Evening Star Newspaper, May 23, 1922, Page 24

STEAMS: 3 World-Famous Cruise on the Great Lakes Transit Corporation Palatial Steel Steamers “TIONESTA” “JUNIATA” “OCTORARA” Buffalo to Duluth and Return 2230 Miles UXURIOUS comfort, beautiful scenery and educa- tional value. Cruising Lake Erie—DetroitRiver— Lake St. Clair—Lake Huron—Straits of Mackinac— Lake Superior and numerous other bodies of water making the Great Lakes group. Passenger service ex- clusively every three days, stopping at Cleveland, De: troit. Mackinac Island. Sault Ste. Marie, Houghton. ~ sleepins om- included in fare. ORCHESTRA ANCING, Ticket -GAMES, LR 1re EXAS Galveston via Key West er Florida re- ] o > reached by Fast Throu y West e famous Freizht Service 1 ramic Overseas Railway. to All Points in 3 the sowhwess MALLORY STEAMSHIP CO. 489 Fifth Avenve Pier 36, North River . at 42nd Street New York T COMPLETE OCEAN STEAMSHIP SERVICE Reguler Semi-Weekly Sailings il largest nd other srtable and busi- € rough the great * | Southwe ma, New o, na affair i RADIO ' RALF— HEY SAMSON, WHY THE 816 STRUT? THE EVENING STAR, WASHINGTON, 1S GOIN' EXPERT ADVICE ON RADIO No. 8.—The Condenser and What It Does. BY A. HYATT VERRILL Expert on Radio Technology. Perhaps there is no portion of a radio set which is so little known or so little understood as the condenser. It is such a simple and’ inconspicuous that it attracts little attention, #8 'WHITE STAR—To Channe { . Y.—P!ymouth—Havre—Paris pool, Queenstown and the M [Exco. - Mar 3l June 38 July z:l Standard of service in keeping with the e - 14 July ug. mrbisience of Olsmibic Fiatidc il \EW YORK—HAVRE—PARIS hambean ] u largest ship, Majestic. Regular ss service. y A 3 §sopiis 10 Juiv 15 Aug. 12 16 July 20 Aug. 31 | To Antwerp, calling at June 24 July 22 Aug 48 | Plymouth and Cherbourg. Weeklysailings ne 29 Sept. 7 Oct. 11| 2 of four ships headed by the distinguished July 1 Aug. 14 Sopt 18 | 7722 @ I Lapland. —BORDEAUX AMERICAN LINE—To Hambu and Danzig. Service of re pendability, comfort and conven; ernational Mercanti Wamn B AMER[ [reservoir. As with a great many elec- 2 | trical devices, the easiest and simplest hasge from Eurove | W to explain how the condenser ioR DAt cag Tvep | works to compare it with some The Historical 21" | weil known object or principle. Per- POTOMAC RIVER RIO DE JANEIRO |haps the best way is to compare the MONTEVIDEQ jclectric circuit or set to a receptacle Route & {and the condenser to an elastic rub- | Steamer Majestic Leaves Wash. at 5 pm, Satund e R Specia ' LAMPORT LINE stio Ling derson & Son, Gen. Passenger Agts. 26 Broadway, New. York Or Any Steamship Ticke: Agents. QLLAND TO ROTTERDAM Boulogne-Sur-Mer June 3 Jul We‘ek En. Phone Main 3 TO PLYMOUTH. BOULOGNE HAMBURG American-F' *“June 17 July 22 Aug. < 24 July 20 Sept. te S, N, ¥ ‘Wuerttembe: improved t UNITED AME 39 Eroadway, RICAN LI NES, INC “CAMERONIA” uly 6th to September 6th. 7 Most attractive itineraries; cruise affords opportunities of visiting various parts of Europe: SWITZER- LAND -OBERAMMERGAT ~ITALIAN TIES, ete. Option to return via North Atlas Early application necessary. i THOS. COOK 8 SON New York CLARK'S CRUISES by Can. Fac.STEAMERS Clark’s 3rd Cruise, January 23, 1923 ROUND THE WORLD Superh SS “EMPRESS of FRAN 18451 Grase Tons. y Chart 4 MONTHS CRUISE. $1000 and up Bcluding Hotels, Foes, Drives. Guides, ete Originatcd Kound the World Cruises Clark’s 19th Cruise. Februars 3.1923 e MEDITERRANEAN Sumptuous S5 “EMPRESS of SCOTLAND® 23000 Gross Tans. Secialls Ghartered 65DAYS CRUL $600 and up Broadway Including o Fees, Dr Guides, etc. Ste: 19 days Egyot. Palestine, Spain Greece.ete fasalotemstiniAgent Europe st " on both cruises Frank ( New Y ork C ‘a0 ANCHOR tnes SUVA. AUCKLAND ” . WALk ' Connections Encircling the Globe The Weli Exy n e - YMAKT 3300, ¢ ! : Drafts and Foreign B taon ok ooty Ch Tae. Raitwaysorita Meney Orders 1419 w York W B For 1 s and Full Information Apply Cana: . o L1ing, COMPANY’'S OFFICE, B e 517 34th St. N.W. Washington | | 0 o) 3 Delta Tours "4 e « «I for our specially a few more w0 the West Coast, leaving ERMIUD Days from New Yok, 8 Days $83.01 Including Al Eapenses and upward—begisning June Cool in Su r-—No Passports e All_Sportx—Yodern Hotels FREQUENT SAILINGS Via Luxurious Stea: urs Booklet 1UDA LINE FIRST RADIO DEBATE. isteners to Decide Question “Is | Daylight-Saving Advantage”p = S— first radio debate, at which N O R ‘V A Y listening in will act as the dges. will be staged -at station [ “W.JH." otherwise known as White i at 7:45 o'clock ubject of the debate is t Daylight Saving Is North Cape and the |: F-'o‘-ds L. Kephart, representing the Sailings to NORWAY Direct] Miller Debating Society of National | Univer: Law. School, will uphold ( Junc o the affirmative at the radiophone, S. S. Bergensfjord ] duy wi -4 21 | Debating Society of the same uni- Sept. 1 = 3 v will take the negative side. . { June 30 i S Au. 1 S.S. Stavangerfjord j Aus 11 | i ESCAPES FROM REBELS. Fast Modern Twin-Screw Steamers ociated Pross, 5 = May 23.—Robert P. Superb Cabin Accommodations | Robinson, an American ofl worker, at - T Santa Lucretia, state of Vera Cruz, Cabins-de-Luxe— has escaped from o band of rebels Moderate Rates who kidnaped him Saturday, accord- ing to private advices received here. The bandits, whose leader has not identified, planned to hold Rob- son for 2,000 pesos ransom. Gen. Guadalupe Sanchez. federal commander _in that region, has been crdered to pursue the band. Close conpections for Sweden, the Continent. Norwegian America Line - 22 Whitehall St., New York Or Local Agents. Denmark and Thomas E. Rhodes of the Alvey | nd yet it is a most important part of | the set. It is much easier to under- stand th functions and operations of condenser if we think of it as a {ber bulb attached to the receptacle as |in figure 1 | You can readily understand that if | this rubber bulb began to expand or |stretch when the pressure of the i I | l 8 Aug. 12| 15 Aug. 19| 26| > il | P 'ButSh " { ’bchncr I —5-11,’.‘ =L | A Buzzer Test for the Cr;ntal De- i tector. It quite often happens with a crys- tal detector receiving circuit that the crystal needs adjusting. With a ga- lena crystal, for example, it s cus- tomary to use a fine pointed wire, | resting rather lightly on the surface {of the mineral. Not all points on the ! surface. are good ones for rectifica- | tion of very weak currents; that is, |not all points are sensitive. Tt then !becomes necessary to poke the { pointed wire at several spots on the i crvstal while signals are being re. icelved to find a sensitive one. But what is to be done when no signals are to be received? It might be de- cirable to adjust the detector for maximum sensitiveness before the ra- dio broadcast begins, so that nothing will be missed. This would seem to call for a local transmitter of ex- tremely low power, which could be {used for making the signals desired in testing. A buzzer has a vibrating spring ¥ bon A Crystal Detector Receiver. | There are crystal detector receiv- {ers galore, and a prospective, radio | broadcast listener is often very much | confused in the selection of his first {set. The one illustrated is, however. { especlally designed for radiophone re- | ception, and has some very prac- i tical features. - For example, there K lare two holes on elther side of the cabinet through which antenna. ground and headphone wires may be passed before connecting to the bind- ing posts on the panel. This allows the cover to be closed without dis connecting the wires or in any way injuring them. The cover will re- main im an upright position when opened. An instruction card is placed inside of the cover, where it may be | easlly referred to when the set is be- ing nected up and operated for the first time. ‘The mineral used in the detector is radlocite, and is quite gensitive to weak signals. The lever of the de- tector passes through a spring ball, which is set in a spring clip. Th makes a universal joint, which allo of easy manipulation of the pointed wire (cat-whisker) when adjusti the crystal for maximum sensitive- ness. It holds very firmly, so that ordinary jarring will not destroy the detector adjustment. The receiving wave-length is from obout 150 to 900 meters when used wi the verage sized single wire ants 3 [ 00OUY E% New Apparatus and Devices By Ralph Brown, Radio Engineer: liquid in the receptacle A reached the level of B, it would stretch more and more as additional liquid was poured in, and that a large part of the liquid would be contained in the bulb. In this way nearly twice as much liquid might be poured into the veceptacle as would be possible without the bulb, figure 2. Then, as the liquid is drawn off through the opening at C and the pressure on the bulb is re- leased, the rubber will begin to con- tract and force more and more of the liquid it contained Into the receptacle. s the In this way the apacity of the receptacle to it is attached, and in a somew similar manner the condens ses the capacity of the e uit and at the me time produces ady flow of current the condenser is a most important device and several kinds are in use. If you should ex- amine an ordinary, cheap fixed con- denser you would find it composed of alternate sheets of paper and tinfoil o1 mica and tinfoil with the sheets of foil completely separated, but con- nected to binding posts or terminals. This is the simplest form of con- denser, and upon the size of the tin foil sheets the capacity of the con- denser depends. The larger or more numerous the ts of foil the great- bulb increase a st In a wireless set er the conden In large sized conden s of gl and copper or other metals are used in | place uf paper or mica and foil, while in others there are merely airspaces sheets. This is the between the metu case with most v in which the p they ria condensers ates are arranged so may be moved back and forth or out and in. thus changing or apacity of the condenser condensers known as ype have a thumb-nut rew, which slides the s out and in s, Known as rotary condensers me of the plates arranged on an axis or shaft between fixed plates turned the simple aff: operates. ir of oil and paper (Copsright, ! Tomorrow fl < - (armature, which carries a contact. | When current from a battery is al- lowed to flow through the magnet coils of the buzzer this armature or vibrator moves rapidly to and fro, alternately opening and closing the buzzer circuit. At each opening a spark jumps between the vibrator contact and the fixed contact, due to the counter electromotive force of self-induction developed In the mag- net windjngs. This spark induces oscillatioMiin the receiver circuits if the buzzer is placed very closely to the receiver. The connection may be as shown in the lIllustration. "The | buzzer than acts as a miniature send- ng machine, when the push button is | pressed, and the crystal can be ad- |justed until a maximum sound is heard in the head telephomes. It will then be in its most sensitive adjust- ment. The oscillations induced in the receiver circuits are of whatever fre- quency the circuits are tuned to. There is no resonance effect between the buz- zer circuit and the receiver, so that the crystal may be adjusted regardless of the wave length the receiver is adjust- ed for. The tuning elements, except switches, switch points and knobs, are placed beneath the bakelite panel, where no dust can reach them. The cabinet is very nicely finished in ma- hogany. and the whole et is very pleasing in appearance, as well as nearly perfect mechanically as is pos- sible. | BY RADIO TODAY of Radio Broadcasting Stations. Complete Programs l NAA—Naval Radio Station, Radlo, Va. 10:30 a.m.—Meteorological report on 5,950 meters of arc transmitter. Noon and 10 p.m.—Time signal, fol- lowed by weather report and ship or- ders. X 10:30 p.m,—Naval press news, wave length 2,650 meters. WWX—Post Ofice Department. 10 am.—Weather report for the District of Columbia, Pennsylvania, Ohio, Maryland, Vjrginia and West Virginia. % A\ 10:30 a.m.—Marketgram (fruit and vegetables) on 1.100 meters. 2:15 and 3:30 p.m.—C. W. MY PoP BUY A PUP FOR Me! By means of a knob these may be | “tor of program. A8 volved. and thus alter the ¢ J8:05 p.m.—"Radio Dance.” by the | the instrument. In every . how- | Variety Club Orchestra of | ever, the principle and use of the con- | Washington, D. C. Personnel of the | denser is the same, and these is no| ¥ Dance Orches Justin Me- | difterence between the way in which {Carthy, violin. leader: Eannis Me- | the most expensive variable con-|Carthy. violin: lsadore Rosenbers, | aenser works and the in which | piano; Benjamin Broiman. saxophose: “How to Muke a Fixed Condenser.” (Copyright, 1922, by the McUlure Newspaper Syndicate.) GEE, THAT'S NOTHING: EVERYBODY's Gor A oG ! To “Medl Bohom Song Man, abama apsodie, scores anno Plantation 5 piano (Rubinstein); fox trot (Friend- Moon.” piano nced. Green) ; . base ball | WPM—Thomnx J. Williams, Inc. (360 Meters). 12:30 p.i—News items; stolen automobiles, WJH—White & Boyer Company (360 Meters). 45 pm—"A Debate by Radio.” Judges, all radio fans. Subject, “Re- solved, That daylight saving is an ad- vantage.” Affirmative, C. 1. Kephart, representing Miller Debating Society: | negative, Thomas E. Rhodes, repre- | senting Alvey Debating Society, both of the National University Law School | of Washington, D. C. This is the first | debate ever broadcasted by radio, and | all those listening in are invited to | act as the judges in this, the Inaugu- reports on ration of something that is abso- lutely new. and which promises to be- come a history-making event. Your | decision as to which side, in vour opinion, should be proclaimed winner | | will be appreciated. Please address White and Boyver Co. Washington, | ention of Theodore Hoffman, . H. Whiting. cornet; James Bri: banjo: Meyer Black, drum Fox trot, "I’ fox trot v 5 fof the § X trot, “If Youl Knew’ Echoes” waltz Again?’ fox trot, fox trot, “Those Days Are (Intermis- sion of ten minutes.) Fox trot, of India’; fox trot, “Don’t Leave Mamm waltz, “Kiss Me. fox trot, “Granuy”: fox trot. In"; waltz, “Dreamy Florida™; trot, “April Showers”: waltz, “Three O'Clock in the M 3YN—National Radio Institute (360 | Meters). | 6:30 to 7 p.m.—Radio spark code,! WPV—Signal Corps (360 Meters). 8:50 p.m.—Instruction in radio. 9 pm.—Concert. | e WWJ—Detrolt News (Eastern Stand- ard Time). | 9330 am.—Tonight's dinner household hints (360 meters). i 9:40 am.—Music (360 meters) i and 10:15 a.m.—Weather report (485 | merers). | 11 am—U. S. Naval Observa- ’lcr,\' time sign; relayed by tele- | graph (360 meters) 12:05 p.m.—Music 3330 pm—Weather meters). H 3:40 p.m.—Market quotations (360 meters). 5 pm—Complete sport world news (360 meters). 8:30 p.m.—Program of music b Harry A. Paul, Vernon Detar, W | Francis Firth., Genevieve Zimmer and the St. Francis Boys' Orchestra. i = | WGY—General ectric Compa: Schenectady, N. V. (360 Metersm Eastern Standard Time). 12:30 p.m.—Stock quotations, 6 p.m.—Base ball scores; stock quo- tations. 745 p.m.—Concert program by Ladony Opera Company. 8 p.m.—“Explanation of Timing, by A. T. Van Dyck, radio engineer. (360 meters). report. (485 results; E NOF—Naval Air Station, Anacotia | (£} Meters). 8:30 to 9:30 p.m.—Program of music ) 5 KDKA — Westinghouse, Pittsburgh | (360 Meters — Eastern Standard | Time). 9 to 9:15 a.m.—Music. 30 p.m.—Results of all ieague base ball games by inning 6 p.m.—Base ball scores features; weekly dress talk. 6:15 p.m.—Popular concert. :45 p.m.—Special news: govern- ment market report; summary of ! New York Stock Exchange; weather Teport. 11:30 @.m. to noon—Music. l theatrical ase ball scores: “Starting by John D. Stark, field secretary of the department of voca- tional guldance of Pittsburgh public schools; “Business Requirements,” by William H. Walker, business coun- elor of Pittsburgh. 30 p.m.—Bedtime and Uncle Wig- v stories for children. . _7:45 p.m.—Returns of Harry Greh- Jim Tunney boxing bout at Madison Square Garden, N. Y. i 8 p.m.—Base ball scores: program D. C., TUESDAY, MAY 23, 1922 of music, instrumental and vocal, by Edward _McFarland, Earl Truxell, | Arthur W. Becker and Joe Drem- mett. 9:55 p.m.—Arlington time signals. KYW-—Westinghouse, Chicago (380 Metern—Central _Daplight - Saving. Time—Same as Eastern Standard Time). 9:25 a.m.—Opening market quota- tions, Chicago Board of Trade. 10 a.m.—Market quotations at one- half hour {ntervals until 1 p.m. 1:20 p.m.—Closing market quota- tions. 2:15 p.m.—News and market re- ports. 3 p.m.—American and National League base ball team line-ups: progress of games every half hour thereafter until their close. 4:15 p.m.—News, final market and financial returns. 6:30 p.m.—News, final market and financial returns. > 7:15 p.m.—Children’s bedtime stor: 8 to 9 p.m.—Program of music b: the Edison Symphony Orchestra, Mor- gan L. Eastman. conductor, and Marle Giuliana, Esther Lang and Arthur Kraft. 9 p.m.—News; sports. 9:05 p.m.—Special features as an- # nounced by radiophone. WIZ—Wentinzhoune. Newark, N. J. ~BUT TM AW GWAN! GOIN' 10 HAVE ~WHAT KINT OF A RADIO P06 15 A DoG ! RADIO DoG 2 i aarel Xe 4l o = ‘:LL_D T ) /2 = 55 g S » marketgram telegrams on 1,980 me-| (360 Meters—Eastern Daylight Sav-| 4 p.m —Base ball scores; program | 7:45 ters. ing Time—Deduct One Hour). of music. Mrs. P 5 p.m.—Wholesale dairy report on{ g 5, Agricultural reports and p.m—Base ball scores; program |of Art 1,160 meters by radiophone. prices as released by New York. ity 7:30 and § p.m—Muarket report On| jensey and federal bureaus p.m.—Weather forecast: agricul- | - Lis0 metre bypradiophonc ’ 10 a.m.—Program of 1usic reports and pr shipping and Scien- 9:50 p.m.—Weather report. 11 a.m.—Program of music talk on “Business and Indus- r * Noon—Agricultural reports. weath- | trial Conditions in the United States, 2 to 11 Arlington time WMU—Doubleday & Hill Electric |er forecast: program of mu as observed- by the National Indus- Is Company (300 Meters). 1 p.m—Weather forecast, program | trial € nce Board. S S 4:30 to 5:30 p.m.—Base ball scores|of music, inal base ball scores; announced. “William Tell Overtur 2 pom.—Shipping news; pr of in the Moon,” £tories Part (Rossini); march, “Mignon. 1th _Cons: 1 farms plano * (Pauldini “Angel Child Base ball scores; pro. 3 ‘ells, of the d entirely to the cultivatior fox trot (Prince-Silver-Davis); “Oh, Insurance mpany. of butterflies and moths.« Susanna.” tenor (S. Foster); “La Gon- dola,” piano (Honsult lifornia,” t ¢ fox 'trot (Friend-Conrad): Caromna Waltz Song,” soprano (Walton-Wil- on); “Tranquillite,” piano (Mattoi Baby Are You?" re. Part 2, piano (Wagner “Lola Lo," fox trot (La <lapholtz A GingerAle that is Ginger Ale. Full of pep and ginger ~ yet fuily aged and mellow. ANHEUSER-BUSCH, INC. ST. LOUIS Anheuser-Busch Branch Wholesale Distyibutors Washington, District of Columbia e = 7 (L e ‘ou may pay more for an enclosed car, but yvou can’t get more in real automo- bile essentials than are offered in the com- pletely equipped Ford Sedan. These are sensible—not extravagant times. Buy a Ford—and SPEND the Difference. 645 ' F.O.B. DETROIT Terms if Desired Authorized Washington Ford Dealers ROBEY MOTOR COMPANY 1420 L St. N.W. DONOHOE MOTOR TOMPANY 15 Penmsylvanin Ave. UNIVERSAL AUTO COMPANY 1529-31 M St. N.W. R. L. TAYLOR COMPANY 1840 14th St. N.W. PARKWAY MOTOR COMPANY 1065-1067 Wisconsin Ave. STEUART'S GARAGE 141-151 12th St. HANDLEY MOTOR CO. (Inc.) Georgia Ave. and Quiney St NoWL TRIANGLE MOTOR CO. N. Y. Ave. at N. Capital St. HILL & TIBBITTS 301 14th St. N.W. STROBEL MOTOR COMPANY 1425 Irving St. N.W. (Ine.) All Dealers Are Equipped to Take Care of Battery and Generator Work These Dealers Can Sell Ford Cars. Tractors, Parts,'Etc., Anywhere in the United States. Reasonable Delivery on Touring Cars, Roadsters, Trucks