Evening Star Newspaper, May 21, 1922, Page 22

IG RADIO EXHIBIT . OPENS TOMORROW New York Armory. to House Greatest Commercial, Sci- entific Pageant. CAVITE RADIO STATION IS IMPORTANT LINK . IN, U. S. NAVY'S GREAT WIRELESS SYSTEM * Trans-Pacific ONLY A SECOND OF TIME NEEDED - FOR 6.000-MILE RADIO MESSAGE Comn;nnicht.ion; Between U.S. and Far- thest Philippines—Navy's High-Power Circuit Described. - | (but on different wave lengths) from the Cavite station. \ In addition to communicating di- rectly with the United States, the Ca- vite station exchanges communica- tions with the fiagship of the United States Asiatic fleet, with merchant vessels, with the temporarily occupled radio station at Viadivostok, in Sibe- ria; with the station established within the American legation com- pound at Peking, China, and with the stations at Guam and Honolulu. It ‘Js not practicable to test the cffectiveness of the Cavite station at distant points in all directions of the compass, due to tae absende of re- cefving stations: but, assumung thut the station is as effective In all direc- tions as it is to the eastward, it will cover the area within an imagmnr}" BY RADIO TODAY Complete Programs of Radio Broadcasting Stations. NAA—Naval Radie Station, Radlo, Va. 10:30 a.m.—Meteorological _report on 5,950 meters of arc tra: itter. Noon and 10 p.m.—Time signal, fol- lowed by weather report and ship or- ors. 10:30 p.m.—Naval Lress news, wave length 2,650 mcters. WWJ—Detroit News (360 Meters— Eaxtern Standard Time). | ¥ COMMANDER STANFORD C.|produced may be said to occur simul- s 2 With congratulatory air messages B y circle whose radius is 6,000 miles, oI | 2 to 4 p.m.—Organ recital by Fran- 2:om leading siatesmen and sclentists | HOOPER, U, 8. N. llneoufl:y at both stations. about onc-half of the area of the en- | cis A. MacKay, assisted by Mrs. Frank resounding through its glant ampli- | Our most distant possession, the Sl petzesMagnstic Anersy. tire globe. L. Sample, soprano from St. Paul's The electro-magnetic energy con-|, Cathedral. v York radio show—the | al and | flers, the largest pageant o6f commer fic progress ever seen in Lhis; Philippines, are separated from the United States by the vast expanse of the north Pacific ocean, a distance of tained in the wave, however, de- creases with the square of the dis- | tance from their source, and energy s Investigated Twenty Years. The Cavite station represents the results of twenty years of investiga- tion, research and experiments in 745 p.m.—Services from St. Paul's dCuhedul by Rev. Warren L. Rogers, ean. c —wili_open to % ! =) ountry—wil:_opcn t pioRcay o some 6,000 miles. also absorbed from the waves by any- | radio telegraphy in the United States. | KDKA — Weatinghouse, Plttxburgh Ine clat Regiment i Communications may be exchanged |thing in their patl which will con-| If the developments In radio tei (360 Meters—Eastern Standard Tora heck, from 1638 an ) by boat witht fnte 1 of sixty |duct electricity, such as metal struc- | phony’ during the ensuing (weniy) Time). fo sk Gomilh o ) y n un interval of SIXLY|iyres, ‘trees, ~‘etc. Therefpre very |vears are as rapid and successful, il| 39 am _ Services of the Emory — 4 m . <h H days, by cable within six minutes— | powerful transmitting stations are | is cbvious that the American deriVa-| yoihodist Episcopal Church. by Res the exposition, which ze the world's largest avail- the time required to relay through required to be effective over | long distances. | tion of the English language will W. Wofford T. Duncan. pastor. uce fo ¥ i eventually be constantly encompass- 3 Cl e S Todre. (05 af tho Hort e the intermediate cable stations at|"ne Navy's transpacific high-power |ing the globe—probabls ol for 1N | wrhi Boy Who Liong Wity ore Brom ¢ 100 o zE anu- | Honolulu, the Midway Islands and|radio circujt comprises the radio sia- | purpose of exchanging conversations '3 ;0¥ poad forett With the IS - distributors and r-Coers | 3 Jaaan, & -six- | tions at Cavite, in the Philippines; | through space, but conceivably for L _cha The exposition. which has Guam—and by radio within one-six. Y h ough space, 5 . . I Re Frunk Edwin Smith, pastor the support and co-operation of the | tieth gf & minute, or, for all prac- | (or SN0, RS, FAWE/IAn Tlands: | beoadcasting from high-power radio {Eulher Sinorial” Courcn st Fitte. newly tormed Nacional Radio Uham. tical Considerations, instantaneously. |messages are exchanged across the|'The addreswes of President Harang |PU80 o o ain The boat mail service is dependent ;Z’#L'r“."t'.z&fi :fe\'g";;)’;l'tfl llh; ‘h‘fih- and Secretary of State m;nn;‘es = €| ppiscopal Church, by Rev. E. J. Van ' e 4 N : is, the latter | peex i t mitit- | 1o J : Director E* C. Buchignani has a on weather conditions and maritime | {eition being controlled directly from | o e mome oo ety Hecently T i i ranged an elaborate proxram of dai events, ckief among which are f rures broadcasted from the armor itself, which will be sent out on fif- hazards, the cable sgrvice is depen- dent on a single thgead of insulated copper resting far down on' the ocean bed all the way from San Francisco the Navy Department in Washington. Such are the vagaries in radio com munication that while messages from | Cavite, eastbound, are daily { copied L i in Washington, were broadcasted by | radio telegraphy immediately follow- ing their delivery through to Annapo- San Diego, Honolulu, Guam and KYW—Westinghouse, Chicago (360 Meters—Central Daylight Saviags ime—Same as Eastern Standard Time). teen great antennae on the armory directly ‘at the receiving sta i, 5 roof. . fo Manila, whereas the radio service | San :‘ry.ncmo and Sun Dieko, wests |Gavite - Stations. thereby becoming fiRiadio chapel service, con s dependent only on the. ‘“e bound messages must be relayed by | E ¥ Rev. John Thompson of t . Defense Demonairation. which’ permeates all matter and all | the ‘San Diego station to Honoluty | YATI0US Kovernments and the person-! jirut Methodist Episcopal Church, o1 The Army, Navy and National Guard | space. and thence to Cavite. In fact. it is|N€! of the ships of the navits €OR-) %A Gate for Al will have exhibits, at which will be | The boat mail service, barring pos- | sometimes necessary for Honolulu to | Cérned neariy’as quickly as they besi . —_— shown by demonstrations the utili sible maritime accidents, is reliable, {again relay through the station at|came known to the public lr WJZ—Westinghouse, Newark, N. J. tion of radio telephony for defense although admittedly slow, |Guam, the distance from Guam to |United States through the press } (300 Meters — Eastern Daylight vurposes. The 6,000-mile length of copper | Cavité being only 1,388 miles, where- | e e Saving Time—Deduct One Hour). Hundreds of amateurs will dispiay homemade receiving seis in com- petitive tests for gold p.izes. The radio show Is for the purpose of showing the grest advance which View of the auxiliary 30-kilowatt transmitting apparatus of the Cavite radio sta equipmentx Installed at this n—n 300-kilowatt, 30-kilowa There are three transmitting and a S-kilowatt. thread Is quite frequently broken from one cause or another, and when cable breaks occur the cable system is placed inoperative until the copper thread is mended by a cable ship, the | as the djstance between Caviie and the California coast is in excess of | 6,000 miles. i This will give an indication of what | may be expected from high-power ra- | NAMED TO PICK JURIES. | George M. Whitwell Selected by 3 p.m.—Radio chapel service, con- ducted by Rev. D. S Hamilton of | St. Paul's Episcopal Church of Pater- the son, N. J. Sacred music by church choir of thirty voices. un the direction of John G. Cabriskie Tin Bean ade T ire At Sfice service being interrupted sneanwhile |diophone broadcasting stations as-es- | Marconi developed his reseirches. In for several days at a stretch. tablished in the future to mive service | Chief Justice McCoy. composer. p i addition to the newest devices and Radio the Only Denendence. lover a given distance in all directions| Chief Justice McCoy has appointed | 4 p.m.—"My Garden, by Louise 1 appliances to be shown by the man- bty - avail- |°fithe compass, {George M. Whitwell a member of the | Wilder st i e owr Dyiine ans During such times the only avail- | qn@ QORI o 0 cavite | GeorBe ML 4:30 p.m—Recital by Lucille Bethe manifest In the larze exiibition of | able se for exchanging rapid|giation consist of three self-rupport- ' commission having in charge Wie selec- | dramatic Soprano. prize winner of the amatesr devices. Direclor Buchig- mmunications issthe Navy's trans-|ing steel towers. each 600 feet in height, | tion of juries in the District. The oath-| 1922 music festival of Newark. Mm«, hani has set aside thousands of feet pacific high-power = radio = cireyil land so located that their centers form | of office was administered yesterday in | Severene and Mabelanna Corby will _ = which, in effect, connects the comtl- |an equilateral triangle 1000 feet on | 2 e Wnic. | be at the piano i ooE pac e e nent of Asia with that of North|ghe sides. | the s, Mr. Whit-| *5 p.m—Literary vespers, “The Be- e pace for A America for communication purposes. | Tiiese towers support the overhead | el Is assistant secretury of the Wash- | neficence of Death,” by Bdgar Whits There has been set aside an exchange | P e e K States |PATt of the antenna, nearly 600 feet | SF'N Th% n2r of Commeree and of | D apg Read a is DR e e o e the Pacific between the United States |ubove the earth. from which wires lead | Of, e, Chamber, of Commerce and of | 630 ' p.m—Resdings and secords o e roune o exnarts and a foreign power, this cable would |down to the iransmitting apparatus | \he Washington Rotars - from the’“Bubble Boo ng, their spare equipment. B e B e e “pa | In the powerhouse and thence to the | ” fhe other members of the commission | " g:45 p.m.—Sendman stories ted by leaders n | eI K U 1 more hel“ground” part of the antenna. which ,re Edward B. Eynon and J. Harry| § ‘5o cuale thme stories, “The ,* the industry will be distributed dur- severed than could the limitless at-|consists of copper wires buried about | cin ingham. 2 7 | Lstns Ren Hen” and “How the Brownte ! ing the show. A committee of lead- Shanosphece. one foot 4n the earth and radiating in s he to Bleanook,” by Bertha Jos. ing engincers and technical writors (ojhhe practical use made of radlo for |all dircetions from the powerhouse to hve Hawkias, 7 Derta Jee- eill jud ' P exhibils. elegra ic | oses an Vi and beyond th ges ' & = o - 2 will judge the amateur exhibits the pation is obvious from the fore: |onoepcyond the outer edges of the | ANTI-TRUST CASE PUT OVER. |*"750 pm. Foreign news.” by P. W e e e e R e k 5 NEW YORK, May 20—The govern- | Wilson, representative of the London Dr. Miller Reese Hutchis It chablen our government to main- | Tranumitting Equipment. ot has closed its case against the [THEE' L e Squeo .{fr‘xrsfi?ee‘rm'fl:0';1.3.:‘”<'”rme e A e N artmen: | The high-power transmitting equip- | Atlas Portland Cement Company and |concert violinist, assisted by Cario chaitman of this comm with our land forces stationed in the {(':f;\::fl"(}:;l\:eg'c.;; e oL £%07 | others in the industry accused of vio- Pascarella, planist. i, L comiaie Philippines, th Bunticate, "two unite bein Installed o |lating the Sherman anti-trust law,| 9 pm—Concert by the Orphe wdiior of the Wireless Age: H StheguL WA nia that, if mecessary. repairs can he made | SUbmitting documentary evidencs. Quartet of Newark: selections by James bach. edit ; “Wh erests with Vt'h;“l'fi o one While the other ie func. |Judge Knox fldjourn;—d u;:» lrmll uatil | Murphy, accordionist merchant marine in Pacific one o fedes e 7 - |next Wednesday, when he will rule| . == Asiatic waters engaged in world | Uoning into the antenna. and thereby | ICRL nu—d usual motions to dismiss. | WBZ— Westinghouse, S, e insurinz he continuous’ operation of [ APon the HSUEL WMOCONE 10 AEINNS | Uiage, (300 Metrrs — Eant e We speak of instantaneous com. ecciving station for Cavite is!Jury by noon Thursday. | l“‘C.i-:_’ Saving Time—Deduct One _signified their inten 3 Points. and for all practical consid- |located at Los Banos. a distunce of | 1 3% i Saillo chapsl serwices S eTing ncin (usubers lven:igus erations this is correct. travel at | venty-clght miles from ihe aran=| DIES AS TRIAL AWAITS. 8 pm—Church services ¢ B arg e Nev radio waves trave -y o C C! ing sat eer bullt by an mateur w a definite rate of Speetoihe tpecd of by the familiar teiepragh land line NEW HAVE Conn.. May 20— —_—— e shown by Mai. George Heerwagen avel of light waves, or approxi-| The actual functioning of the Cavit homas-¥. McAuiiffe of Hartford, for- AILED HAMPT! of the staff o tie Hotel Plaza, com- O O 0000 Thes mer “DEIOXL | ransmitiers Tor ‘sending essages. 5o | mer federal. prohibition enforcement| DET. T0 ON, VA. mandant of the SoRelle Cadet Bal- Therefare, they may spread out from |controlled by the operators at the Los | officer for Conmecticut, died at the| Warrant Officer Charles C. Cooper n, Whuse members will serve as their source of origin and completely | Banos station byutilizing the land te! Hospital of St. Raphael after an opera- | U. 8. A., retired, has been detailed as rs dumng the show encompass. the globe several times|zraph wires for this purpose, and mes- | tion. He was under bonds of $15,000 | assistant to the professor of military mbe.s of the Hudson Radio within one second of time. and, re- |sages are received from di: awaiting trial in the United Statesscience and tactics at Hampton N . has its headquarters at gardless of the distance separating |tions at Los Banos at the same time | court on charges of acceptng a bribe |mal and Agricultural Institute the Cos School at No. 7i any two stations, ihe manifestations | that messages are being transmitted * of $1,500 from a bootlegger. Hampton, Va. West 93d street. are expecting to enter exniblts Their president is . . - . Pk Bingham of Xo. 5348 Bromiwas; | PRy N FFNSEEEFEENEMEEEEEEEEENR an who is wise ‘raffic representative of | f— — . — —_— —— the Upper W e iu the Ameri- | ; = can Radio Reiay Lengne. ‘R : Through an execative order by Secretary of Navy Denby in Wash- ington, the first exhidition of the A, Navy's remarkable new radio com- bass receiver will be ufforded to the ¢ Yorx public at the show. This which has been credited with averiing many mishaps at sea since “ its installation, enables a ship to ascertain by radio her position, no matter how etormy the weather. The [ compass to be exhilfited at the radio show has been assembled in the New York navy yard. A squad ot troops, drilling by com- mnand of thelf officers miles iwayf will be one of v novel sights of \r / ’ the show. Officers of the staff of i AN e Gen. Robert Lae Bullard will be : LERET -\Sa”/ 7 - £ located st the Fort Wood b‘o,ud\;n‘s o cxcmen s ing station and thousands of “Tiste ers 1n” wil got first-hand informa- tion in the language of military ev- olutions VIEW, SHOWING TWO OF THE sHREE 600-FOOT TOWERS OF THE CAVITE RADIO STATION ISIET;. ‘2“{&“': S | INSTRUCTOR NEW YORK. Y.M.C.A. RADID ScHOOL ocarted -n ® tower ! the wrmor - during the week. w o ate to | Radlo Chamber of Commerce. make tie show a 8 Thro_gh the couriesy e sus. o Fos. - THE RECEIVING ANTE) pacity of a series condenser. Or both a Squad 0° Natenal Quird mes wili John- Hays Hammond, Jr., o ¢ the transmitting|® variable coil and a series dondenser —— £ — demonstratz field rxd . t Wil be ERACE RN € transmitting | may ‘be used simultaneously. In- . used this summer in iy tram- | [nventor of Apparatus Her- |antenna the function is to create|creasing the inductance of the an- d m’["‘h“fi‘” 7 “" A ] electro-magnetic and electrostatic ler:inq circuit da‘creaaes ll;( fr(-l;'\ll’ll;fl' | & o et of exnibitury e the - i d = an increases Its wave length. e- o . reads Like a “Who's Who" of the in- alded as Success. waves, which are radlated throush| reasing the inductance does just the Automobiles Have Sold | 7. Thes inciu’e amony the Gk space to one or more receiving sta-|opposite, of course. In the case of a : Ree oxhibiters, the badie Corpore | GLOUCESTER,* Mass, May 20.—A | tions. The electro-magnetic waves | series condenser an increase of con- Rigllt and Left to Families ation ef Amaervica an@ he Natlonal|comparatively simple apparatus, de-|are due to the varying magnetic field | denser capaclty decreases the fre- a es o ® EX-SENATOR TO SPEAK. Moses B Clapp to A4 Colored INSURES PRIVACY signed to prevent any station from taking radio messages except those Intended for it, has been per- fected by John Hays Hammond Jr., It was announced here today. surrounding the transmitting anten- na, and the electro-static waves are due to the varying electric fleld in the condenser, formed by the antenna and grounding system. The two so com- bine to produce the spreading out effect and the up and down or wave quency and increases the wave length of the circuit, and vice versa. But it must be remembered that if one con- denser is in series with another, the total capacity Is not the arithmetical sum of the two, but a valué smaller than the smallest capacity. The an- Miles. Sunday from All Points—Yes, Even Within a Radius of 100 k. the Last Day tenna and ground system have a cer- tain capacity (due to condenser ef- fect), an@ lhls capacity is in series with any condenser (or lumped ca- pacity) which may be put in series with antenna and ground. The total capacity of the circuit is thus de- creased when a series condenser is employed for tuning purposes. This The Invention apparently has revo- {lutionized radio communication. The new apparatus makes it pos- “ct | sible for the same wave to carry of Columbdla Branch of tfis M.t several messages simultaneously and, Associat.on for the Advanoement of | further, it is said, both voice and Colored Peopie &t the Joiun Wesley | wis may be transmitted. The ap- A. 5L E. 3 Chural i4th and Corcoran parstos also will allow a far great- streets northwest and will speak'sn | er number of stations to communicate motion. It then becomes necessary at a re- celving station to reverse the process. That is, the waves must induce a high frequency alternating current (or oscillations) in a conducting cir- cuit at the receiving station. The re- ceiving antenna proYides the neces- sary circuit. It may be quite similar BIG USED CAR SALE Cars of ihe following makes: + Oldsmobile, Reo, Chevrolet, Ford, Dodge, Buick, Overland, Church Membershiy Drive. Former Benator Mosss E. Clapp will be the guL-st today o7 the D st 9000000 ‘ From every mook and corner, cvery village, hamlet and town, the inevast of the membership driva |over a limiled number of wave|lo the transmitting antenna. All that | JSEreate of cevacitys andiconsequent bayers come to this sale, and all Liberty, Oakland, Kissel, Studebaker, Nash, Hupmobile, Essex. which has been extended to June L. |lengths. Accidental intereference|is usualiy required, however, -is a A% of waje lpnmih mayihe - The she: speaxer will be Rev. J. C. - stations ; - isingle wire considerably elevated|Pensated for by DS tuciance . oo Oldert, Tasto: o tlie Fiymouth Con | & "effclency 1n ncrenned, and at.|bove the carch and connected to |\ {1 SIS, The PRIACIRIE SAlsE, of have driven proudly back to ANY CASH OR TIME OFFER gregat.onal Church. who was presi- o o~ e ei e earth (or ecounterpoise ound) ! 2 - 2 : P . . dent of the Alabamu branch. He | diniaisbed, saste aiset . o 0° *| (Riough the receiver. The wire should | the Ware length of the antenna below their friends at home with an Satlsfactlon IN REASON WILL BUY will speak on “Life in the South \ccording to n stutement issued by | not be too long mor too short for the | that Wi 9! Withant suy & S series inductance coil. The condenser value The musical sclections will be ren- | dered by Mrs J. C. Olden. o FroBress ' (he’ drive is vers en- R R demon s ton wae “rteen | rent flowing in thia antenna cirealt it | HOTt WAYS condeneer Ml v Sn ey | from the standpoint of price days. If at the end of that time || What kind of a car do you want: couraging, oftic siated. The jarge | recens a is necesgary to tune it to'the trans- 5 4 5 z i isfi number of workers in the field nre | neoos o2Siore Oiclels and wxperts| itting antenna. That is, a condition | dielectric. and quality, and where terms you are not entirely satisfied Small car—large car—open car— repor:ing, but a full report cannot of America. Mr. Hammond |©f resonance between the two cir- closed car—touring car—roadster ? be made ur.lil the last of the month On Tuesday, under the auspices of the ciation, as speaker. Joseph L. John- son, former minister to Liberia, will be present. ’ —_— PLAN BENEFIT CONCERT. Musiclans Seek to Aid Summer Americanization Wazk, The International Orchestra and the Washington College of Music will render a concert for the benefit of summer Amcricanization school work | at Centra! High Schoul next Tuesday | at 8 p.m.. unde: fhe direction of Prof. | E. Christian:. Among those who are to take purt| are: Dunte Gallotta, George Lands- It is stated that because of the man, Morris Krulsil. Sam Dessofr, device the Navy h K operate . on a circuit of 18 ‘to 24 < & : Thotnus Midgett. Lewis Hamberger.| Senare subcommitice considering the | yolts: ~ Thes, in trade terms are|§V. Is a compact portable déor. Come to this sale and your old car in trade Julius Hamberger, Frank Felius, Ken- | netw Tduse, Herman Weibe, Hyman the requirement that the $750,000 ap- et A AR e e e § 3 2 ter one. The values in Zimmerman, David Kushner, Jacob tati de in 1916 t ire | sisnals. ‘ ! 4 Th hanic or laboring man is as wel- r . Danelian, B. Lafsky, Thomas Bell,|he’ special rights of Jonn Haye or sutotunuieas, on. Automobiles such as offered © hare as the business or professional || this great sale are amasz- Homer M Horaman. Srans camrol {Hammond, Jr. be retufned to the| PRATSE HAMMOND DEVICE.: The Audion Detector 'is 1 never apain be diglis | e BT B ealings are confidential and || ing, but if you wait— nelll, ‘A Valentine, Martin Makosh: > ' Radio_technicians who returned yes- operated on one: cell . of here wi i A0SR there’ll be no cars left Harry_Rose, Joe Dessoff and Kath- erine. Y. Cowling. CAR SCHEDULE CHANGED. cil Meeting Tuesday. . - |mond gave them a. private demonstra- | || Mile, range, broadcasting of Chevy Chase Line Goes Back ‘0| ,umira Wiiliam S. Benson, nationall e i lo Mgfl:’":u‘:w%; o Iecgg‘res, : t .:ll 3! % president of. thie National Council .of:| Dittee. including representalives of 1 scores, weather reports and 0ld Evening Hours. Catholle Men! has. eatled :“:‘Qfil‘- mgomrm:m Chamber of Cdmmerce quotations. b The Cepital Traction liae operating | meeting of the eééutive commitiee,s o No¥ YOI f £ b b N S s R betwean Chevy Chasa and Potomac Fark will be put beck on its old ‘hedule Mont sxcepl that rush- hour service will be turaished in the morning and evening to accommyodate t! overnment employes who are ‘.3 from 8 until 3:30 o'clock. An cial of the company said yes- terday that he has found many pa- trons Yving in Chevy Chase were In- y ced by having the night cars_running one hour ahead of the regular schedule. Mr. Hammond, he has been at work pa »aid that the United States Navy and War Departments have given. his bodies a direct and simple means of insuring privacy. and it will be prac- tlcally tmpossible under ordinary conditions for any other than the proper receiving station to hear any- thing but a jumble. The Treasury Department was au- thorized in 1916'to set aside an ap- proprintion of $750,000 to_acquire the patent rights of John Hays Ham mond, §-. in order to have the e: clustve use of his researches and in- ventions in the line of the .radio dynamic_copirol of torpedoes. Mili- tary authoriflés &pent a large amount of time In furthering the idea until last summer, when the chief of the coast artillery. owing to the develop- ments of bombing from airplunes, de- clded to recommend its abandonment. Army appropriation bill to strike out | CATHOLIC MEN CALLED. Slattery to Address National Coun- parish presidents and all parish’ o= 'cers of Washington, at 1314 Massa- chusetts avenue northwest, Tuesday | evening at 8 o'clock. Omne of the principal speakers will be Michael J. Slattery, national ex- ecuttve secretary of the men’'s counell, mrnu-utiu- from the Knights ‘Columbus, Ancient Order of Hiberni ans, Catholic Fraternity, Knights of St. John and members of the Holy Name- Society and Third Sunday- Bri- gade are inyjted. . s g e _~brother, living. wave lengths it is desired to receive. In order to have maximum cur- cuits must be Secured. This is dome by adjusting the frequency of the an- HARD AND SOFT TUBES. The terms “hard” and “soft,” used to_describe certain kinds of audfon tubes, are not often clearly defihed, so that many radio operators may mot know .ficta swhat ~ts’ mednt when they are:u$éd. A “hard” tube is in reality’a vacuum tube, that is, one from which: 4 great portfon of the air has been exhausted and the air within it is greatly rarified. These are known 10 the trade as am: plifying tubes and require at least ! forty-five volts in the “B" pfrcuit | for_their satisfactors operation. “SofL” tubes are not exactly vacuum tubes, but contain some gas and because known as detector tube; they are more receptive to terday from Gloucester, Mass., where they visited the laboratories of John Hays Hammond, jr.. were outspoken in_their praise_of his new device which will en- able all radic messages to b“ug:raivu. tween sender and recelver. Mr. CHICAGO. May 20.—Mollle Fullery for many years a favorite in musical ik, T s S e o Tate’ 1ifo. she. se. Biee k. llen, widow of two. years 2go. PO sometimes, therefore, called a ETECTOR TUBES. /. Terms: Firms of highest rating, 10 days ne . others, remittance wWith order. NEW.YORK ELECTRICAL CO. 1 Park Row, New York City. LANSBURGH & BROTHER ; Bring Yohr RADIO Problems to Us Do Not Be Isolated on Your Summer Vacation Aeriolav Senior wireless receiver and ‘can dry . battery, battery needed. Under -ordinary condi- * tions. will - recgive at 100 no storage automobile unequaled were mecessary we met them will go the.limit on the unsold balance. S 9000000 | No matter whether you want to pay all cash or pait cash and balance monthly, you mist be perfectly satisfied in every ‘de- tail before the car goes out the come with your buying clothes cated at anything like the prices -we have placed on them. Bring It Back Bethel Literary and Historical Associa- - v o i i 1 h! " i it i e ity ang HipEnieal Assocd laient discoveries exhaustive tests| (enna, o aYs e . Guaranteed Badiotun more than half way. We are we willi gladly | allow von every like, it is here and at less money 16 will take place with James Wel- { "oy SUCCCR8 o (o gectarea, tion of an inductance coil or the ca- for ‘immiainte delivery at $4.00 net; etk A 4 S than you will ever buy the same Friatiia i el S NE ystem, s ed, em- ~.. inleta of 100 and yp, 33.75 met. on the home stretch, and we dollar you have paid on it, to quality for again, and Sunday is YOU DECIDE Drive the car you select five apply on the purchase of any renewed car in stock. - FREE It will not take you long to learn—our competent instructor will teach you, and teach your wife, all about running and handling the car. CASH OR TIME dignified. You can select any car regard- less of price, and terms to suit your con- venience will be arranged. ANY USED CAR No matter what kind of a car you your last chance. Anyone with a salary can buy one of these_ cars—only a small cash deposit is required as first payment and the rest in convenient monthly payments. Lib- eral credit! We'll take Driving Lessons if you wish to get a bet- for you to select from.