Evening Star Newspaper, July 19, 1922, Page 20

BY JACK WILSON. Copyrieht, 1922, by The MaClare Newspaper $rnéicate. —=BUT IT5 NATURAL WITH M, & | TGUESS — MY NAME 1S Broadcasting - Stations. s NAA—Naval Radie Station, Radio, Va. 3:45'to ' § a.m.-~Live stock receipts; ASSGNING RADID CALLS B PZE| S | 10 5,000 Stations Baffling g::; 5-:. ’;" Yorle c‘:?n"}'éfi"& Problem for Commerce De- | Guoriia: Fiorida. "A1abema. Missis: VR inia s Onie on 3950 meters ne o on 2! met i partment Inspector. L1 m—Meterological report on Wl;n.lo'l. H flash- to 11:20 a.m.—Ho ash— Chicago and St. Louls. . N FOR NAVY, W FOR ARMY | S350 25 eruie an ves- Noog—Time signal; weather report and #hip orders on 2,650 meters. 1:40 to p.m.—Frult -and vege- table- markets. 5 to 4 p.m.—Closing live stock markets. 4 to 4:15 kets. B p.m.—Weather report. 5:30 to 6 pm.—Dally marketgram. 10 p.m.—~Timi ather pert; ship ord 10:30. p.m.—Naval 2,650 meters. Exce| noted, sending is CW K0P, WET, KEG Among 0dd Combinations—One Ship Has KKK, Another IWW. Assigning radio calls is something of a trick and, with the constant in- crease of stations, it is in the way of becoming an art. In this country e have but three initial letter calls for about 5,000 official and commer- cial stations, which makes the desig- nation of appropriate calls almost im- Having only the letters N, p.m.—Hay and feed mar- mea by innings. —Weekly summary of the “Careful Crossing Cam- paign, dress by F. H. beock ; letter from “Farm and Hom pt where 5,950 meters. ‘WYX—Post Office Department. 10 a.m.—Weather report. for the New Apparatus and Devicgs RADIO, EXPLAINED) | possible S Bistrict of Columbia, Pennsylvania, K and W to start a word w.;"h :":;: 3x,m. Maryland, Virginia. and West 2 ; champion word-makers, who pd‘ lrxlzlm > . Sy e . I By Ralph B Radio Engi Thousands of words out of tra oMackaigram Cowe and lreport 1 e INSTRUCTOR NEW:YORK. Y.M.C.A. RADIO ScHOOL y Ralph Brown, Radio Engineers— | 0- , .—“Mor rs- for 3 2 names. would be stumped In (76 B A 3 m.—CW | the Women In the Home," by Mis &S A RECTIFIER TURE WITH NO emission from a heated filament, but rather upon gaseous conduction be- tween two elcctrodes. The tube will not pass more than fifty milliumperes for any length of time without over- heating, but two or more may be connected in parallel to pass the de- sired amount of current. The ‘tubes will rectify alternating current rang- ing from 300 1o 750 volts. If higher voltages are to be rectified the proper number of tubes may be connected in series. Overloading of the tubes will cause excessive heating and the recti- fying properties will be lost to a greater or lesser extent. The life of the tube has not been determined a8 yet, but depends upon the ability it has to stand the effects of heating and cooling. The manufacturers con- servatively rate it at 3,000 hours. While these tubes may be used for storage battery charging on alternat- ing current circuits, probably their best value is in rectifying aiternat- ing current for use with vacuum tube transmitters. It will rectify cyrrents of any frequency :30 pector of the grams on 1,980 me- Sigourney J. Frush k 7.30 p.m.—Bedtime stories for chil- _Pm.—Wholeeale dalry. report on|dren 1,160 meters by radiophoné.” : by Miss Helen 1Ji30 and § pm.—Market report on|Denny, sopranc: Miss Mary I. Denny .150 meters by radiophone. accompanist: Elmer C. Willlam F. H " 10 p.m.—Arlington sition of chief radio ins Pepartment of Commerce. v instances he has done well All calls starting Iy &"“‘e naval, which is very l:p'::e priate, and the Army calls comiCre with W. which is snmewha‘l"slln i cant as referring to the ‘;.r —ts partment. The rest of the W o D b heedlessly assigned to the easters United States. leaving t. The definite §eo- (W. Va.) went . while to a naval on at Savannah, Ga.. he gay e ters NEV (Nev.), which ""c‘.‘l? + have suited a station in Carson far better. (Gounod alln: 3 violin solo, Mr.| tions. ome Appropriate Cxlls = | Lieberman, “Homeless": clarinet solo.| 215 pm.—News and market re- When the inspector got down 10| C. Brinkler, solo clarinetist of the |ports. pecific stations. howevere 18 [ pe | X Liebe 3 pm—American and National better: what could be H\OI': Detroit ‘Moon River”; J. R. Archer, baritone, | League base ball team line-up: TOg:- than the call assigned to the accompanied by Miss Esther ress of games every half hour there: (Squires); | after until clos 4: —unmistak- ot i e A rtment, KOP—unmistak-|say. “Old Fashioned Pal” :;lle‘a Tn view of the recent &sser- | [jeberman's Orchestra, “The French p.m—News, market and atock he Dl b Adolphus Busch. some of the | Trot™; J. R._Archer, baritone, accom- Shinving Hoard's calls seem quite | yanied by Miss Eather Ramsay. T fute. The craft known a8 the | the Road to M reports. West Gotomska carries the {llnd closing announcements. ! Base ball repo chil- fant call WET. while the Rio Grance {dren’s bedtime story e call of K et NOF—Naval Station, Anacestia & to 8 pm.—Program of mus o the same miEnA . - (412 Metern). i News and sports. spells it KEGG. while the W es B .—Special features as an- Jand makes it plural. KEGS, ¥ radiophone. - t A two electric vacuum tube is often used as a rectifier for storage bat- tery charging from an alternating current source. The advantage of a rectifier tube without a filament may be at once recognized. At least, the tube cannot burn out through failure of the filament. The tube illustrated does not depend upon the electron potential (positive or negative) found which gives a certain plate current. Or, if a point is located on the line AC for u certain grid potential, tric- { Ing this point upward along a vertical line to Its intersection with the characteristic curve, and then over to the line AB, along a line parallel with AC, the corresponding value of plate current will be found. The characteristic curve and its reference lines give a picture of the change of plate current with changes of grid potent! for any given tube when plate potential and fillament current (which controls temperature) remains the same. It is to be noted that no two tubes will very likely have the same characteristics under the same conditlons of plal potential and filament current. Also, that if either filament current or plate potential are changed a new characteristic result when one particular 7 | tub dered. These matters | | will be considered i THE CHARACTERISTIC CURVE, In previous articles it has been pointed out that the pptentials ap- plied to the grid of a three elec- trode vacuum tube can be made to the electric current flowing in the plate circuit. It has also been shown that given variations of potential have a greatér effect upon the plate current when ap plied to the grid than when applied to the plate of the tube. Suppo that a battery were connected b tween the grid mnd the negative terminal of the filament in such & manner that a positive potential applied to the grid. posit! battery terminal would have to connected to the grid and ative battery to the negative filament terminal in this dase. - Then suppose that & In some :530 p.m.—Weather report. loncello: ennig, jr., ac- WEAS—The Hecht Co. (360 Meters). 55 time | control 3 to 4 p.m.—Music, retail news and | Signals. reports. 7 to 8 pm.—Radio vaudeville pro- ed by Ted Les: as -for tuning in— leberman’s Orcheatra, “Stumblin ‘Californi R. Archer, baritone, Miss Esther Ram- ven Bravest Heart,” from KYW—Westinghouse, Chicaxo (360 Meters—Eastern Standard Time). 9:25 a.m.—Opening market quota- tions. . 10 a.m—Market quotations, and every half hour thereafter until'1 p.m. 1:20 pm.—Closing market quota- NEW RADIO STATIONS. The opening of the new Signal Corps radio stations at Fort Benning, Ga., and Fort Totten, N. Y. brings its total stations to ffty-three, and with tRe co-operation of the naval station at Boston. one more point is reached. new station planned for Fort 8ill, Okla., will hook_ the 8th Corps Area into the Army radio net, which will then e Lrace practically the whole country ‘The tube may be mounted in ar ordinary Edison base socket or re ceptacle, such 48 is used for accon modating the ordinary electric lan It is thus very conveniant to use terminal final market, finan- orchestra | from the United Marine Band under “direction of Taylor Branson. second leader. The program follows March, irest of the Fair” ( nounced A he liquorishly, Great Britain ll\lpl(a:flv':'\sol :l‘ 1 in the anll—pl‘(’l\lh“e Fon “signai_ GIN; and also, since 8 has V_with several other \elterl, “fl' . The call 'VOP—significant of & very fine brand in the old days. Russia, with the letter R, of course. has rum and tye % T A e e resKORK, which some to radio p experts insisc Dbelongs t Treland—bu WWJ—The Detreit News 360 Meters). 9:30 a.m.—"“Tonight's Dinner” and a special talk by the woma editor. 0 a.m.—Physical culture drill by Calling Me” (Marshall), Musicla Clar! “Humoresque’ ‘Serenade, Op : No. 3. ings” (Volkman); “Obligato for Saetior:” aislody mCR Mol Y & ody in o that one Bas A eigner o (Buwes): solo for violin, “Oriontate finms The chief call assigner of GFs (Ceaser Cul), Musician Herman R, =0 : ey "t:nr:n to Hoffman; two numbers for strings B . ::fn'm}f; A ssuin é‘::fig'il:)i‘ ((;)) m?"i‘i'o.&f'i% unusll_ll ‘British ‘illu; are No. ;‘Dhlo ek oL .J[ s Opua 13 Tode sy Trujy (Tacobs-Bond), Masician John e A. Brickiey; march, “Thomas leffer- Other Unusual OCalls. foidey; march, “Thomas loffer- The station made famous by Radio | "Halls of Montezuma’; -“The. Star Rt has been Identified as the United | Spangled Banner. ! States destroyer Parker, bearing the 1l NIX. The Nav n % Sareat Britain ) rea : ; YES Al e Danah instead of French | 12 noon.—Chimes showing that other radio inspectors g0 Chur;:)h_ wrong. by ‘Southern Pacific passenger ship bR he title of a famous southern fraternity, KKK, and an Italian co- »temporary goes it one better with the| well known call, IW n g0 + The new Goodyear Cross-Rib Tread Cord 43165 UDLI0ILINSLTIN “Nogdive - Vaes-Tositive GRID Vou 37 ™ voltmeter is connected directly across the grid battery, and a very low ireading ammeter (milliammeter) & merican Radlo and Research|resding in thousandth parts of an i (Beo [ o ireatien, Medtérd muiside, | jampere I connected in the plate eir-} 3 | (300 Meters—Eantern Daylight-Sav-|cuit in series with the plate batte = ing Time—Deduct One Hour). plate and negative filament terminal. § Epiphany (1 am.—Official weather forecast|If the voltage of each cell of grid | # A - or New England. attery is one volt the potential ap- i .m.—News items; reports.on 2 .m.—Music. plied to the grid can be varied in stolen automobiles. 3 p.m—Current events. { one-volt steps. It will be convenient 3 Music and talks. | to have a chart which shows the plate 55 p.m.—“Enjoy Your Garden All |current, in milliamperes, for each Winter,”. William R. Cole, specialist{volt changq in grid potential from in horticultural manufactures, Massa- « yp.to, why, tem volts. .Th& values of grid voits may be Iaid of 0 p.m.—The Detroit News Orches- the Town Criar; Lillian Brady, soprano, and Eugene Beckhold, barl ‘Heart o' Mine"; Milton Francls, The soprano: of SYN—National Radio Institute (360 Meters). 6:30 to 7 p.m.—Radig apark-coede. one e I e — -~ parece Asricultural College, Am={ 7R, St So right along Ahe lin whieh ar froi — -~ < erst. alon, —3 o ¢ e JAP and th WHMU-—Doubleday-Hill Electrie Com~ AC in the drawing. g‘hl values i - |m,ch un,fil' mp actu- » }:b:';:a“i‘ma".‘ A French radio sta- - pany (360 Meters). of plate current in. m‘lllhmlurll may Hmuab%m.ndvtlon_g'wm' 0 4% . l." tlon carries the des! be 1ald off from point A upwara along ing new tire built to satisfy the .ally measuring nearly 5 inches. the line AB.. Other lin drawn parallel to the two lines mentioned and through points 16cated upon those lines will intersect at right mngles since the two original lines are at right angles with each other. Where any two lines cross, a point may be located, which will give a graph- ical record of the platé current noted 4:30 to 5:30 p. announced, and am of music: Baritene (Mound.! Caprice,” piano te Puteh Garden” (Marks), “May, the den” (Carpenter), “Voi ote” (Mosart). p.m.—Rosette Le Page, reader ?" fox trot (Friedland): soloist. Group of songs, words > contralto_(Bizet); “The Sun-land music by Mrs. Le Page, “A Bo: Your Smile,” plano (Ray):|quet.” ‘God-made,” “Meditation fox trot (Al Jolso: Bud'r ading, “Aux Italienne” (Meredith); “Chiffonnette,” piano (Al-!sdblos. “A Favorite Spot” (Mendels- D O I tinE oty ey e s ie it i) e noled| s i : : “Loye's E = wa)s ium points have been located ajong | “MY | WBZ — W thé two reference lines AC ‘and | \ruti“nz O Rt AB in such a way that a vertical | (piano certaln_ point on AC | | 7:30 p.m—Bedtime stories for chil- |u point on AB and dr'y?';-:i’u:;r?fi;: line AC. The intersectiori .of the two lines is a point. By locating a point _on AC for each one-volt change of positive grid potential and 2 point upon AB for each correspond WGR—Federal Telephone and Tele- | iNE value of plate current and draw- iress graph Cempany, ffale, N. Y.|m8& the additional lin mentioned Sccldents;| (Western Daylight-Saving Time— | 2bOve various points will be found | Dedmet One Hour). Jhich are inteesections of the lines. Noon—Weather and market reports S e (R L T o B “'_*.“h" - Kot ro- | SOLeNLIRIS are applisa to the STia. 3 b Ba produce new points, which & u? Tors "0 ‘whiel re inter- o dme sections of “additionial lines vertical 316 pm.—Concert by Federel Tele- té AC and parallel to .AC. If the phone and Telegraph Company (360 meters). g Like the All.-Weather Tread ] Cord, its foundation is genuine -high-grade long-staple cotton. Like the All-Weather Tread Cord, it embodies the efficient group-ply construction, 2 Good- year patent. H Like the All-Weather Tread Cord, it is the product of an experienced company which has a world-wide reputation to safeguard. Look at the prices of the new Goodyear Cross-Rib Tread Cord, listed below. are asked to pay for “long-discount” tires of unknown reputation and value. Like the All.- Weather Tread Cord it isliber- Why take a chance on such tires?—you ally oversize in all straight-side sizes,the know it doesn’t pay. Compare these prices with NET prices you are asked 1o pay. for “long discount” tires x4 SeraightSide$23.50 34x4. SuwightSide§27.35 - 4x4}4StraightSide$32.95 1 English sub ,ybu.:-' Gaby, 'ormer] el o‘\’l tly denotes one ‘French operator, and o ur{’for!unn o agascan station g0 A uggm‘a ‘American naval stations have calls which spell the names of their aweethearts, NAN and NEL, while an- other ship has the sentimental call KISS. Radio broadcasters have a per- fect right to kick when assigned such calls as WEAK and WEEP, yet two wafter under those titles despite good ervice, showing the failings of the tadio inspector, who made another “mistake when he gave the significant cal AR to a newspaper instead of to John Wanamaker, Gimbel Bros. Zor Strawbridge & Clothier. whose Cedlls fail to identify their businesses. LURE OF RADIOPHONE - ATTRACTS MANY FRENCH 4 Hven Cafes Soon to Be Bquipped - Where, for Small Charge, Any ~-One May Hear News and Music. By Cadle to The Star 4 PARIS, France, July 19.—To the list of functions performed by the cafe in the daily life of Paris will soon be ded that of serving as a public au-; hals ILAD. Another I on i °f .I It is designed especially for the man who wants the essential advantages of cord tire perform- ance at the lowest possible price. ‘It is designed to offer the buyer a quality product at a price even lower than he has formerly paid for a“long discount” tire. Ithas a different tread from the famous year All- Weather Tread Cord“—k: new tread ‘:ldd:; a elean-cut, cog-like pattern—: ts m'dlhu price-ranges from 20 to 25% less. This new tire is the- Goodyear Cross-Rib Tread Cord. : Springfiel Mass. (60 Meters—Eastern Stand- ), {line from a (Meyer): 1 will intersect a iSehuatt): “Romany Zamechnik); “Sweet Indiana Home’ | (Walter Donaldson); “Concert Etude,” |dren. piano (Liszt). Lave” p.m.—Lecture, weather reports. 8 to 9 p.m.—Program of musie. market and WJH—White & Boyer Company (300 Meters). . 4 to suggestions for h first ald instruction r program of mueie 30 p.m.—Summertime r::zo § o WIB—W Newark, N. J. 300 Metors — Bastera t- ‘m Time—Deduét One Hour). m—-Atrlaltw réperts and by New points Brée then conmhected by a smooth line it will be found that this line is not straight at all points. but is curved in some .places and straight in others. The line or curve thus drawn is the characteristic curve of the particular tabe" in- vestigated with a certain fited plate potential and filament temperature. of musiec. 10 s.m.—Program 6t music; Duo- Art recital. Neon—Agricultural report: er forecast; program of music; Art recital. g 1215 to 1 p.m.—Standard time. sig- from Arlington. p.m.—Program of music. WGY — Gesieral Eléctric Company, Sehenectady, N. Y. Eastern Standard Time). 10:30 a.m.—Early stock market quo- tations. 30x 334 Clincher. . ..$13.50 dience hall, where wireless telephone | am of music. A = | 7 p.m.—Produce and stock market| Any point chosen at random alo; . 5 = 2 B . metitges iy be heard | A dociety | 3 P —peogram St music. | auelations: hase bah resultsl mewa | (he ine can hevererred 1o the base | 0x 354 Straight Side $15.85 M2x4 StraightSide$25.45 32434 SemaightSide $31.45 3355 Straight Side $39.10 “purpose of broadeasting several times | fasion news: program of music [ullsias e S Al 0234 StraichtSide $19.75 33x4 StraightSide$26.80 33x434 Seraight Side $32.15 35x5 Straight Side $41.05 ‘ H B These prices include manufacturer’s excise tax Goodyear Cross-Rib Tread Cord Tires are also made in 6, 7 end 8 inch sizes for trucks FOR SALE BY - a day a complete bulletin of world Tn- p.m.—Base ball scores; program formation, particularly items dear to|of musie. the average Frenchman, such as the!° g pm_ “Review of thé Iron and résults of the races, the stock quota- Their Relation tions from the bourse, concerts and the news of the political world. The service will begin as soon as it has n authorized by the-French postal authorities. 5 “ It is said that in and near Paris WSB—Atlanta Journal. Atlamta, Ga. (360 Meters—Central Standard Time —Deduct One Hour), 12 noon—Weather report and sum- mary for cotton states. 2 p.m.—Closing market quota- tions and government réports; con- cert of vocal and instrumental music. 4 p.m.—Concert by Howard Theater Or‘chut:l. Rasa. bal to 6 p.m—Basé ball séores: I news flashes; daily bedtime - musical seléctions. 10:45 to 11:30 p.m.—Speelal 1ats con- the Iron Age; cultural n.or";‘. program T pm. a1 Stoi ence Bmith ‘Tel T by Flor- cant of the New York finkl - base, ball, sesres; e e e e ey e : - e o ur Inatalled thet will a0on | s o) Bea SR L Akron Auto Supply Co. Mid-Washington Service'Co. Hendrick Meter Co., Inc. pt. inoh.. 3 hive the privilege of Visiting & cafe|” g pm-~Concett By J.'C. Lyons, - 52 Seventh St. N.W. Main 499 Tires, Tubies, pcoeaporics 21 Carroll Ave, Takoma Park and for a small fed listening to radio = T A A Mechanical Rubber Goods Columbia 10182 messages as they would to a phono- "9 p.m.—Céncert by Prank Eiummit) 3 . s s Auto Supply 1602 14th St. N.W. North 366 D Understosa that at § o'cleck |§ f:::nn'&"(-‘ Pl i SR E 3 01 14th St. NW. <Col. 7236 Mt V. E. M. Shreve s oot T mmmint g e Use “Murco” Liquid Paint 0 Sherman v, K96 Ry i oS Ve Denefit of American toutists AR ':"}.:', o 33 se Ill'co qm alllt Bockhultz Auto Supply Co. - Franklin 7192 ?m %m‘:&mfi;} Ear e xm(fi-vmu Iufi.aflzf i T 7 Foufteenth Strect at V ' 5 . e ir s oL Cambriake University | o Theey —for indoors or outdoors— = maean, N I Model Tire & Batteey Shop Sixth Street Tire Shop this year, is the daughter of the cash- g 1 - %" : = 1817 Nichols Ave. S.E. 216 Sxth Street N.W. fer’ at e Salvation Army Bank in n exposed places, or places— A obtand Carage . Anacostia Lincoin 50 P —where the wear is considerable— 1000 Michigan Ave. N.E. Moore’s Auto Supply Crosstown Auto Supply Co. ’ s North 1021 “Moore Personal Service” Jas. E. Al i . Alexander, Prop. ¢ 20th and K Sts. N.W. Because it. will meet every -reqiiire- Eureka. Aute S Co. 1801 Fourteenth St. N.W. | i 5 ment, and outlast all expectations. ot v g B Man e North 3728 ' Don’t Class_ : A ‘Franklin 75 Pennsylvania Ave. Garage Richter & Miller | G. & G. Ginger Ale ¢~ All Paifit is nét alike—ahd Mureo has . 3 . H.. W, Higham, Jr. L P i g dax. Ol Tires Asecurevice as upopn . * been caféfully formularized—compounded ¥ 5 BoSE, Lincoln 647 5 "ml“ NW. g ; of the purest ingredients—lead, turpen- ot Seaton ; —because it 13 different from tine, linseed oil, JApan drier—86 scién- Ants Bros . 45 Seaton PL NE. | 1999 . ?m Avto the erdinary brand. tifically that it goes farthest in gquan- 1ay NOS Supelies W 306 R. I. Ave. NW. North 379 o 4 G. & G. is carefully ¢of- Honey Cortb Cofls for tity, 166ks best ifi-éffect, and lasts longest. Main500 John P. E: George W. Evans D h BN at Caliteriia podngel P“gg‘ TSl Asmstong’s Super Cireuit For whiéh reason it is called the “Life- s MecCardy Bros. - g vans Bros. ' ¥ ‘Netth 68 ©° so certifies)—and with a 3 (K long Paint.” & ' Auto Accessofies and Repairs A e Autometive Supply - sparkle that is wholesome and $2a o 3730.Ga. Ave. \5, Telopio of ¢ 2ist St. and Pa. Ave. N.W, g reireshlng. W All réquired quasitities; . & Col. 579 S Gas Filling Station mvmfl"& Polahed. . West 594 You won et the samé = £ ¢ B satisfaction it any other in all wanted cblors: 3 A < 5 Ginger Ale. ] % é So it's importasit to femém- o bér to order G. & G. - % Phone us, Main 7637 for a i | case to be deliveréd to your ' home. g " G. & G. Bottling Co., ' 931 C Strest N\W. ). Murphy W,