Evening Star Newspaper, July 11, 1926, Page 19

RADIO EXPORTS FROM U.S.| [T ONG RANGE RADIO_ENTERTAINMENT mith and His Radio || srov o wu) | *9%% * Bt i || Come To MAXWELL’S—Where You'l Be § BY FREDERICK C. RUSSELL | : Total for Month, $443,981, Consid- " Programa. of Distant Stations Soheduled for Eastern Standard flm > \ Cat oioners throughout the world have followed John Smilth in his datly | | erably Below Figures ‘for T ; : : ’[ ted Be d Y D l]ar G F&l‘fll Bt A AL b e Porod » Yone Ago. : ; ; rea st and Your Dollars Go est & gy Aoy u:oefi'?.,?.?x‘w%’m'f,‘.’ %&;Amfi‘r m’:éeah. 4 m"tht“n "“é’m‘:.m'm‘;fl $577, : folles' itis o at W, ok : “1710 in May, i ha ‘Department of : Som us bow pleasant ‘w Maxwell's.. We. go out of our . | Commerce announces. 8 w.yt’oyluuym, for we mhwhvuhu&oulufimonmthemufum.. No. 72—Tests That. Really Test. [of good batterles, just through mak: B:,',,, = fim bellever 1n the 'value |ID& Another misSive with. this test: """,,"m."’fi'%.‘" m,.,""m"‘..f A ‘home: furnishings is in- mr ‘home, - Wo-urry extensive varieties to insure ©f subjecting the receiving set to fre.|it seéms that when he touched the tubes éafe..m proved b comparison—and our quent and systematic tests isn't neces- | terminals with th \ WI’UL EDIT H.Al' is at m dilpoul afi the time to make paying gari agai - | he did not make tight contacts. Every Fie vadio troubles. ‘One ot the tmpor. | time the contaats siipped & litcle there was an interruption in rren tant points is o bo'sure the tests |¥es 81 lnterruption in the eu A little knowledge is a dangerous thing in radio set care, as Smith soon discovered. He always had be- lieved in feeling the set’s pulse, but he was to learn that often the pulse can be misunderstood. The earphones’ test is a case in N voint. . With ordinary phones it is a simple matter to listen in on the action of the “B" batteries. The noise that comes from the loudspeak- er along with the concert may have its origin in these batteries. The bat- teries themselves do not make a noise, but they often do deliver current ir- regularly, which, so far as the radio owner is eoncerned, results in noise. If a battery is in such a condition the way to be sure is to touch the tips of the phone col to its ter- minals and listen Yor the evidences of unsteady discharge which will be registered as clicks. The first time Smith tried this test % he forgot to pull the tips of the phone cords out of the plug, trying to test the batteries by touching onme ter- minal at a time with the plug. Of course he heard nothing at all be- cause there was no circuit flowing through the phones. Later, however, he found that the tips of the phone cords could be pulled out of the phone plug and that to make: the test he must touch one tip to each terminal of 'the battery being con- sidered. & Learning Slowly. He was learning, but very slowl Stumbling would be the better word. Even with all these revisions of his original plan he got no response from the phones. When I iInvestigated I found that he was touching the tips of the two positive terminals of a 45-volt battery, which has a separate plus terminal for those desiring to cut in for only 22% volts. “You need positive and negative oonnections for a circuit,” I told him. “Next time you try that test touch one tip of the phone cords to a nega- tive post and the other to a posi- A\ tive. You have several batteries, so be careful to confine vour activities to one battery at a time, or to the combined output of the batteries when they are connected in series. In the latter case first see that the batteries are wired together from positive to negative,. or - vice versa, and that you touch the phones to the free terminals, being careful to touch one negative and one positive, and not two positives,” Smith thought this- was' simple enough. And yet he discarded a set earphones. recently was in using a voltmeter to test the A battery. Smith uses a good voltmeter and usually uses it in- telligently, but this could not be said of him in connection with watching over the A battery. He did not know that a storage battery may be very much in need of charging, even though a voltmeter reading of six volts or thereabouts can be obtained. A storage battery should be tested with a hydrometer, since it is essen- tially a chémical battery and the spe- cific gravity of ‘the solution in its cells is directly related to its efli- clency. As a storage, or chemical, battery discharges its plates are reall going into selution, with the resul that the plates are inclined to buckle. Most fans have been led to believe that buckling is a trouble confined to_overcharging. ‘When a bnnery- specific mvlty registers 1,200 or less it is reaching a point where excessive chemical action is beginning to shorten its life. It always takes very much longer to charge a battery that is a little re) under the safety point. One reason why a storage battery lasts so much longer for a radio set than for an automobile - is . that discharges -and charges are less extreme, Judgment Not Good. In making the ‘“loose .connection test” Smith does not always use good Judgment, I caught him the other day listening for clicks from the loudspeqker when turning dials,” one at a time. There was no static, as his neighbors had verified. The b‘! teries were delivering an unlnunupt ed flow of current. But he was ing the mistake of t.unng wlth a part of rheostat control. . A rheostat cannot help but make a nolle for its slider him.l contact when changing its po- sition. Smith should have been testing for scratching sounds from the loud- speaker by turning one variable con- denser dial at a time.. This would have shown up any loose connections at the condenser rotor or stator. In making such & test the set should be tuned to a local station, otherwise noises might be due to interference distributed as t $2,! 7.‘199: 1928, 'l.“l lll, ll!l, l OM 914, and 1925. l),DO ithough um wer the largest in Oetober each year, lt [3 s that American production domenle n-.ln nuh their high points in De- mm of electric mxm lhmfll Lfl:@; IMI '112 C” other (omefl 591,206 VBIM at !11'.218 “bat exported totaled d storage batteries 25 672, worth s“! 086, . Sunday, July 11, 1926 NAA—Nanl Radio Station, Radio, Va. .5 Meters). 10:05 a. m 10:05 p.m.—Weather ports. 9:656 p.m. -—‘l‘hno lllll.‘l WcAI'-flwun Telephone Co (uu Meters). - 11 a.m.—Service from Epworth M. B. Church South. Rev. John Paul Tyler, pastor, will preach. 4 p.m.—Outdoor service from Peace Cross, Wash] n Cathedral. Rev. Anson Phelps Stokes, canon of Wash- e ,‘wlg’ o program by Maj. M Bowes and the “Capi- tol Family,” direct from » New York Cit) the program will rect from the stage of the theater und will consist of music by the Capitol . Grand Orchestra and the featured artists. The second part of ‘the pro- gram will consist of a special pres- entation. by Maj. Bowes of vocal and instrumental artists direct from the broadeasting studio in the theater. llfi to 8:46 p.m.—“Atwater Kent Half Hour,” featuring Allen M&Illn. Irish tenor: Edward Burke, bass-bari. tone, and the Atwater Kent Ofl:hll- tra ‘m&;‘n New ¥ork. Program fol- with stations near the same wave Jows: length. Next. Wuki No. 73—Learning by | ot el (Copyright by the Ullman Feature Service.) nedy -Russell), Mr. McQuhae l.nd or- h “Great Awakening* (Kramer), 3 “Solenne in quest’ Ora’” (“Bm ln Thll Hour") from “La Forza Del De: (Verdl), l(r IO-P “ 77 Full Bow-End Bed Silk ‘Boudoir Large ' Dresser Lamp ALl and mi; R - Averiue nuu- m Curillon: - Hotel Efié %‘1 6:00—Schenect. Mldr' Ym Ernie 1 “""?‘?’f‘“}“ T Hu“guenbt Bedroom Outfit IN GENUINE nuauaum"’ :AI;N: $1 ‘Hiackstone. $ £ “Now the Day Is:Over” (Barnby). Radio fans and amateurs who at- | for the broadcasting event, returnin ] reyie ! Early Program Tomorrow. nist semb) ; Atwi :%; i McQuhae, Mr. i i ¢ fir o e .%,‘ i3 EE SR or Oré - tend the Sesquicentennial Exposition |immediately to Marine Summer quar- in Philadelphia will have an opportu- nity to see how Uncle Sam handles the administration of radio both on land and sea. ‘A special exhibit has been installed by the radio section of | L =, the Department of Commerce, under the direction of Radio Supervisor R. Y. Cadmus of the third district, which,| includes Philadelphia. It includes ap- paratus_employed in radio transmis. sion and reception, as wéll as some of the more complicated devlm used by Secretary Hoover’s radio police to see that broadcasters and other transmit- ting stations are operated according to law. | Among the more unusual apparatus by the Government’s radio in- spectors ‘are testing equipment used t0 measure fleld strength of stations, ‘wave lengths or frequencies and in lo- cating transmitters or other gener- ators of electric waves which cause interference. Some of these mechan- isms are so delicate that power emis- sions as low as a fraction of a volt ;and currents as small as a thou- sandth of ‘an ampere may be meas- ured accurately. Two large wall maps indicate the Jocation of broadcasting and commer- cial stations .throughout the, country, ‘ters until July 19, when he returns to New York. Two-Fisted Radio Men Wanted. Only “two-fisted” radio men are der sired by the Army and Naval radio ce. This is because, when jin transmitting, the operator’s =right hand is busy on the key, and the use of his left hand for numbering agd timing radiograms, as fast as they are sent, is desirable. It also is necessary for modern 6:45 to 7:45 a.m.—'“Tower Health " from Mmopnuun 'lbwcr, New Yark Cit! WRC—Radio Owwndon mmrh (4685 Meters), Silent. My Program Tomorrow. . 11:55 a. m-Arllnt!on time signals. )—Organ radio operators to be able to typewrite, |, since several clear coples ot t.hs mal sages received are desired, writtén messages have to be tflwd- Commenting on time-saving molhodl in the service, an old-timer in the Signal ' Corps says that, just as Sn modern telegraph - offices, a operator must be ‘able to tick oll a message with one hand and mark off the number -and time sent with the other. Radio operators as well as telegraphers who cannot thus become ambidextrous. find themselves hope- lessly behind time, if not lost anunly when handling @ large number messages. An operator.may have a “lightning fist” and a keen ear, as he puts it, meaning that the man can send and receive with good speed, but .he is. still in the “ham” class unless he has CONSOLIDATION OF WFBH|™ AND WRW IS ANNOUNCED |, Merged Stations to Broadeast En- tertainment and Commercial \ wmm-flymo«» Corporasion of New %ot:;;'..lnd ‘WRW of the Tarrytown Radio Research Co. have been pur- chased ‘and will be ly by the Peoples’ tion, u\nwnnmmt Stio Both th 5 A beautifully furnished living room moderately priced; suite is upholstered in highgrade figured velour of your selection; the balance of the articles are selected to harmonize with-the suite and will furnish a cozy and comfortable room. Lh el 51575 from which it is possible to observe | learned to use both hands. transmit on 375 meters i Just where radio congestion is found. It 15 understood to be the lnhnuan fur Impatience. Other charts indicate how radio trans: | Navy Authorizes New Sets. | Of the + Alloged 'to have slashed Charles E. — 1N ue! Consisting of a full-size { Mission channels are assigned and | Flagships of all naval sea-going and commerdial programs 15 | Stoneburner of Arlington, Va., driver : | bed, a wovnu wire 4 ment 2 how stations rate as to power used in | units are soon té be equipped with day and seven days '”. a he b 'P"hl and a restful cott transmitting broadcast matter. high-frequency or short-wave radio Musm“ B %ex ey . s % | Cravath, prominent corporation law- !hh Llldld . Part of the exhibit includes a his- |apparatus, according to the program | ey romiga bt not | With a knife for pushing his elevator | ver, last night stated that he and his |\ tress. - You must see toric display, of radio apparatus, in- fof the Naval Communication Service: | yet been s :'::rtod to nor m 3 button too vigorously, Ralph W. Saul- | wite had separated. No divorce ac- | N\ tomorrow . el e bt o | oo el St T e Booartnt oo |, 128 wallaeh s, lors, 8 | o 1 comtpi 1y Sk ok CASH—50c ] equi or luctor N : * years ago, but now replaced with and those of the mihor units With % | from Faveramn o FonkAre Ris hun house at 2640 Massachusetts avenue, | Syir cyayarn has hor erimeny aa: 31.00, ASH. A WEEK anodern tube apparatus. A series of | KW sets. the enactment of | Was sought yesterday by the police. | ;- ‘g’ Motgan & Co. and' other m'. devices illustrate the " progress in| "Experiments with 260-watt short-| Fadio the nt Stonebumer, who was not seriously | & 'lldd wife, whom' 5 3.:‘? transra:szlon ‘nnd rw;mlon as | wave trl.nlml‘:terl at land. stations November 16, 1892, as methods of measuring wave [and on some destroyers have.proven sting Atnes nato y Jengths and power utilized.” Marine | yery successful rorwl:u-nn‘e vvrk narily sanctioned, and driver had m"“,. ‘h:l':;u o, 5 New "'* radio power plants andl. auxiliary | The Denver, while at Arica, commu. to 3 of m":‘: i means of transmission for emergency | nicated successfully with 'the Finch, 5 3 1 Eue one: {uses will be demonstrated for fans|which was on Asiatic station, and was asked him if M:l ffunfl:‘n with the transmitting ;IKI” l;?ard ;nnn:\; zrfia bl“:e NEW SWEDISH STATlON h- B end of radio. lemphis _an ittsbur ve n that was, Saulter, he charged, | 5 ‘Although the activities of the in-|authorized -to conduct.-pnm ¥ A ew & knife-and cut hlm. £ = Ty spection force are devoted to pure | munication tests on 10 and 35 meters ¢ S S BT AR e g 4 S-piece U"f""'l"*d radio, it 1:, (l;evertl;elesl’,‘ trequenm; aflanammxra while cruising across | 50-KW. Braocaster to Be Opened MEX'CAN PAPER. QU'TS. - F e = v Pt i necessary to determine the source of |the. At . Destroyers now going 4 -t . , = = ey $ ¥ radio interference with apparatus de-|abroad to relieve. ships in European 3 8t Motala, i 5 . i of l}lm drop-leaf hble . nul our_well signed to show the location of sets 'mterlmbaln‘ fitted out with short- to have a modern 50- I « | terference in receiving sets. Among |bulld ~250: vn!t 3 for_which the government has 2 i a b ) | . i " v lo {or electric apparatus causing the in- | wave ~receivers BUBOHISd 15| Kiorart el St {Sioaia Financial, Bather Than murlm. | the causes found aiready are leaking | appropriated Sll‘l.“l. the Department JReee. Muex, puov, slsseuio” SEI. : of Commerce is advised. ‘This will | MEXICOCITY, July 10 (P)—The s | ! ! | sparking motors of many types and 4 ROME, July 10 ! izt it ) St“ cw.—aac a Week | 120 electrical Insulation and grounds, | - Other haval oF weniay "fimm’”“- morning newspaper EI Pais, which |the W | Fakb j % { /Among the exhibits is a new type movn Include: the award of station Teceiving set capable of picking up 500-watt and 10 z-xw tube | transmissions in code or phone ‘on 'nmdrl for installation at vari- {any wave lengths from a couple.of | ime(erl to aroynd 50,000. A 500 or { half-] kiluws!tatrlnmi;w m!uhzh‘:u is used in broadcast work, wi shown, i as well as Imlf—kllowutt Marconi spark | Mare Island. set, a radio compass. and some ama- | ‘mr oqulpment Z Roxy Returns to Alr. v gton. /8. L. Rothatel, better known to the | The modernizing of the Navy ntio | 6, the e et o devide amid : dudience as “Xoxy,” will return | shore and ship 18 expected to gE P he improve amflmnluunn all radto. "g"" M“ > the air Friday night, after an ab- ol nce of five months, when he leads | and to decrease local interference ©on- ol the he United States Marine Band in a !siderably. . By by concert at the Sylvan Theater. The used 'g":';r;,:'%“?&"%‘zé’%“finfi PATENT moumv ASKED % fons allied with the Broadcasth f Ameri “Roxy" has not been heard “on the | & air” since last February, when his| nn: gave their. final program, until the ox‘xy Theater. ms, early nm An. At year. It was annou recent] 3 1 : Fhat “Hory found the strainiof com | a. royal. Masical AL programt by, ; ‘bining both his radio and motion pic- | the: t | Edward Bowes and the "Cn ‘ture duties oo strenuous and was n e tol Family,” direct ‘ obliged' to devote all his time to his ! H tol Theater, New w film enterprise, the most ambi- r > 7 sus undertaking of his.career, ¥ ¥ WO ning e | tions "as _administration, 3 d . 3 i 2 )n.rfiu, as per orders ueelvud l!vm educational - the. i oy v 3 s ’WF?""" (Col. David D. Porter, com: