Evening Star Newspaper, May 22, 1922, Page 16

THE EVENING STAR, WASHINGTON. D. C., MONDAY, MAY 22, 1922 RADIO RALF— (Copyright, 1922, by the Metlure Newspaper Byadicate.) gt : By JACK WILSON \ Expert Advice on Radio No. 7—Functions, of Tuning Coils. RALF, T THINK A JOB IS WHAT You NEED THIS SUMMER! ED SMITH SAYS Gee' VACATION HERE A BOY IS WANTED AT 124 WALNUT AND MY RADIO AT BY A. HYATT VERRILL, then passed through the detector and ST - 50 YOU GO ASK FOR THE PLACE ! \TS BEST AND Now Expert on Radlo Technology. phones. K o TVE GOT JO LOOK Principle In Explained. v . consid: the W taxs Sitaty. conuigored Without going finto technicalities most important elements of a crystal or discussing the principles of elec- recetver set, the detector and phones, iy e third instra. | tricity it is well to explain that a and now come to the third Instru-| cyrrent of electricity passing through ment, known as a tuner or tuning|a coil of wire will produce another coil. Although a set can be made |and more powerful current in a sep- 5 arate coil or wire placed over or un- without a real tuning device and BY gorthe first, but not connected with using a simple coil of a definite size, ||, This second coll is known as the vet. in order to be eflicient, & set must | secondary. while the first is called . 5 the primary. Not only is the induc- be provided with some tuning device | the Primary. Hot only s the 00 Which is variable. than the primary, but by using such I have explained In a former article | an induction coil much finer adjust- 2 £ casaa ment or tuning is possible. for bo Why.tuning is necessary in order to | Ment or tuning s possibic for Botl cut out all vlhose sounds or messages arranged with sliders or taps. which you do not wish to receive, but | In addition, still greater and finer it is also important to know just how | variations may be secured by ar- the tuner accomplishes this. Broadly ' ranging the two coils so that’ their g v ' = M NOT GOIN' IN THERE ! | GeE PoP! I'm NoT BiG ENOUGH To BATHE A BuFFALO!! T SHOULD SAY NoT! PoP announced. “Bells of Shandon,” tenor | WGY-—Gemeral _Electric. Company,| 5 to 9 p.m.—Program of music h)‘! (360 Meters—Eantern Daylight & i (Mazhonéy-Daly); “Rhapsodie Hon- %:l:t.:m;‘:“ "n-?.” Meters— | 101 Arnesen, M. Rosendahl, Franz | Ing Time—Deduct One Hour). groise,” piano (Liszt); “My Man | Wagener, Grace Welsh and Mrs. At-|{ § p.m.—Base ball scores; concert e fox trot (Yrain); “Mello Cello,” waltz| 12:30 p.m—Stock quotutions. . |keisson. accompanied by Sallte Menkes | : et " p.m—Base ball scores; stock |and May Belle Wells (Moszkowskir el er: at Twi; | Wotations. 9 pm_News. sports. MAY DAY AT HOLY TRINITY light” (Donaldson); “Manon Lescaut.” == O e Teaturem ko pey tenor (Puccin): “Simple Aveu | KDKA — Westinghouse, Pittsburgh {announced by rafigphone. | Children of Sundey and Parochial plano (Thome): ~Susquehanna Shore” |- (360 Meters — Eastern Standsrd | : — | o L‘nfi‘l’"fimruh{sum “In the ‘x“ Time). | Wdt—Westinghouse, Newark, V. J.| School Parade With Queen 3 e Hom ve,” 'tenor (John-| 9 to 9:15 a.m.—Music. | =T 2 -| s : stone-O'Hara); “Viennese Waltz.”| 11:30 am. to noon—Music. [TRL2ES Netammasters DEVISAL Sav- | oz hundred chiifiren connected with 2 plano (Gaertner); “Toddle,” fox 2:30 p.m.—Results of all leagus| Im% Time—Deduct One Hour). e imubagy il ; (Blese - Westphal - Steiger) base ball games by innings. § am.—Agricultural reports and Foly Trini mance,” waltz (Lee Davis); “Toccat 6 p.m—Base Fall scores, theatrical | Prices as released by New York, New | neld their an piano (Prokofieff) “Persianna.” fox | features. weekly survey of business Jerseyv and federal bureaus. | relative positions may be altered. | trot (White); “Sweet Hawalilan Girl conditlons by the National Industrial] 10 a.m.—Program of music. coil is merely an exten- | This may be done by having the| children, speaking. the sion of the acrial wire, and. as 1 have | inner or secondary coll arrunged so . of Mine: (Sam A. Perry): “Romgace.” | Conference Board 11 am—Program of music. tho St John Berckman Soct : expla at the wav i 3 ved brin the Ry X . plano (Pascal). T -| 7 p.m.—Base es, ta Noy e H : e ¥s of the sanctus < el oiereriived Sepsng 1o ‘.”;‘i‘“i" sy i igure 5in Which case | ORIy may desired messages be picked and so tmportant that they will be | nounced. AR ee bR e e e s o les fz':ec:,'if'“fl;:;::n",’,';"’;f,"m:”'”‘ escorted through the various 3 extent upon the length of the aerial, | it {s commonly known as a loose up and others of different wave ml_ulr]:‘l_lls:e:l and explained in a separate — Amos, dean of women of the Univer- eather forecast; program zg 'x't:"r}';:,‘x?‘“s-'fi". large > vou may readily understand that by | coupled coil or loose-coupler. OF It |lengths tuned out by varying the : o WEM—Thomas J. Williams, Inc.,|sity of Pittsburgh: talk on “Phar- |of e =3 oL Ty Soly. Sahe 0x e varving the length of the coil you|may be mude with the secondary coll |wave lensths of the coils, but sIE- | (Tomorrow- B WinUTtDeen)) (360 Metern). macy.” by Dr. Julius A. Koch, dean of | 2 p.m—Shipping néws; program ot | JITCeRon, 0f JORE T GRU0T really vary” he wave length of the | arranged to revolve within the outer nals or waves too close to the others | 1230 pm—News Items; reports on | the Sehocl of Pharmacy of the Uni- |muste, = Col Faank. ann, as mars aeria hus, if you have a simple or primary coil. figure 4. W n Sito be tuned out in this way ay b stolen automob! " versity ol ’ittsburgh. .M, —| se | scores; program . g )¢ wire the wave lengths may be | known as a vario-couple eliminated by adjusting the inqucts | S o e At plano selections by | | 7:30 pm.—Bedtime and Uncle Wig- |of music. = B N varied by adding to or subtracting| Loose couplers are ally con-jance to record those of a certain | the Duo Art reproducing piano. Talk, { gly stories for children. 4 p.m.—Base ball scores; program |lne and played appropriate relis trom this coil | structed With one or two. sliders on | strangth and not others whieh are of| | BY RADIG TODAY Cp G Achsteter” teputs” Are marshai | '8 pm —Base ball scores. vocal selec- | of music M s Schede was the auee | g rict of Columbia. Coronation |tions by Robert Johns, George| 5 P.m.—Base ball scores: program | IS Schede was the q . This may be accomplished in any the primary for coarse tuning and a different strength | The sume results are obtained by | means of the var of the May 1 had as Miss Maria Monoghan and Miss Mi N S Mu Complete ' Programs of Radio | |man, from “Prophet” Miss Lieber-|Thomas, Miss eLna Powell - {of musie. Miss Acher, Mrs. Sanford. | anied hy Mrs b Robert Johns, 8 p.m.—Weather forecast: agricul- o-coupler, in which | 5 el e B Koty The itpin beaters the primary is made with taps. but as | Broadcasting Stations. igltfl"cern::] Shron’ Tonnhausers T |, 9:55 010 p.m—Arlington time sig- | Lural reports and prices:” shipping | e e s e e the rotating * sccondary gives finer Wagner): “Concert Etude” (Hoff- |nals news: talk on <Business and In-| ., eq Scbuurian, wille the vrin. = & adjustment than the sliding secondary | man): “Intermezzo Cavalieria” (Mas- dustrial Conditions in the United | Fiances Boiusian Wil they are preferred by many people. Naval Radio Station, Radio, Va, | CAENI): overture “Titus® (Mozart) States.” as observed by the Natlonal| , vq g, e the Variometers, on the other hand, have | % " ort | Played by Miss Acher and Miss Lieb-| { Industrial Conference Board the chil | 7 p.m—Final base ball scores:| ! children’s storfes for the St. Nicho- las Magazine am.—Meteorological report | erman; solo, George W. Powell. tenor; on 5.950 meters of arc transmitter. |& “Old Fashion Flowers,” Philander Johnson. ~ “Duo_Art” plano selection where to the occasion, an crowned the statue | the coils connected and work on a | {somewhat different principle, but as | these instruments are mainly uscd | Noon and 10 p.m.—Time signal, fol- With tube sefo. they: may b cOnBii: Dlayed by the Duo Art reproducing | am—Opening market quota-| 7:30 p.m.—Talk on “Crime and Its WL D mers, hay may e conpld | lowed by weather report and ship or- | piano, : | Chicugo Board of Trade Cure.” by Richard E. Enright. police | Mother. =~ X tor advantage: | ders. i — plgam —v(!\lt.uknl avotations at one- | commissioner of New York city. e s e =d 3 In addition ‘to all these there are | 10:30 p.m.—Naval press news, wave | 3¥N—National Radlo Institute (360 N4lf, our Intervals untll 3 p.m. 8 p.m.—Final base ball scores: lec- | g7, SCOTeLT A00 FUT o0 tlon of ihe honey-comb. colls, spider-web coils, | eneth b6 R ™ Metarn). (J:20 p.m.—Closing markct quota- t and Be Healthy.” by Mrs | ficlated at the bencdictio i ading cofls, ete., but all are similar 8 Z.000meters, 6:30 to 7 p.m.—Radio spark code. tions. . editor of the House-| 0P o ed by the of = in_ prinsiple. and operation: . The | — =t {215 pm—Ne 1d market reports. Forum. in Pictorial Review. |Was arransed by th PO spider-web coils merely differ in the | W X—Post Office Department. WPV—Signal Corpx (360 Meters). ;L‘{ mr; — \n\r»lrw n and National p.m.—Concert, under direction 1&»)70‘.511 ¥ - manner of winding. the wires being | 10 am—Weather report for the| £:50 p.m.—Instruction in radio | League base ball team line-ups: prog- | of Charles D). Isaacson . wound on discs or plates in a hori- | District of Columbia. Pennsylvania.! 8 p.m —Coneert :ff’,_“‘i"‘;'f‘l"’&" Yoy naitihousithare 6 301ip . Talkc by G Enincess Kwah | . zontal plane instead of in a spiral on | Ohio, Maryland, Virginla and West - e elr clone etka * @ cylinder. while honey-comb coils | Virginia LIRS e aids pm—News. final market and| 10:52 to 11 p.m—Arlington time GIVEN DUTY AT HUMPHREYS. . are merely colls which may be plug- 10 m-——Marketgram (fruit and i ";‘“‘““" reports signals A First Lieut. Frank E. Mon > ged out or in the circuit as desired. | VeE s) vn 1.100 meters. 1 o s0ia i —Houiehold Lints o he a :30 p.m.—News. final market and; 11:01 pm —Weather forecast | Quartermaster Corps, at Chi Loading colls are mainly used where | 1 15 and 330 pm—C W | wives music (350 metersy oo | PAAA retarne, = has been assigned to duty at ¢ y 5 pm.—Children’s bedtime story.| WBZ — Westinghoune, Springfield. | Humphreys, Va £l 4 set is designed for short or medium | marketgram telegrams on 1,980 me- 15 "um.—Weather report (485 /fl sized wave lengthe and when It is | tors i g e = o ! ) esired to recelve waves of greater| 0 D.m—Wholesale dairy report on| 11:55 am.—United States Naval O A R AL T T T one of various ways. If the cofl 1a Tith the movable secondary colt top. |length—in other words. they add to| 1164 meters by radiophone. seryatory”ime signals (380 meters). T o £ the ae o 7:30 a 8 p.m.—Ma 9 2:05 p. aters of ‘the large helix type formerly used | Rie" 3¢ oving. the secondary out | ot of the acrial circuit | "7:30 and 8 p.m—>Market report on 5 p.m.—Music (360 moters) on nearly all wireless telegraph set8| or {n'tha primary, the waves are re- | are the only the wires to the set may be snapped | quced or increaged in intensity. a crys ’ ectors and phones | 1.160 meters by radiophone 30 p.m.—Market quotations (485 | P ntial instruments for | 9:50 p.m-—Weather report meters) i ¥ b: a '3 1 receiving set, yet such sets | — 105 p.m.—Weather report (4585 off and on the turns by means of| In this way the wave lengihs are |are greatly improved by the addition| WM ubledny & Hill Electrie | MELers). metal Shrs tuned by means of the xliders andlof the instruments known as condens- | Company (360 Meters). 5 p.m.—Complete sport results and | ! ! Close Graduation Necessary. taps and the strength of the waves|crs and which are so little understood | 4:30 to 5:30 p.m.—Base ball scores o0 s 2 Soneert 360 meters)! But this permits of no fine gradua- | tuned by the varying inductance of & 3 i Exceptional Silk Dresses . Very Special, 24.75 are coming in and where these va- Thus it will easily be seen that HO(‘ Elegant Silk Crepes—Georgette, rious wave lengths are often of near- ly the same length coils capable of close graduations are necessary. The finer the adjustment of the tuner the better results you can obtain, and - for this reason devices known as lider coils, loose couplers, tapped ER cofls, vario-couplers and variometers are used. But no matter what name the coil may go by or how it may be Is a pure and whole- ructed. the aim of each and all some min s to provide a fine adjustment for clear as :n:“lwner. tuning and in every case the prin- delightfal fo2. and olples are very similar. ghtful for drinking In the slider coll tuners, figure 1, purposes. a tube or core is wound with wire over which are placed rods provided with sliding contacts bearing upon the coil. There may be one, two or more of these. and the more there are the finer the coil may.be adjust- ed. By moving the sliders back and forth any portion of the winding of the coll may be brought into use, so that the result is exactly the same as though you had a vast number of different sized coils which could be connected or disconnected at will. The tapped coil is very similar in its operation, but instead of being provided with sliding contacts, this type has the wires “tapped” at defi- nite spaces. From these points Wires are led to contacts of a multiple- point switch and thus, by moving the wi:mh arm from one point to an- o other the same results are secured o " as with the slider coil, figure 2. ~ZND$ FOOT MISERY' Both of these types are single or | 8 Cal-o-cide positively gives quick refief ¥ primary coils in_which the currents lasting results. It penetra when new 7 oF Waves pass throush the wireeot| § 5 e e the e (y':fll:: Read This Letter the coil and hence to the detector mnmnsmmmnn g Use Canton, Crepe de Chine So individual and highly fashionable = ° are these charming new afternoon = dresses that it is hard to associate them with the low price. They rep- resent all that is expensive in fashion. Accordion Pleated Loose Panels Elaborately All-over Beaded Designs Slashed or Extremely Wide Sleeves Unusual Girdles; Uneven Hem Lines Colors number delicate high shades and deeper shades, as periwinkle, They Give It Holyoke Cord i Holyoke Cord after 25,000 miles . and phones. But far better results s s Pobog Drugges are obtained by using inductance| [’ - o= Hnbaeniatan TR | 25,000 Miles on Holyoke Cords Onion Growers’ Exchange, Incorporated fn a secondary coil and which are = henna, navy and black. We specially : ‘ thn Shoes Are ::'x:h’igsf BE WY GOOUNIN e § mention a number of frocks of the r “Rebuilt“ b Ou Northampton, Mas M. ey - e é very popular color—cafe au lait. * i STy ® s = . . = = i Dear ir1 = Models Designed for Misses or It is & very great pleasure to state that the two Holyoke Cord tires which I purchased of you & year ago have given unpre- cedented satisfaction. According to my speedometer I covered something over 22,000 miles on one of these tires and between 25,000 and 26,000 miles on the other one The one that I delivered to you, after having gone 25,000 miles, seemed to be in good enough conditicn to go two or three thousand miles more. This is remarkable in view of the fact that these tires were used on a heavy limousine My "‘l‘gl mileage on other tires has not exceeded 8,000 to 10,000 miles, end if your company will only continue to make tires with such lasting qualities they can always be sure of my patronage, as evidenced by the fact that I purchased four of these tires of you a few days ago. Very respectfully, . Women igh Here is a selling that justifies b approval. Shoe Hos pital HERE'S a world of difference in their appearance, finish, comfort, flexibility, service, economy—but none in cost! Best Oak Leather Half Soles and . 5 0 Rubber Heels L . Whole Soles, Vi Rabber 50 Heels Attached . (L Putting on new wood heels, any color or height—any make of rubber heels—also “neolin” or other rubber soles—a specialty. DOWN STAIRS STORE MUSLIN UNDERTHINGS &= Eism $1 Bloomers DOWN STAIRS STORE : ] .500 Pairs Full=-Fashioned Scotch Gingham | 2 o e Hose Porch F r0¢ks $1.95 Pair 395 | We have 250 dainty and attractive dresses for morning or porch wear, styled to be becoming and practical. Many Users in Washington Can Attest . to This Extreme Mileage in Holyoke Cords New England Tire & Rubber 'Co. Factory, Sales Offices . Holyoke, Mass. 250 Wel-t 58th St., New York City Local Branch : 1127 14th St. N.W.. Washington, D.C. a Phone or bring to any of our stores The quality®of the gingham is in part respon- sible for m&ing them real values. Notice the finish, and at the same time the styles, which will surely appeal. They're easy to don and have small linen collars and cuffs and with a bit of embroidery at pockets and yoke. toh WITH ALL THE DESIRED Dark Voiles, Trimmed in Organdy FEATURES —such as full fashioned,‘dhuv¥hqualilty thread . > = 5 silk and close-fitting ankles. e color range, ~fashion others in this sale—also appropriate too, offers you angop ortunity to select the for morning hours. Sizes 16 to 46. newest shades of the gummer season. IN SIZES 8% TO 10 . DOWN STAIRS STORE Cor. 7th & K Sts. 414 9th St. “City Club Sho$” 1914-16 Pa. Ave. 1318G St. 233 Pa. Ave. SEE. ‘'DOWN ETAIRS STORB