Evening Star Newspaper, October 25, 1925, Page 39

RADIO ROBS ARCTIC OF MANY TERRORS MacMillan Aide Says Life of Explorer in Far North Is Made Easier. By the Associated Press. CHICAGO, October 24.—An Arctic explorer’s life “ain’t what it used to Py With this bald statement, Lieut Jugene F. McDonald of the ed his six-month o in the Far North ¢ office to Comdr. Don- 1d MacMillan of the MacMillan Arctic expedition, upon his arrival home. Ar. McDonald, president of Zenith Radio Corporation here, newspaper interviewers that the mance of the explorer’s life in the Far North is gone, “simply done,” because “radio bas taken away the thrill and veril, supplemented by worry and lack of communication,” heretofore experi enced by all who visited the un- traveled wastes. The expedition docked in Boston last week, and the members have scattered to their homes, the Midwest drawing a goodly repr ntation With Mr. McDonald Gray, , junior radio officer of ihe "Peary Paul J. McGee, chief vadio operator of the expedition, who succeeded in perfecting two-way rg tim 1 an inter cvreated by Press fron Chicago to Etah, Greenland, roughly, 3.000- miles. m this section nclude Dr. W of the Uni versity of Michigan, whose work for the. National Soclety, ~ponsors of un equaled. The accomplishments of dition were summarized by Mr. Donald in three sentences “The charting of part 2,000,000 square miles of the viored region, northeast of ind southwest of Greenland by ernment airplanes, which al tempe: fore penet ‘the told came Harold the expedition, is expe Me- Gov guined of the Nutional Gi representatives e scientific data birds, flowers in and specimens of and wildlife. 3. The proof that low wave trans. mission can successfully oper: daylight as well as n T of magnetic or alr conditions These accomplishmer Mr. Me Donald say when ana d, will give the United my research and knowledge than any pievious expedition or any other will ever accomplish. vo- | ! evening experiences. No. 36: Economizing on Current. Always interested in economy, Smith began to cast about for ways and means of saving current while operat- ing his radio set. Up to this point he had not been troubled greatly with current cost, but he attributed this to the fact that he had an economical | set. Furthermore, he had always been | as interested in the science of radio [ as in the entertainment which it pro- vided. Much of the time he was sim- rving to understand it rather n actually use it. But reception was gradually be. coming a lttle poorer, and I had warned him that he soon would need new batteries. Consequently, I found him one night trying to get his pet | statton with the filament rheostat turned down as low as possible. I questioned why he was trying to save current at the flaments before “onsidering more important points. “There are reasons why it pays to keep the filament current consump- tion as low as possible,’ I told him, “but it hasn’t much to do with cur rent conservation as radio enthusiasts know it. What you are doing is to ‘ave a little current from the storage attery. Of course, the less current ou drain from the ‘A’ battery the ess you will have to use the bhattery | -harger. This will save a little on the househald electric bill. But it's ondary to saving on the ‘B’ batter: irrent. This will become clear if you will picture the difference between the two vpes of batteries and the work they ave required to do. The ‘A’ batter: merely heats the filament of the tube; The filament does not require much voltage, but requires that this voltage be continued for long periods. For convenience, therefore, you have a storage battery, otherwise you would be buying new ‘A’ batteries all the while, except where dry cells and dry- cell tubes are used.” Ohm’s Law Considered. “I'm not so green on_this subject,” Smith volunteered. “Voltage is the electrical equivalent of pressure in the case of w: Varying the size of water pipe esponds to vary ing the resistunce in an electrical circuit. If no change is made in the of the pipe, and if you increase pressure you increase the rate at 1 the water will flow. It ought to he same with electricity.” It i I said. “That is a variation of Ohm'’s law. And it leads vou to a clear understanding of why you should save ‘B’ current by keeping the volt- age as low as possible. The rheostats { regulate the voltage applied to the { plate of the tube by introducing a re- | sistance, and so the current flow, or | amperage, also is controlled. If 'thc wh THE SUNDAY John Smith and His Radio BY FREDERIC! Car owners throughout the world have $.lowed John Smith in his dally motoring-—and have benefited thercby. Now he has taken up radio, and is willing that his felbw fans should b: amused and profit by his Smith has a faculty for “finding out things.” so | it will pay radio devotees to follow him in The Sunday Star each week. K C RUSSELL resistance were constant you can see that the current flow, or amperage, would increase in direct proportion to the voltage, just as water would flow through your pipe faster if you in- creased the pressure. The varylng resistance, however, changes the situ- ation a little, though it proves even more conclusively that the more volt- age you apply to the plate the greater the ra f current consumption.” “How's that?” Smith asked. The Water Analogy Again. The explanation again lies in the water analogy,” 1 explained. “As you swing the rheostat control up to its maximum point you reduce its re- sistance and send all the ‘B’ battery voltage to the tubes. In this case you not only increase the voltage, but de- crease the resistance. Of course, much more current flows. It is like increas. ing the water pressure and then en- larging the pipe. You empty out the water supply just that much quicker. “If you increasé plate voltage with one type of tube from 40 volts to 80 the consumption of plate current will be nearly four times as great. Of course, the current consumption is in milliamperes, but using several tubes and working hour after hour the cur- rent consumption at the plate amounts to a great deal in a comparatively short time. nother important point to con sider is that Ohm’'s law works both ways. If the current flow is at a high rate the pressure, or voltage, drops in proportion, with certain allowances for the resistance. And since the dry butteries simply st id do not in: rease pressure automatically, the bat- s soon run down. That is why eption starts at a high peak with new ‘B’ batteries and then grgdually gets poorer and poorer. Toward the end you may decide to be very gen erous with the current, but you are then shy of voltage, and it is the voltage applied to the plate that de- termines the audibility. ou can save current by cutting out an audio amplifier tube when the station is coming in too loud, and, of course, you can always spare hoth kinds of current by cutting down as and particularly by I should think that the different types of tubes would make a great difference in.such matters as recep- uun1 and current consumption,” Smith id. “They make so much difference,” T admitted, “that we'll talk about them just as soon as we have listened to this concert. Let us not forget how to enjoy radio." Next week, Tubes. (Copyright by the Ullman Feature Service.) No. 37: Meeting the STAR, WASHINGTON, D. ¢, sure its adoption by the several coun- tries, In its recommendation to the League the framers of the new regula- tions point out that broadcasting is e ceedingly important both nationally and internationally, but that it will net develop unless these several go ernments take steps to enforce neces. sury regulations on the broadcaster and secure the co-operation of the commercial and military communica tion services. New stations secking broadcast channels, it is understood, as over on this side of the Atlantic, will have to select one of the shorter wavelengths between 200 which is not aiready crowded. In the recent tests it is understood that the fans of the countries were urged to listen in on as many stations as they could, and report any inte ence heard. How far they co-ope is not vet known, but as it was undertaken in their interest, it i lieved generous returns will be fil 1 be. Air Heroes to Broadcast. Comdrs. Rogers, Rosendah! and Byrd, three nav: r officers, who re cently took part in spectacular will address the radio fans adcasting esday. Secretary: of the Wilbur will introduce these distinguished flyers from the studio of WCAP, which will transmit over long-distance wires to the stations broadcasting. (WCAP is not on the air that night) These talks will be the first the three offi cers have made directly to the public, and as far as is known, it will be the first time they have appeared before the microphone. Comdr. John Rodge: Hawalian flight and world's dist flight record over| These water, will tell some of his ex-|stations periences on the transpac flight | Boston; WW.I, Detroit: W¢ and of his trials aflgat in his | WSAIL Cincinnati; Woc giant seaplane for nine _days.|and perhaps several Lieut. Comdr. Charles 1. Rosen-|The hool dahl, senior surviving officer of the | A. T. . Co. for the airship Shenandoah, will speak of the | t asion of its 150th last cruise of that illfated craft. “Fly Twenty-three othe ing in the Arctic Regions with MacMillan _Expedition” will be the [ by broadeastin subject of the address by Comdr. R. coast to coust: W Byrn, senior 1 flicer in charge of Admiral 1 the three chicf of operati DORA MINOVICH, a recital tati cast studio of last WRC. hero of the slder of the tal s be WIEAT New York special er, W, Type C-301A C-299 - C-300 cu:c12 In the Orange ana Blue Carton Price $€).50 each the | below, also will cooperate Na ew York Pianist Gives Recital broadcast WEFE OCTOBER 29, Youthful concert pianist, who broad- night from the 1925—PART St. Paul; speaker, Maj. Gen. John A.|W. Lejeune, Marine Corps. WBAP, Fort Worth; speaker, Mr. : Ousley. KLDS, Independen: speaker, Representative liarry -Hawes! [ Phelps. KOB, St KTCL, Seattle; speaker, Representa- | Mexico: speaker, tive John F. Mill KFI, Los An-|vant, U, . eles; speaker, Representative Walter | speaker, T 3 n Willia 3 WGY, Schenec ;| U. 8. M>C. A, Dallas; spe ¢ R. Lunn. WGBS, AL Wiley, U New Orleans; speaker, T. Cluverfus, U. 8. N, WGBS to Ceiebrate Celebrating its first WGBS will broadeast a Morris. KSL, Salt Lake meler, U N. Ark.: speaker, Re: tur irthday. inives Joseptha speaker, Capt. € ker KDKA, Pittsburgh; R. Miller. WSB, At Rear Admiral Samuel U. 8. KOA, Den Lvans O. Ames, prinfigeld, s.; speaker, Lieut. Comdr. H. A. night, sponsored by the Americ Soclety of Composers, Authors Publishers. The program will U. 8. N. WOC, Davenport,|given for shut-in war veterans, ker, Mr. George M. Weich. |also members of the th Chicago; speaker, Comdr. | fession who are ill at Saranac WLW, Cincinnati; |In addition to scores of Broadwy Jacob Klein, jr.|lebrities—stage and screen ke Lieut composers and others KYW, T. Bidwell. speaker, Comdr. nnati; spe Find out just what better City; speaker, Rear Admiral Henry J. Ziege- KTHS, Hot Springs, | Authors and | 7. W. 5 New “Annati Ker ala enter- | h tainment from the Friars' Club to-|§ o'clock, « and ‘OW can you expect tired mus- cles to respond to nerves that are just as weary? Be fair with your- self. Invest in a Foster Ideal Spring. Sleep upon upright spiral springs. support will do to make you your- self feel better. Give your tired mind and body a chance for real rest and relaxation. There is more genuine health, more comfort and greater sleep enjoyment built into a Foster Ideal Spring than you have ever believed existed. your local furniture dealer to show 59 et participants will include groups of the American Society of Composers, iblishiers, of the Friars, Women's W Relie N the and of the S The master evemng will be of the Amer Author Follies” Iyricist: Sil composer, and Dafles WGBS d 1o pa onies. The program, be given on the stage of the 1l of the . will comn te and t Hein, e Paskman, 4 M. Coha Iso s er h will nque ence rector of ry nti 1| night. Members of th be fwho intend to tuke part w nd | George win, Rudolf Fs Phillip Al Jolson, Youmans, Ravmond Hubbell, ner Ji Harry Archer, Williar Jerome, Alfred G. Robyn and a hos spine Ask CUBA ACCEPTS NEW PLAN| you this remarkable bedspring. RADIO GOSSIP AND NEWS FOR CONTROL OF RADIO | Creates New Federal Department of Communications to Include Wireless Stations. Cuba has created a department of communications which will handle matters pertaining to radio, telegra phy, posts, railway, ship and air lines, Minister Crowder reports to the Commerce Department. I appears to be under the adm of the director of tel he government of ( radio e ing operated not for gain, is permitted to by ried op in private hands, Thirty-six broadeasting stations are in operation among the largest is that owned by the telephone company, PWX. An- other is operated by the tobacco mo- nopoly. There are but ten with 100 or more watts power, vet many fans in the States are famiiiar with these Cuben calls, which begin with a num ber, like our amateur ca - ex : “When you coo uckoo, y¢ 2 in h Tuinic ay be dent in organizin under one head. Altho; 1 the matter ha8 been discussed here in the general Zovernmental department reorganiza tlon, nothing has vet been done to- ward a unification of the communica- tion services in the States. DEBATE OVER RADIO. Railroad . Men and Farm Leaders to Take Part. Two prominent railroad men and two outstanding farm leaders will de- bate on the question whether the Interstate Commerce Commission ~hould grant the 5 per cent increase freight rates demanded by the stern railroads over WLS, Chicago, I'riday night. The argume for the vailroads will be made by H. Byram, long president of the Chic Milwaukee and St. Paul Railros Samuel O. Dunn, editor of . Age. The opposition to the propo: increase will be presented by O, Bradfute, president of the American Farm Bureau Federation, and L. J. Taber, master of the National Grange, Columbus, Ohio. Each speaker will have 10 minutes to present his ease 1nd 3 minutes for rebuttal. The railroads will endeavor to show that the increase is essential to the continuance and development of quate transportation for agric d_commerce, while the f: - s will contend that agriculture can. not stand the burden and should not be asked to do so. ations stles in the air usually cost a lot D up. RADIO REPAIRS Low Prices—High Quality GRIMM ermont A to 1323 N.W. Per Week The broadcasting situation in Eu- rope has become so difficult to handle and interference was so great with each country authorizing broadcast- ing on such wave lengths as it saw fit, that an international organization to regulate broadcasting has been ef- fected. The organization is known as the International Radiophone Union The situation was presented to the League of XNations last Spring; a s‘andardized scheme was later con- idered by a conference between dele- most of the European gov nd tested out practically Although the results »d, it is understood that successful and that governments are co operating toward decreasing _inter- i ference which was fast becoming un- bearable. Approximately 120 stations took part. One of the first steps taken was the standardizing of testing appar- atus and the setting of all transmit- s on scheduled wave channels, | somewhat after the method employed { here. All waves within the band from 1200 to 600 meters wer gned sta- tions in the order of their impor ance, although a certain priority was accorded those long established. Cor | side jon w first given to station: {of international import, so that good channels might be reserved for the long-distance broadc: 3 sta- tions of 400 watts or over within 1.500 AT ATWATER KENT RADIO ROBINSON’S MUSIC STORE, Ine. 1306 G 8t.__________Mal | gates fre ents recently. not yet repol the tests were most of the 2231-5634 i I| Newest Balloon i Tire Repair | Equipment af Our | Shop Prompt repairs to all tires. ount to the trade. Herriman “Your Tire Man” 1524 L St. { element A For Other Points Of Tube Superiority De Forest scores a, the greatest tube tf invention. miles of each other were permitted to operate on the same wave length. Each country was guaranteed at least one exciusive broadcast channel in the band betwecen 300 and 500 meters; the larger the country and the greater the number of stations, the more channels allowed As In the States, the separation be- tween wave channels was set 10 kllocyeles. Although engineers point- ed out that 20-kilocycle separ: |would be far better—it reduced | possible number of ¢ number now ne |the continuation of |existing stations. The presence harmonics and the deviation of transmitter of more than one-third of a me r from its assigned wavelength will it be tolerated. No new stations using the arc or spark system will be pertmitted, If the final regulations are adopted, and ships are forbldden to operate on channels between 300 and 400 meters when near the coast lines. Power allocated an S - stricted and they will not be permitted to operate on broadcast wavelengths during the broadcasting hour The final plan has been transmitted to the League of Nations committee on_communications in an effort to in { Call For wE Loan Another, Recharge and Return | Your Radio Battery, | *1.50 Stanton Battery Service the ry to insure broadcasting of 403 C St. N.E. Lincoln 9309-J Onen Evenines—Sunday | Dr. Lee De Forest, inventor of thethree tube, the mainspringof radio. Tube Triumph est Craftsmen in—this time with ea since his original tion ar below | by | Since 1915— Standard for all sets In Millions of American Homes— where radio lends enchantment to every home- spent hour—owners of receiving sets are exercis- ing more and more care in the selection of their radio tubes. > Fhng wide the portals of your home to modern radio. Buy a receiver of quality. Then insure tone- purity and long distance reception by inserting a Cunningham Radio Tube in everv socket. - il & Home Office 12 SECOND STREET CHICAGO SAN FRANCISCO . W Balkite'B> Balkite “B" replaces “B” batteries of all rypes and supplies uniform constant plate current from the light socket. Once connected to your set and adjusted to #ts requirements, it needs no further adjustment, and can be put in operation at any time by simply turning on the current. 3 Like all other Balkite Radio Power Units Balkite 'B'hmfirdymhopmdm.mdhapemr nent piece of equipment with no bulbe or moving parts, nothing to break, replace or get out of order. This newmodel fits anyset requiring not more than Foster Bros. Mfg. Co., Utica, Makers of Fine Bedsprings since 1871 Baltimore Distributors: Baltimore Spring Bed Co. 754 to 758 West Pratt Street Super-Heterodyne ~Radiola28 NY. IGHT tubes—and the last onc the new dry battery power tube! Yet the Radiola 28, in beau- tiful desk type cabi- net. With eight Ra- diotrons. $260. our finger tip. RCA Loudspeaker 2 vrhole delicate mechanism—sturdy and simple—is built into 2 safely scaled catacomb—and operated by a single control. This is putting the world litcrally ac 20 milliamperes at 90 volts—practically all sets of 5 tubes or less,andmost 6 tube sets. Fits in your present dry cell compartment. Current cost about 1/10c per hour. Balkite “B” II The same Pays for This 1 CROSLEY 3-Tube Set Isolantite Base —reduces electricallosses1/8 to 1/30 those of porcel meul, rubber and bakeli 4 Uniformity in DeForest < quality 3 New Shock-Absorber Package - cushioned 0 the fine adjustments of the tube cannot be distutbed. 4 Chemical Exhuuse A s s e Ses and in e fehihe rbe e All tubes $3 The new idea is a specific tube fot every socket. A specialist at every signalling and amplitying post. Whatever the gmcziun—-xegenen(ivc detector, non-regenerative detector, oscillating r.f. amplifier, non-oscillating r.f. amplifier, straij !f,y! c““del; push-pull or spec::l lov&er e amplifying work—there is a scientifically de- model as offered - ’ sigaed tube for its most exacting tequirements. ket your, Seme ae Buikice * 5. cxcepe withany radio receiv- By this bl::(eword;yth ach fie—zefi;‘gfi Forest and e o o e o 835 es tubes out e ji -all-trades class Cuarrenteapacity. . and insures d‘fi“‘}“'fiefi"“ reception, greater 90“-;.: range and longer tube life-ar prices approxi- mating competitive, non-specialist tubes. Consuls i oo e P Bele e g (tubes) for your set.. N DE FOREST RADIO CO., Jersey City, N. Jo DE FOREST AUDIONS The Original Tubes—and the Best Model 100, pictured above. Cone type, -achieving new clar- iwy and far wider tone range. Can be used The newRadiola 28 carries the far-famed selectiv- ity of the'‘Super-Heterodyne”"a step still furcher. It has great volume of tone. It is more sensitive than ever; in getting distance. And with all— most impertant—it is more perfect than cver in - quality of tone, Use it either with dry batterics, which fit inside the case—or with the new RCA. Loudspeaker Model 104 which replaces 4// bat- teries with the 60 cycle, 110 voltlighting circuit. : ® MADE BY THE MAKERS OF RADIOTRONS L] mml CHICAGO . 1 SAN FRANCISCO FANSTEEL PRODUCTS CO., Inc., North Chicago, IIL Balkite Radio PowerUnits I:ub-'.': ;I::}::el, s Ru:y to Operate, 4 HAVERFORD Radio jon 522 10th St. N.W. COMPLETE WITH and Aecrial CYCLE SALES CO. ...'Open Evenings