Evening Star Newspaper, May 3, 1925, Page 41

LONG RADIO PAVES WAY FOR POLAR FLIGHT Most Northerly of World’s| Weather Bureaus to Aid Norse Expedition. BY JAMES B. WHARTON. 1 Correspondent The the North | merican Newsp: KINGS Bay, Spi The science of first time in i attention to Polar forecasting Since the middle of April a & network of radio waves has by n motion solely the benetit the Norwegian Aero Club North Pole flight expedition, of which Capt. Roald | Amundsen, discoverer of the South Pole, is the head. These waves, bear ing hundreds and hundreds of tem peratures, wind velocities and baro- metric pressures, will continue until Programs of Distant Stations 45—Mooseheart, il 00—New York: Children's hour: comic N. ¥ Anni Rossville New Yorik W, Chimes Mooseheart, 111 45—Philadelphia: Holy from Grace C Trinity and 00—New te ingfiell Pittshurgh Omaha gy the as turned its hy | ervices “al Ci <or h services ranti 1 0 s for “sic San Fran Detroit Contr program e Presentation of the St. Paul's Episcopal C: 12:00—Atlanta: First Presbsterian Chureh the two airplanes, bearing six men hop off for a 600-mile non-stop dash for the pole, some time this month Almort one-half of the face is covered by this colossal spider Weather reports are taken from countless, points down as far as the thirtieth latitude, North. All these observations center up here upon the tiny Norwegian naval transport. the “Farm. The wireless station which established aboard the “Farr its up here is power weather ear spec was before enough ports from as gen, United State Bureau station at Annaj ere we get it here. neteorological fon her nost northerly Weather Jnreon that has ever existed. Until now the tation nearest the Pole was Geophysical Institute of Tromso. northern Norway, which lies on 70th Latitude, North This -statior directed by Dr. O. Krognes: the Polar exposition's base meterological depot. Its advance here is handled by Jack \ Nor- wegian, and Calwagen Swede, both drawn from the Nor- wegian government's station at Ber- gen, Norway Peril in Atmosphere. e work of these two meterolo. gists is considered about equal in vital fmportance wit the work of the| moto mechanics who will put the plane enzines In perfect shape for Polar flight 5 of the dash for the Pole, as well as the lives men, han these tw the one d th { most intang afrplanes and the atmosphere. | So far as human certainty goes the engines of the two planes will be certain to function properly. The airplane is no longer in an experi- mental stage. Its operation is virtu- v as certain as the driving of an tomobile, the running of a locomo- ive or the sailing of a steamship Svery one who has anything te do with the coming T realizes that the motors aren’t like 10 cause any trouble or danger. The greatest peril lfes in the atmosphere. If the North Pole isn't reached and six b men lose their lives, it will »bably be by the hand of Nature. Work Against Odds - task neteorologists | dangers. They are their Spience enabl th are working odds.” Weather fore- | is uncerta and fore Arctic is even worse | ck of available data. | figures which have | arrived at, and which are of | g interest: Mean temperature r Spitzbergen in April, 5 above zero | nheit: for tzbergen in May, | zero Fahrenheit; North Pole. April, 18 below zero Fahrenheit; North Pole, May, 10 above zero Fahrenheit; h Pole, July, above zero hrenheit The figure for the May temperature observations made by orwegian explorer, du age of the Fram. scarcely credible that it no more than barely freez- ing at the Pole in Midsummer. Yet, if these statistics are correct, it is so. Spring approaches the Arctic rapidly | and, suddenly, as can easily be seen when the mean temperatures given for Spitzbergen and the Pole for the month of April are compared with those for the month of May. At Spitzbergen, the temperature is al ways very variable. When the wind comes from off the open water to the south, east or west it is reasonably mild. When it comes from off the ice | pack to the north it is bitterly cold. How it blows at the 'ole no man kno Bjerknes and to the is the he succ s upe le the ¥ to ¢ doing all _that them to do, but against serious asting, at best for the of the I are a few hese Below n above 0 should seems Calwagen say that| meteorological data of the utmost ificance for the entire world may be gained from the work they are do- ing up here. Despite the vivid drama of an aerial dash for the Pole, it is more than a mere d ng game. In more ways than one it has its valu. able sclentific phases. It is one of the ways civilization chooses to pro = c pyright, 19 adi. South Am American New sig: ted St and Japan Alliance n Germany by by Petit Parisie Ha Sera: in Norwegian by *'No; in_England Tllstein v ne: in Ttaly | Scandinavian Aero Club. Al by Corriere « countries by the nights reserved.) Local Radio Entertainment Sunday, May 3, 1925. NAA—Naval Radio Station, Radio,Va. (4345 Meters). 0:05 a.m. and 10:05 p.m.—Weather reports. | Meters). I's Bible class, by Mrs. Irving Ketchum. | 11 _a.m.—Morning service; sermon by Rev. Charles Wood. on “Fixed Points in the Soul's Sky. 8 p.m.—Evening service; sermon b: Dr. Wood, on “Actors in Religion Musical program by the evening choir of 100 voices. (275 10 Every con a.m cted WCAP—Chesapeake and Potomac Telephone Co. (468.5 Meters). 11 a.m.—Service from L\lAhPr Place Memorial Church of Washington. Rev. G Diffenderfer, pastor, will deliver the sermon 250 p.m.—Ceremonies attendant upan the laying of the corner stone of the Jewish Community Center Build: ing, 16th and Que streets, A-feature of the ceremony will be an address by the President of the United States. 4 p.m.—pervice from Bethlehem Chapel of the Mount St. Alban Na- nal Episcopal Cathedral. Right Rev. James L. Freeman, Bishop of Wash- ington, will deliver the .sermon. 6:20 pam-~“Roxie and His Gang. from the Capitol Theater, New Yor 8:15 p.m.—Organ recftal direct froem the studio of the Skinner Organ Com-!| pany, New: York City. Early . Program . Monday. 5:45 to 7:45 a.m Up"” exercises b Life Insurance Co., Metropolitan' Tower, nue, New York City WRC—Radio Corporation of America M the Metropolitan direct from the 1 Madison ave- Early_Program Tomorrow. 1 p.m.—Luncheon concern by the Fotel Shorebam Orchestra, Minrieapolia St ices New York 30—Boston Paul’ Westminster Pr Concert progra TO Chyireh Anzelrs Church Scheduled for Eastern TO 8 AM. Catholic Chureh services 8 TO 9 AM stories 9 TO 10 AN tektower Orchestra reakfast of the Fire Dep: Boroughs of Brooklyn and ureh Protestant Church saivices . Church services 10 TO 11 an Church services AM. TO udio chapel services Avenue Presbyterian Church serv reads the funnies & Katz Chicaxo ices from Orehestra Hail fannien thedral services 12 NOON TO 1 P.M. THE RANGE RADIO ENTERTAINMENT UNDAY, MAY 3 1925 Standard Stations, WJD 3028 music Wz solos: Bible tal " Arch Strest Methodist Episcopal Church services rervices 1 0108, M. ces E gational Church services n Chureh services ... om_Gospel Tabernacle . Noir+ organ 12 NOON. WEMC WHAS con 285.5 3098 gy ine childen heater LWGN 370.2 mu- KYW by Rig Brother KPO wWWJ rvices WSB sterian Church serv- weeo Loew's Lexington Theater organ recitai Trom Chinese restaurant 2 P.M. rhestr ¥ ehair ederation . choir organ recital and services from announcements o Soasids Hotel m Betl T t Paul's Methodist 2 T0 3 P San Fran Low Anceies w York Chureh of Christ Berzen Symi vennort: Classical musie: Littl York: Queens County Chr it The Detroit News Orchest awo: Orzan reciial Sundae hymn sing 2:15—Philadelphia: Musical program Atlanfic City: Organ re 2:30—New York: Hotel H. New York: Prorram fram Pi Scheneotady: WG Omaha: Afternoon program Chic Now Yor Scientist, honr String Qua: S¥mnhans Orchestra fan Endeavor program Tribune Master ot WMCA songs WO TWHN e WWI Artists cadills’ Theater Semnhony Orchestra vocal solos TO 4 P 3.00—Xew Yo New York quartet New Vo Ans Now York Pittshireh Mooseheart. T11.: Co Aglantie City - Comm Al _from St J. Misieal nhin h il Cleveland: Musical n St. Gaoree's Eniscopal Interdenominational solos: chofr ... Edmont Haines and Pann's Orcheatra. Organ recital voeal solo art Fedaration = am by Ho: church John' Scoft: Musie Lovers Shadyside Church _services services: address 014 341 Presbyterian Church AT and’ {nstrumental ") Cleveland Orchastra 170 5 PM program from 1 ronesrt, voeal Rathel Litharan Chur rk T trio Roseland Dance Orchestra: Hearst Sa nd instrumental - mu Olcots Vail WRCN KFUO and’ his WHN CRAC 5T0 6 PO solos: ¢ ¥ ) F Philately Boston : ( olis-St ncert nro. Paul Jsville: Organ “hrist Chureh Cathed-al: choir City: Buse hall scores: orato hoir from Westnort Avenue P day school lesson: hymns by qu 30—Chicago: Organ: WLS Little B Pittahureh : Base hall scores: d Athletic Association Orchestra n Hotel Orchestra House of Hope e b ywn Church in the Vale ner concert by Pittshurgh hureh w00 WLIT WNAC weeo from WHAS services Presbyierian vensong service Stahat Mate erian Church ¢ WDAF WI KDKA 6TO T PM. 3:00—New York New York Denver: € tlanta Enie Golden Nathan Abas neert by Civie cert program Concert by Copley P! Musical program by with sta [ eld and his Hotel McAlnin Orchestra Hotel Pennsvlvania Orchestra Symphony Orchestra: solos WMCA Wiz, laza Hotel Orchestra Roxie ions WCAP. and_his WEEI, sang WIAR. Boston Pittsburgh Oukland: KGO Little Sympho fentist hestra Church opai Chu 3 T0 8 POL nringfield: Voo New York: Mart st tric Classical Chicako Evening from_Temple Foderated ( Presbyteria 1 solos: quarte 1 Richardson, teno; Tt alks nmanuel Los Angeles Dailas: First Bible_ sty Cew ¥ Bernhiard’ Levitow 45—Davenport: Base hall scores Schenectady Chy r urch Musicians services Hotel Commodore Orchestra Hotel Commodore Orcheatra choru; Keith MeLeod, pian- Zion Lutheran Church Choir Club sarvice from Orchestra Hall gospel xong WEA WY WOU Wz 8 TO 9 P.M Varied musical program orchestra Concert by Frances Simmons _WBCN Women's Orchestra WBZ Sunset service from Wilshire Congregational Children's hor Hotel Ambassado: Raiph Williams' Ore N.'Y. oral singers stra ide Hotel Trio Concert Orchestra other artist Watchtower Str: vocal solos am from Brooklyn Mark Strand Theater io services Radio Lighthouse Ch, V recital from Skinner Organ Co. WCAP, WCTS and WWJ 8:20—Minneapolis-St.” Paul: Second services tlanta: Wi New York 45—Jefferson 8:30—, jex Hotel City Memorial Church Church services Vanderbilt Orchestra : First Methoaist Church” services from of Christ, Scientist, “Weco WeB WGBS WOS 9 TO 10 P.M Vocal and instrum Ttalian night Vielin recital 00—Atiantic City New York Sehenectad from Davenport New York: ~Reminiscences of 4 Dallas: First Baptist Church: organ: Portland Zion. Til instrumental solos . San Francisco: State's’ Resta concert Los Angeles “oncert Leighton's Orcheetra. Razor ente Cleveland: *“Evening_hour Chicago: Concert: WGN singers 15—St. Louis: Address. “Come to Me A0_TLos Angeles: Amusements 45—Denver ital recital by Godtrey Ludiow.” broadcast Arcade Orchestra: Art Hickman's Janasen's Orchestra ... Drake Concert Ensemble Trom saminars radiotorial First Baptist Church services WPG WGBS First Presbyterian Church “services . Reporter Portland Council of Churches Brase duartet; Celestial Bell Quartet vocal ‘and urant Orchestra: Paiace Hotel . .KPO KHJ LLWHN WEAR N KF oiation chiat KFT KOA musi ehoir ann 10 TO 11 P 00—Los Angeles Tos Angeles: Organ recital from M n Francisco Portland Minneanolis-St. Paul Ladies’ String Quartet Towa City fliar hymns by Omaha Los Angeles: Fi 30—Davenport: Musical program: Dallas: Cline's Collegians’ Orchestra Metropolitan Theater program Theater announcements Colburn’s Dinner Concert Orchestra Weather: classical concert Miss Fahrman. soprano . Musical services from Croas Lutheran Church * Presbyterian Chlreh services orchestra : KFT KHT KPO KGW, ween WSUL WOAW Lo > E. Church solos Beethoven 11 PO TO 12 MIDNIGHT. 00—Los Angeles n San Francisco chestra Los Anzeles T.os Angeles Musical progi Musical program 2:00—Los Anzeles Mooseheart, Examiner_program IIL: Concert: Straight 1 T0 00- DAYLIGHT SAVING HITS EASTERN BROADCASTERS Central States Stations Gain Lis- teners by Time Change—Far West Also Loses. By the Associated Press. CHICAGO, May 2—Eastern Western adiocasting stations ap- parently have lost long-distance listeners under daylight-saving hours, while. centrally located stations ap- pear to be reaping some advantage from the clock changifig. With New York on daylight time, a time difference of four house exists between the Eastern metropolis and the West coast. so that the East i some instances is on the air too e: for such long-distance reception, while the West goes on too late. Central stations, on the other hand, assert that they are retaining their regular body of listeners, and in ad- dition picking up others in the East and West. 3 All the principal stations in cities where standard time is observed have retained their regular transmission hours, but in cities where the clock was advanced clock hours are used for radiocasting. A few protests have been made over programs of stations on daylight time, but generally the change has joccasioned little com- ment, the radio fans tuning in wherever prospécts are best. Lambdin Kay, director of Station WSB, at Atlanta, said °that three years' experience indicated that Eas and West stations lose a heavy per- centage of listeners under daylight saving. 08 Angeles Both ends of the antenna need not be at the same elevation from the the A | and Bill Hennesss's Orchestra | Ambassador Orchestra . Palace Hotel Orchestra: Ruds Seiger's Or- Classical program, vocal and instrumental 12 MIDNIGHT TO 1 A s KFT Orchestra WJID AN KFT BEST OFFERINGS TONIGHT. Musical program by “Roxie and his gang,” WCAP, Wash- ington; WEAF, New York WEEIL Boston: WJAR, Prov- idence; WCTS, Worcester, and WWJ, Defroit, 6:20 to 8:15 o'cloc RADIO’S Musical program from the Brooklyn Mark Strand The- ater, WNYC, New York, 8 to 10 o'clock. Organ recital _from New York City, WCAP, Washing- ton; WEAF, WEEI, WCTS, WIAR and WW]J, 8:15 to 9:15 o'cloc Vocal and instrumental pro- gram, WPG, Atlantic City, 9 o'clock. Program by Cline’s Col- legians Orchestra, WFAA, Dallas, 10:30 to 12 o'clock. Brunswick Hours to Continue. Announcement is made that the Brunswick hours of music, which have featured the Tuesday evening radio programs through the past Winter, are to be continued through May. These programs are broadcast from the Brunswick laboratories in New York City by stations WJZ, WGY, WBZ, WRC, KDKA and KYW, and the opening concert of the May serles will start at 9 o'clock, Tues- day evening, | rec | long-distance reception | wave SUNDAY STAR, WASHINGTON, D. C, MAY 3, 1925—PART 1. HOW AMUNDSEN WILL GET WEATHER REPORTS IN POLE DASH / qAzoREANE This map shows the vast network of meteorological communication that has been established to determine the most favorable time for the hop-off of the two Norwegian Aero Club airplanes for the North Pole. ports will be received on the expedition steamer Farm, now at Kings Bay, Spitzbzergen. The wireless station on the | type of hattery plays ar st northerly weather bureau that ever existed. It will get radio reports from vessel is the n from Annapolis, Md., to St. Paul, in t] [RADIO GOSSIP AND NEWS The making Naval n e Radio with s records its short-wav ers, of which there are now afloat. There sets of this type in Besides tr seven ashore and four are 25 operation afloat and ashore the original set at NKF, the radio la at Bellevue, D. C., which recently carried on two-way munication with Sydney, Australia, on 20 meters, equipment at Quan Va.; Lakehurst, N. J.: San an Francise reat Lakes, IIL, and Washington navy vard is now functioning on wave lengths between ) and S0 meters. The ships so equipped are the Los Angeles, New Mexico, Canopus and Sturgeon B: operating on from 40 to 150 meters Through the co-operation of an eur in Minneapoli naval of- at the Lakehurst air station re- tly carried on a radio-telephone conversation with his mother in the former city. Using the short-wave transmitter the officer raised the Minneapolis amateur, who called the officer’s mother on the phone. There followed a 30-minute conversatior relayed by the kindly disposed am teu Recently. Guam picked NKF, operating with only about kilowatts. Following the 1 battleships and cruiser: the yacht Scorpion b a short-wave receiver nals from NKF at ed ever the Mediterr receivin a bratory com- Diego, up d of several operators of ilt themselves on which sig- vue are now As the yacht this is good The short- als came in stronger than the long waves from Annapolis, a re- port states. The ship-made receiver is a single-tube set: five turns of wire were used in the primary, 1 is in anean turns in the secondary and 19 in the | tickler. A 12-foot antenna was used Most of the ships so equipped are using sets made by their radio men The craze fc ort-wave operation also has reached the Naval Air Service. A plane aloft over Anacostia succeeded in sending to Bellevue and reached .amateurs in Paul and mpa on 20 meters. The Ltest istance worked with this slane set was about 2,000 miles in daylight. The plane could communicate with Bellevue on 20 meters up to about 60 miles. when the signals faded. only to reappear at distances over 700 miles away. Reception in the plane on 20 meters was possible up to 40 miles from Bellevue. From that point on interference from the ignition system of the Liberty engine prevented good reception. This development of short-wave radio equipment for use in aircraft is based largely on experiments car- ried on for the past few months at val Research Laboratory at Belle- ue, the Marine flying field at Quan- tico., Va., and the naval air station, Lakehurst, N. J. Experimental short- wave sets at these stations operated from the ground have been able to send signals heard in New Zealand, besides being able to receive from the same distance. It is hoped that the adaptation of short-wave radio equip- ment of extreme lightweight will open up a new field for the use of radio in aircraft. The I hipping Board is finding the short-wave circuit to London of ex- ceptional value. Through the co- operation of the Naval Communica- tion Service the circuit from Bellevue to London on 71 meters, with 9 kw. power, is handling all Shipping Board European traffic, approximating 1,000 words a night, with great satisfaction. In London the board’s radio officers pick up Bellevue with a large loop on the roof of the Bush House. The short wave decreases the power Te- quired for transatlantic traffic and lessens interference from KEuropean long-wave stations. A 24-hour service is now the only thing to be desired. Radio Conference in Fall. Secretary Hoover has announced that he will call a nalior\‘al radio con- ference in Washington in the latter part of September. At this, the fmn_'(h conference of the ,representative branches of the art and industry, sub- jects brought up for discussion will include super-power and high-power for broadcasting, additional broadcast- ing channels, the use of short wave lengths, international broadcasting and possibly the question of programs, as regards advertising and censorship. The Secretary reiterated that he is not disposed to make any change in the allocation of wave lengths to broadcasting stations unless there is unmistakably manifest a desire on the part of broadcasters and listeners to shift wave lengths so as to im- prove reception. If it is found possible to create more channels in the broad- casting band it is very likely that _ths conference will vote for a reassign- ment of channels providing better facilities for the high-class, powerful stations which have a national clientele. They may also vote to limit the number of class B stations so that, if no more wave lengths can be provided for broadcasting, only 94 will have to share the present 47 channels; that is, only two to & wave length, This, it is believed, would re- A, ' | | resu he Behring Sea. { siderably | The Departn ’ e will | make every | public satisfac but it appears to be up to the radic public and the ir v to find the hieving | sadcast perfectio Suggestions for radio law wi with a view of d national law. stand for some years to without handicap- | ping the radio development eans of a amendments to the aleo be discussed up a set of | More Time Signals In response to several req | aaditional time s transmitte special hours f survey pi the Navy b h meridian May 15 and September J.\nr(l]m“h nd NPL | Following simil: missic lust year, for | United geological ties, whick Ited in the hitherto ir | possible accurate location of certa | points on the earth’s surface, one of which was charted as 15 miles from its exact location, the Naval Observa- tory and the radio service are plan- {ning dual transmission this Summer for surveyors operating in the States, |Alaska and Canada. A party of | | United States experts will survey the | | western extremities of the Aleutian Islands, off Alaska, another fleld party | will carry on longitudinal work in ce | tral States, while a party of Canadians | will explore the McKenvier Valley | Exact time signals are essential |this work and will be transmitt | from San Diego at 5:55 a.m. daily, and | from Annapolis at 2555 each mor | The wave lengths used are extreme high, so that broadcast fans will not be able to pick them up, even if they are awake at these hours, which a | believed most satisfactory for the fie | workers. time 30 fro r successful tra anadian survey s @ resu Church Chimes From WJZ. ning does not seem complete somehow without the sound of church bells wafting through the morning air, and with this in mind station WJZ is going to supply the | | radio audience with such an atmo phere for their Sunday mornings Starting at 10:40 o'clock this morning the new chimes of Grace Episcopal Church will be broadcast by WJZ, and this will continue to be a regu lar feature throughout the Spring months. The chimes of Grace Church | are considered to be one of the most complete sets on this side of the| Atlantic, and were just recently in stalled in the church and made their | radio debut on Easter morning when | the first note played on them was | broadcast b WJZ and WGY. “Mike’s” Voice Deceiving. | Attempts at sizing up radio an-| nouncers by their microphone voices | have come to be the newest of pastimes among listeners, judging trom dozens of speculative letters be- ing recefved at KOA Just because an announcer’ speaks with a deep bass voice is no indica- tion he is “tall and thin" or that he sings bass or baritone, has gray hair or is of light complexion. Experience shows that the micro- phone voice is most deceiving, a care- ful check of KOA fan correspondence proving that radio voice S!‘E"L\lfllnl'}flK | miss their mark more than nine times out of ten. So far as KOA’s audience is concern- ed, unusual interest appears to be | centered on R. F. (Ralph Freese).| Contrary to the theories of listene; who have endeavored to figure him out, he is a lyric tenor and not a basso; he is of medium build and average height and not “tall and thin,” and has fair skin instead of dark. The Balkite ebnrl and Bal- kite “B"—the ideal power by FANSTEEL PRODUCTS CO., Inc. North Chicago, Illinols I | interferences |& The weather re- almost half the eacth, VIGILANCE COMMITTEES TO CURB INTERFERENCE Radio Relay League Starts Move to Locate Causes and to Effect Dispatch to The Sta HARTFORD, Conn., May Vigi. lance mittees designed reduce interference in radio communication have been formed by the traffic de artment of the Am an Radio Relay League and are already functioning in a number of nunities in the United States. These committees are \ed to promote local co-opera between broadcast listeners and dio enthusiasts. mittees consist « % amateurs who are the league, a 1 broadcast Remedies. £ three mem- representative Radio zati to identify the experienced them, and, when the cause: vond their control, explain to ved parties what they are. rhe committees will also to exe the necessary upon violators of law or terference, should any tered League. nter causes cure be ag e be able influence flagrant in be encoun Eldridge to Talk on Radio. M. O. Eldridge, directc traffic will make his radio debut through WCAP tomorrow night, when he talks on “Making the District Safe for Motorists d Pedestria 4 CALL FOR, LOAN ANOTHE RECHARGE AND RETURN Your Radio Battery, $1.50 JOIN OUR BATTERY CLUB 4 Tickets for $5.00 Complete service as above Radio Tubes Reactivated Work Like New, 35c Each to Electric Vacuum Cleaners for Rent—S$1.25 Day STANTON BATTERY & EI:ECTRIC SERVICE W. H. KLINEHANSE, Mgr. Lincoln 9309-J 403 C Street N.E. Automobile. Radio and Electrical Supplies and Repairs Open Evenings and Sunday [t | Car owners thrgughon mbtoring—and have benefited the and is willing that his fciiow fans evening experiences. Smith has a it will pay radio devotees to follow No. 14—The A B C of Batteries. Having connected again the re- charged siorage battery to the set, Smith came upon the logical moment to get a line on the batteries in gen- eral. Why batteries at all? Why were there three different kinds for his set? Why could a crystal set oper- ate without any? Questions which had been whirling around in his head as he tuned in sud- denly crystallized into one big query It was just his craving for learning the A B'C of them have never seen so many different [ of hooking up ries in all my confessed this average man i remembered batt nly by the com paratively simple wi they are used for furnishing current for automobile headlights or for the front doorbell. “It seems to me that in radio they hook positive wires to negative, or vice the world have follow John Smith and His Radio BY FREDERICK C. RUSSELL 4 Jokn Smith in his dofly reby. Now he has taken up radio, should be amused and profit by his faculty for “finding out things” se him in The Sunday Star eoch week. a small power y which could be kept up to top efficfency at all times. “Now for the ‘B’ battery.” I went on. “This provides for the carrent on ths plates of the tut For a multitube set like this it is necessary to have a current of 90 volts for this purpose. This can be supplied either by four 2234-volt or two 45-volt dry cells con nected in series—negative terminal of one wired to the positive of the other —or by means of a transformer con- nected with the house-lighting it, generally known as a 'B eliminator “Just to the filamer of a rheost you control the ‘B plate of the detector is one more current most advance sets is handled auto matically. Here is where the ‘C ant bat as you cor e ‘A bes L potent > curry ) the ibe. But there control which in current s of t nean: figures. When e tube is as an amplifier it is important positive an attraction plate ca versa, and get away with it “You're confused because you still putting the cart before the horse,” | I told him. “In your crystal set, if | you remember, the detector does the work of rectifying the extremely high | one of from 11 radio frequency current, but it does|into the not amplify. It will not operate this. Its ud speaker, and because there is no | ut eans of plifying the incoming it sh radio frequencies, it will operate only for neart In orde under adverse conditic aerials and to h loud speaker, | necessary electric power, which, generally supplied by storage or dry cells. Using current for amp fication a crystal can be used in cor nection with the vacuum tubes, but in the majority of manufactured sets the detecting is done by means of the tube. electric _current being required to operate it “You re r how, in icturing the activity inside a detector tube, you | observed t in whch the faint inaoming « from the aerial is made to control the strong ¢ ¢ supplied the batteries. Now you need to know is the part nd why Here Smith interrupted to suggest | that we pull the table holdi e set | away from the wall so that | nections might be v He believe 1 mixing theory with practical app! cation instance, following lends the storag batters d they were connected to uch a way that the curre explained the arranged that negative, o0 negative elec maintained a stations. to pickiup distant stations o simplify thi programs over the are some ing well now There are |ing sets on th and seventy- quency ampl vpes of radio receiv arket. One hundred these use radio fre. ent by to YOUR RADIO Repaired—Rebuilt OR SPECIALLY CONSTRUCT with your cherished idea of & Erpert Work A Your Satisfaction Means C a Call Main 9—service Dept. RADIO INSTRUMENT COMPANY D39 D SLON.W Frequency and Dert a | is each D in _lin Teat Set.” Radio reed it W source for brightened at the followed close of the dif E-Z-TOON dials will tm- grometre taringofaryradio set. Feplace youroid dials wit E-Z-TOON and marvel st the simplicity of ox bt moment to inata, simplicity the explana tween dry rent and storage battery c required ich used less current ferred by The ete.. Black, é0c, Ms 1f your dealer cannot supply. os. E-Z-TOON RADIO COMPANY 3234 W. Washington St., Inglanepeti, ind. “Tho Key to Simplified Tuning" vided for WE SERVICE ‘ Exide, Willard, Presto-O-Lite, % U. S. L., Philco, Westinghouse J or any other make of battery, ;‘ either Automobile or Radio Phone us before 10 am. and we will call for, fully charge, and deliver your RADIO battery the same evening for §1.50—Fastest and best service in the city. SMITH’S Battery and Radio Service 2119 18th St. N.W. North 9928 North 4896 NANA A AR AR PN A AR 2R 2R A R Last Chance Sale! Polydyne Radio Sets . Complete with 1 Polydyne, ‘5 Tubes, 2 B Batteries, 1 80-Amp. Storage Battery, 100 ft. Aerial, 50 ft. Lead-in, 2 Insulators, 1 Ground Clamp, 1 Lightning Arrester. have all the $47.50 same features I: as the Freshman Masterpiece; same circuit, but withja better cabinet. This is your last chance to secure;one bf these famous sets at this low price. Act quickly:™ ' Special terms, $2.00 Weekly with a reason- able down payment. These sets RADIO BALCONY—STH ST. ENTRANCE SBURGH & BRO. 7th to 8th to E Sts.—Franklin 7400 RN AR AR PR AU 2N AR L3 [ ® ® 4