Evening Star Newspaper, December 6, 1925, Page 50

WM. P. BOYER CO. RADIO—SERY ELECTRICAL CONN 812 13th St. K UCTION M. 842 amplifies without transformer distortion ata Here's a new Audio Transformer that “lets through” the deep and the high tones. Its perfect amplification of the overtones makes for mellow- Tess and reality. Experts in radio acoustics since 1908 If Is New in Radio We Have It i radio public | both instructive and ente | nealing to the general listener [as t : in domestic and regulay I been a RADIO GOSSIP AND NEWS || | _Commercial Attache Julian Arnold, | u: ven an wvpportunit: recently returned from Peking, China ! is now making a tour of the countr he Commerce Department in the an industries and | However, t is furnished with brief | ing some one who ¢ ver radio | tonzue ign velations. En route the nd entertaining talks asters here and the Within the next month or two M Arnold will speak on various ph z Doing in China ew York WBZ, Boston: Rochester; W.JIR, Detroit: . Indianapolis: WSAT, Cincin "EAR. Columbus, and WRC Washington, and it is hoped arrange- ments can be made at the following SMB. New Orleans: KSD, | WM K tations in Por Md. no longer Secre and, Oreg., and Balti- Hoover | r for the and various of his experts {along different lines frequently browd cast for the benefit of those who | listen in. The subjects chosen are ining, ap- as well rveturns from eign flelds, he is n valuable auxiliary aid to of the Commerce Depart who is so well known to radio | The talks are planned for the busiress men,” but are mos i acceptable to the average fan, since| | they take the form of short or William Upson, for X attache it Vienna, Austrfa. last May from there b casts on such subjects as Agr India wpan wm - of the 4 nt Contrasts ions zium: American Influence Yin Greece “hanging China Austria: Porto R The chantment; Ar “The Land the Pampas, others. These ut o doz hout the ions used | New York: WLIT. > X, Schenectady: R, Detroit: WMAQ. ). st. Loui 1B, New <B, Atlanta: KPO. San | . and KHJ, Los Angeles. | Isle of home of the United States Marine | Band, has been included in the land-, e system of broadcasting station | and by the famous iilit organization will be broad- cast throughout the Winter by this| station in conjunction with V and WGY. | of the Winter's series of the Marines was broad- . under the leadership of liam H. Santelmann, and the gram of broadcasting has Tuesday nigh: antelmann, who a vear ago was a little skeptical as to the good re from | water the Alpine Provinces THE SUNDAY STAR, WASHINGTON, D. C., of ,.'nin;." v {ree and uncensored, might try to put over some Soviet publicity and damn the Government hea is time the Laplunder evi dently stuck to his text—that of find- | 1d speak his | and identify him. Siberian Singer to Broadeast. IO e Gl s el Maria Kurenko, singer. and Pelix cellist, will sha honors in the “A Kent Radio Hour” which will be broadeast by and 13 connected stat Marla Kurenko is native of | o Tomsk, Siberia, and has sung in the | fc ebrated Siberian Imond, IEnglish | Smith in his efforts to get good recep- -[tion was his inability to understand the working of the grid of the vac uum tube. This action, to be sure rgely automatic, yet, by improper operation of the controls, it is possible the operator to stop the normal fon of a tube altogether. can be obtained by a 4 - attention phony and has concertized in V ion of the grid ingt Philadelphia, Baltimore fo simplify matters for Smith, 1 other cities. decided to consider the grid of a_tube to he used as an amplifier. When 2 e | tubes d in this manner, Radio on Freight Trains. than as detector, the action of the “urther reports on application of | elements of the tube is to amplify radio and wired wire to railroad- | frequencies of like kind. That is, ing by the American Railway A tube used as an amplifier magni wion reveal that a new carrier cur- vadio frequen rwired r: tem has been As a detector, the function of a tub developed for communication hetween together with its grid condenser, is ihe “front ear cars of long to make the change-over from radio freight trains on electrified roads. | frequency to andio. Bither als or volce may be Whether a tube is used for radi the latter. hov ication, or for the pu v the train is standing th ze-over, the ngths of 100 to 400 &rid works in mu ame way. were used in recent tests with | At this point, was ready to over a line | see the grid in operation. | He observed that the grid acts at @ tinz test was made | Point between the plate and the f on the electrified section of the Nor-|ment of the tube. & Westeris Rallroad lin this position” the in two to control the el el s they candescent filament to the plate little 50 s power grid was rons able Smith then noticed the position of | the grid, serving. as it were, as raffic tor the electron in the rails the 4 and stopped most sati . both en - working tc The train Krid e ed up speed incres nearer to the filament than to the o 14 miles p in less than a | Plate, 3 3 minute, whereas it usually rec Smith's third observation resuited lheiitine o in the discovery that, in addition to {iiin b receiving current, either from preced hed wit ing tubes or from the tuning i bamine nt itself. the grid usually receive m frem cab to little current from some other B source as well. This additional cur rent, he learned, gives the gri ditional potential. was reminded that we were picturing the grid on the job in a tube used for amplification. Construction Puzzles Smith. Voice b was found tood when the ctorily when the two engines were separated a distance of 6 miles. Thi: equipment is to be tried out by a Jarge Southwestern road before rep r i resentatives of the Railway As “Now,"” Smith asked, “why is the tion's radio committee. d constructed like a wire mesh? Why not make it a small plate? It Extends Program. e RADIO’S BEST OFFERINGS WLS. Chi i : TONIGHT eve o'clock and Musical program by Maj. the following Edward Bowes and the “Capi- ST tol Family” direct from Capi- L tol Theater, New York Cit \WCAP, and other stations continuing until 2 morning, Central stand station has been sign lock on Tuesday n will be provided by a . the “Lullaby Boys, nd Glenn, and other features. WLS hopes to reach Pa Coast Victor Herbert program by listeners with this program WBAL Concert Orch WBAIL Baltimore, 6:3 One of the things that handicapped | | auainted with the g Better [} ather | | Therefore, the |a way as to let enou; s 11 es or audio frequencies Ivised him that | (megative | flowed from the in- | 33,000,000 Papers Daily. 7:30 o'clock DECEMBER 6, 1925—PART 1. John Smith and His Radio BY FREDERICK C. RUSSELL I | | car awners throughout the world have followed John Smith in his daily | & | motoring—and have benefited thereby. and is willing that his fellow fans should be amused and profit by his evening experiences. Smith has a faculty for *finding out things.” so it will pay radio devotecs to follow him in The Sunday Star cach Now he has taken up radio, | seems it wouldn't be very eflicient be- | use of its sievelike construction,” You will have to become better “If the grid were thick and imperviou: it would block all the electrons nor mally shooting off the heated filament and none of these electrons could pos- | ibly reach the plate. Why should they reach the plate asked, being absolutely frank about | his_ignoranc to the fundamental | 5 1 “They mpu ach the plate before any plate ent can flow.” I ex- plained. “You must have plate cur- rent flowing if the tube is to deliver an output. The variations in grid potential control the plate current id must work in su electrons flow ny get o the traflic so | 1 the plate | @ tube unless there | trons from the fila- No current can flow fr to the filament of is a path of | ment to the plate, so the wrid ord to be a stumbling block | el which pop off the filament |and are rttracted 1o the plate form the final connection to close the plate cur rent circuit. In order that this cur rent should vary, or pulsate, | t i necessary to control it v. That is the grid’s job. It must prevent the plate current from run-| ning wild or from being stopped al- | | to according. { £rid permits a small cause to | produce a large effect. The frequen- | The | t this stage of the process was | S it WS K IR, | L —— | VOLUME WITH TONE QUALITY ! | The SAAI: SPSPEAKER | with the Bakelite bell | THE Saal speaker has a bell of gen- uine Bakelite which other speakers are now rapidly adopt- ing. Builtfor perma- cies, or potential va the grid are compa they control the comparatively current. of the tel, of the operation of lend of the line, relay buzzer n a telegraph office. The click operated that resembles. an is brought ions, applied to tively weak, but strong. “The grid works on the The action is just like ple. It is charged alterna posi- | I tively and. negatively | s sition where it can current circuit values, or variations, the change over, You can re: that much of the success of this proc- ess depends upon the : plied to the grid and plate as well as | to the volt It is necessa ing at thel Otherwise election traffic suffe Next Week, No. 4. aph sounder in the railroad station is not the direct result a key at the other The current to oper- late the sounder in the station is pro- |duced by a local battery. | key o | When the at a distant station electric into action. Its | armature is closed when the key and current are closed. when the current is not closed. - | then, the relay armature itself makes [ and Soft. 1 suggested. |and breaks the local circuit which is | (Copyright by the Ullman Feature Service.) r % Radio A spring opens it Now' powerful enough to oferate a sounder. IS.OOO-Mile Walk Made on Wager. That clicks off the messag princi and is in a y ontrol the plate | c E result so that the original | I > in April re not lost in |t rie k in N adily see | DUring the Winter the G the Pacific coast, and oo | turn walk potentials ap- | [T WK applied to the filament. | < to get all three wor In the theatrical professi stition that a 1z will often re > first ni ubes have just liles to the Pa of a banter make in the Spring. They most effi point. | long been a Open Evenings 403 11th St. N.W. Continuing the Great Removal Sale! For Monday and Tuesday “Brandes” Phones Superior Matched Tone $9.59 New! Type Horn Adjustable $°7.95 “Eveready” and Columbia Radio Corporation “Exide” Storage Battery 6-Volt $Q.95 Fully Tubes UV-201A $1 fi Genuine Every One Guaranteed Tested on Weston Meters Charged Freshman Masterpiece 5-Tube Set New Model $39§ Sloping Cabinet Eveready B Batteries $9.45 45-Volt Large Size Atwater Kent “Charger” nent service—costs little more than a ults obtained from broadcasting the | i P "l' 7\\ b Mal rogram by Weber Male Quartet, WMCA, 8 o'clock Victrola With and’s music, has, since the comple.| The 2100 more or less daily news | tion of his annual tour through the |Paper in the t ates fiss jLia 2 : proximately 33,000,000 copies daily, | West. become one of radio's firmest | 0rqinct' G ¥lazese information. In ad- | friends. During the tour, he said, the | i h | iaudiences were composed RADIO 816 F St. N.W. or EVENINGS Rejuvenate Your Tubes stances these S1 fuil to respond e ‘make. We g like Tiew or you pay us noth- $10.00 Brandes Loud Speaker $4.99 Solid Mahogany Cabinets 1$2.29 1$2.99 1$3.39 is the time to dress the old set up 100-Amp. Storage A Battery Rubber e $£9.99 Genuine RCA Tubes UX-201A Only $1.59 New Remler $3.69 A Xmas Radio Offer You Can’t Resist! FAMOUS CROSLEY Now -h tube tested in Jewel machine. t Line Condensers Complete Tube, Bat- ies and Headphones. “PERPETULE” Edison Element 100 Volts, Regularly $25 “B” Batteries Unconditionally Guaranteed Last a Lifetime $18.9 A Splendid Investment “We Can Make Any Radio Work” rlfuu'll qx_niklft?fls fo Studebaker! . Power Uumbimu_-fiii‘:‘ i tive brethren, who proved to be Lap-|bhand.” the further instructions being and Concert by Bernhard Levi- tow’s Hotel Commodore Or- chestra, WY, 8:15 o'clock. dition to the 2,100 dailles there largely of 15,000 weekly (L i ety o] | something - life monthly, monthly and q periodicals issuing other millions each { publication day. Program from Holy Cross College, Worcester, WNAC, 8 o'clock. A Human SOS. ] : —e When New York officials recently | rehended a foreign vagrant whose Band Wanted at Funeral. they could not undersiand.| \vhen Lorenz lerter recently died e ; of (fle]w al linguists. | in Denver, he left instructions in his “Atwater Kent Radio Hour, they 1 some of his countrymen | yill that he be buried with simple cere SetaE > personal Several of his na-|sion be accompanied Bei Sarmedis ablone cello artist. WCAP, and other stations, 9:15 to 10: ' A landers, came to his rescue and he | that there be no ostentation was released. This might become a |burial rites, other than that dangerous practice, as some indi was ordered cremated bout the His body He Had a Wonderful Set Until He Heard the New WORKRITE SUPER POWE NEUTRODYN Last week we told you about a super power Neutrodyne Hazeltine Neutrodyne and the Creel Wiring System. We delivered one of these sets to Mr. Frank Hodge, of the American Radio Service, for test purposes. Mr. Hodge called in his neighbor to hear the set. The following letter tells the story: based on the Creel Bros., City. Gentlemen: I was the proud possessor of an —— —— model set until I heard one of your new Workrite sets last night. When I came in your set was working loud and clear. I noticed the dial setting on 60, where local comes in on my set, and said, “Local has an unusually good program on tonight.”” When the announcer gave the call letters as KOA, Denver, and nothing else than a telephone receiver hook being used as an antenna, I knew I had a radio set for sale. ‘ 1 had the Workrite tried out on my antenna. Of the 46 stations that we received, there was not one on which we did not have to cut down the volume. Your selectivity is in a class by itself, and. of course, I can not get the low wave length stations that your machine picks up and separates 30 easily. 1 thoZghr I had the finest radio set in the world, but it is a back number now. If you know of anyone who wants an please have them get in touch with me. Yours very truly, (Signed) HENRY M. HOKE, 1520 E St. S.E. American Radio Service delivered Mr. Hoke's new Workrite on Thursday evening. Yesterday Mr. Hoke said: T was pleased with the set when I first heard it. I am tickled pink, now.” We announce opening of a Demonstrating and Retail Studio at our salesrooms— 1811-17 14th St. N. W. Open every evening for demonstration from 8 to 11. Pacific Coast demonstrations on favorable nights, 12 midnight to 1 a.m. CREEL BROS. ' Exclusive Distributors for D. C., Maryland and Virginia. Dealers Are Requested to Write. Potomac 473 1811-17 14th Street N.W. = | cheap speaker. $25 Distributed by i\ National Electrical Supply Co. 1328 New York Ave. N.W. H. G. SAAL COMPANY CROSLEY 2 TUBE 51 Hea: d stant stations on the Toud speaker with this most Crosleys — 0 in use. Splendid results with any make of tubes. Mahogany new low price At authorised Crosley dealers Doubleday-Hill Electric Co. 315 12th St. N.W. Main 1680 Wholesale Diztributor Z Tcmiodjne Deresnadyne ADLER-ROYAL MURDOCK 30c Fresh Stock Attachment An Ideal Xmas Gift Charges A and B Battery $Q.95 the Noiseless Battery Changer can be used while the set is in operation Balkite Trickle Charger For continuous charging. Rate about .5 amperes. Converts your “A” bat- tery into a permanent, unit that supplies full * st all tites from the light socket. Balkite"B”Replaces “B"batteries e B s rent from thelight socket. With its use your'B” current supplyisalways exactly_what is juired. Has no bulbs. Fits practically all sets of 5 i e f s cel comparcment, Price $35 e R n‘- Balkite"B”II The syme ropuls; ek St o i wil i an: ; D408 tubes or more. Price $55 BALKITE BATTERY CHARGER 715 12th . St. N.W. * BALKITE TRICKLE CHARGER * ALL BALEITE RADIO POWER UNITS AR TESTED AN LisTED. The Balkite BatteryCharger for Radio “A” 6-volt bat- teries is entirely noiseless in operation. Its advantages are obvious. It can be used while the radio set isin oper- ation. If your battery should be low you merely turnon the charger and operate the set. It cannot short-cir- cuit,discharge, or damage the battery by overcharging. Current consumption about }; cent per hour. Operates from 110-120 AC 60 cycle current. Special model for 50 cycles. Also for 25-40 cycles with 1.5 ampere charging rate. Price $1950 No bulbs—Permanent Like all other Balkite Radio Power Units, the Balkite Battery Charger is a permanent piece of equipment, has no bulbs, nothing to replace, break, or get out of order, and requires no other attention than the infrequent addition of water. Balkite Radio Power Units are the ideal power supply for any radio set. They provide uniform constant current to both the “A” and “B” circuits. The other three units are described to the left. Whatever type of set you own, Balkite Radio Power Units will serve it. Sold by leading radio dealers everywhere Manufactured by FANSTEEL PRODUCTS COMPANY, Inc. North Chicago, Illinois FANSTEEL Balkite Radio PowerUnits BALKITE“B” * BALKITE4B"D A8 STANDARD BY THE UNDERWAITERS” LABORATOMIES ‘Wholesale Distributor Doubleday-Hill Electric Co. “Tungar” Bulb $18.00 Reg.