thé maximum efficiency from the use of the tube as an amplifier. through its relay action. A The audio-transformers used in ra- dio are “step-up” transformers which increase the voltage, It would seem that the greater the step-up voltage the greater wbuld be the signal ob- tained, and that a high step-up ratio ‘would be very desirable. v The factors which limit the step-u; ratio and other items, which are con- sidered in the design .of an audio- transformer. will be described in .to- morrow’s article. TURKEY LOSING RUG . MARKETS TO GREECE | Exchange gl ‘Populations Took Nearly Half of Weavers is to| ! From Asia Minor. By the Associated Press, July and rug industry from Turkey, This is-due to the rug weavers by o) X Under the. recent exchange of pop- uiations carried out und:‘r. the aus- Bteu of the League of Nations, few, any, professional Greek or Armen- ian rug ‘were Asia Minor. - It is estimated that since the Smyrna disaster, - followed by the flight Got mm;e“ than a million - gees, Greece captured of the rug- lvull.m:‘l i "'i,‘ trolled String Quintet, | | medium, i bs, 1 L 4 C, M. & ST, P. EARNINGS. iy 13 Spclanc. _ NEW YORK, July 13 (. —Gradual g u"mirmv-rymmflmmdn., 22a24; old 18a20;| Which for years have beset the Chi. =n¢h, 28a30; old, 18a23; § , pair, | cago, Milwaukes and St. Paul Rail.| . BALT) . July 12.—Sale of $39,000 face value bonds of the Wash- ington, Baltimore and Annapolis Elec- tric, Rafiroad Friday and of $126,000 ‘on’ Saturday is causing considerable | speculation in: the financial district | CHAIRMAN d do not anticipate an in prices unless candling losses be- ;(zlu huzutmlto! ot weather, try | ‘s are sald to be exercis- ing more care in the " ON C. & 0. DIRECTORAT George T. Bishop, One of Builders of Electrio Line, Aligned With Big Nickel Plate System. Special Dispstch to The Star. / BALTIMORE, July 12.—George T. Bishop, . Cleveland, chairman of - the board of the Washington, Baltimore & lis Electric 3 been elected a director of the Chesapeake & Ohlo, thus aligning himself with the billion-dollar - Van Sweringen Njckel Plate g'mm. X Mr. Bishop has been identified with the business life of Baltimore since he qwgld his Cluv-l;:ld Imd‘rl‘:ulk !l':: on, timore napo llm'mlt it into tion fn 1908. He- was elected chalrman of the d of the local electric railway com- B TR, Do N v Baltimore, 2 J VIET OIL PRODUCTION. YORK, July 12 (#)—0il pro- NEW ; { duction fn the Soviet Union for May 5a40. 'urkeys, 85a38; broilers, 40a 45; keats, young, 90a1.00; old, 40a50. Live .stock—Calves, choice, 10a10%; medium, 9; thin, 6a7; hogs, heavy and 13%; light, cholce, 15; lamb, 30; veal, 1 k loins, Today’s market report on fruits ;:ndrk-! Ne Bervgco BIIM wl s News , Bureau of Agri- cultural Economics) says: 5 uj pplies liberal; mand modanle.B oney all ) 2.00a2.25; - South . Qfl:flb'?‘.: ltlan :ros”tu, 24s and 27s, Salmon Tints, " Lettuce—Supplies liberal: demand “Onions — Supplies ; demand slow, market dull; . ileys, overripe, medium size, Potatoes—Supplies liberal; dom ‘slow; market vd’;llll: North Cor e Melon Market Steady. ‘Watermelons—Supplies liberal; de- mand moderate;* les; Florida, beans—Supplies modérate, de- mand moderate, market dull; North * | Carolina, bushel hampers, 2. condition, 1.75. fancy, 1.00; A e ‘ ples — Su ht; aow mariket aull; Vi, ‘bsbel varieties, n medium size, 75a1.50. e Corn—Supplies moderate; demand light, market dull; Nortl cn;n. 1.00a1.50. ‘WOOL DEALERS HOLDING, BOSTON, July 12 (Special).—Dealers ol wool Tof Bigher prices, alhoush aniple ~ supplies still ‘are uum“' FLUCTUATIONS UNNOTED. broke all monthly records for postwar output, 721,796 metric -tons, against 661,008 tons in April and 589,961 tons in May, the Russian Information Bu- reau reports, drilling and deepening during the month ‘totaled 436, - X de market dull; Arizona, standards, 0 4 PETER-H-HILL MGR. SERVICE oW | If you are interested in improving the efficiency of your household work then you will find the picturés and descrip- Securities of this road seem to have Jjoined the . other local . “mystery stocks.” There have been some ex- lanations offered for their activities, &I;‘Mhln‘ authentic has been forth- Ing. ., . 2 the selling, of cou +hut it waa intimated -the closing out a block scquired some time ago. by interests which believed that the pur- chases would net them a handsome profit. Instead the bonds have been sold at a loss, it is sald. Practically all the buying today and other days 'week of Wi Baltimore has no significance other than the throwing- over of the big’ block “of bonds by ’interests which found it unprofitable to hold longer. For. more than a year both the com- mon and preferred stocks have been under accumulation, holding usually steady as to price, the common hardly varying from 8 and the preferred seldom leaving its mark of 22. There the part of some interest or interests to_give these prices, but all efforts to make the bidders “reach” for the stocks have been unavailing. Now, it would séem, the bonds also the market same time. Not a ofwatertoliftorwrrydmp‘ Wells in process of | c] Or See This Machine ip Our Sales Department Washington Gas Light Co. 419 10th St. N.W. Phone Main 8280 : Georgetown Branch / ‘Wisconsin and Dumbarton Aves. IRONER a quickér easier way Yo wash and dry clothes tions below intensely interesting. They - tell a few of the important things the amazing new Easy Washer offers you.