Evening Star Newspaper, July 26, 1925, Page 26

SEASON OF STATIC FINE FOR REPAIRS Radio Fan Will Find Summer Ideal Time for Improv- ing Set. BY CARL H. BUTMAN. Now that we are in the midst of the static season, when radio reception, particularly distant reception, is at its worst, it is a good time to overhaul and improve the set. If your recefver is one of those ultra-perfect sets, which forms an artistic piece of furni- ture, you may not want to do any- thing to it. But the writer's set is or was a hodgepodge affair, including a two- tube receiver and a two-stage audio amplifier. This apparatus, with its accessories of batteries and phones on small table, and an adjacent phono- raph used as & loud speaker, took up considerable room. At best it was a messy sort of layout and brought con- stant criticism from the orderly house- wife. So one afternoon the writer, ying aside his typewriter, took his vers, screwdriver ‘and other tools in and and completely reassembled his set Now it forms a single and not unattractive unit of the home furnish- ings. T have read and written so much about the activities of other fans that I am disposed, for a change, to record my own accomplishments, with & hope that it may aid some readers to gain a better standing in their own homes. Found Home for Set. Our talking machine, although a good one, set in a mahogany case, hasn't been used for over a year; nef- ther has the old mahogany music cabi- net on which it sits, qxcept for the storage of clippings, paper, penciis and other junk. Taking all this stuft out, 1 measured up the radio receiver case to find it was a quarter of an inch wider than the Inside of the cabinet. It had to be taken out. Removing the top shelf and third shelves of the cabi- net, two holes were bored in the back for ground, aerial and loud speaker connections. At the back of the sec- ond shelf the dry A and B batterles for the receiver were installed. In front of them the receiver on its panel was placed and secured by four small screws to the edges of the cabinet. By reversing the shelf the curved front edge left plenty of room in the back for the connecting wires, leads, etc. On the fourth shelf from the top the amplifier unit was installed in a simi. lar manner, except that, as its case was smaller, it did not have to be re- moved. This unit was connected with its batteries, all located on the rear of the shelf out of sight. 3 I used different colored wires to avoid confusion ih wirlng and locating future trouble. For example, the A batteries are connected by red wires, the B's by blue and the input wires from the receiver to the amplifier are white. The ground, running to an mdjacent radiator, is a piece of slate- covered wire, while the aerial connec- tion is heavily insulated wire. It leads to a flat covered connection made for use under a window sash. Incidentally, the window is close by and scarcely any wiring is visible. Set Out of Sight. From the amplifier the cord to the loud-speaking attachment runs out one of the holes in the back of the cabinet to the phonograph above. The whole outfit is fairly decent looking, When closed it is nothing but & phono- graph sitting on a cabinet, yet the radio outfit ready for instant use is inside. It is out of the way, and clean. No more broken wires or dis- connections due to dusting or moving are anticipated. To operate, open the cabinet door and tune in. Open the doors to the phonograph sound box when you get a station. By discon- necting the leads of the loud speaker and connecting in a pair of phones, kept in the cabinet drawer, one can operate without disturbing the rest of the family. Fortunately, I didn’t injure the cab- inet and, of course, the phonograph can still be used—the loud-speaking attachment is disconnected and the reproducing diaphram of the phono- graph attached in about three seconds. Some fans, who have anything suit- able, should try combining your ap- paratus, if for no other reason than to see what a hit it will make with the family to get unsightly, un- matched apparatus, vari-colered bat- teries, etc., in one place and out of sight. One of my friends {nstalled his equipment on a shelf of a sectional bookcase, which is equally neat and keeps his set clean; his loud speaker stands on the top shelf. Others, more skilled in cabinet making than I, have built cabinets or fitted their apparatus and accessories into standard cabinet All methods tend to improve the liv- ing room, release tables and other pleces of furniture for other uses and make for happiness in the home. A neighbor, who uses wet batteries, bored a hole in his porch floor and ran wires below to a shelf where he keeps his batteries without endangering his furniture, carpet or floor. While working on my set I elevated and tightened my aerial and tested out batteries, connections, etc., which improved reception materially. Local Radio Entertainment Sunday, July 26, 1925. NAA—Naval Radio Station, Radlo, Va. (434.5 Meters). 10:05 a.m. and 10:05 p.m.—Weather reports. WCAP—Chesapeake & Potomac Tel- ephone Co. (468.5 Meters). 11 a.m.—Service at First Church of Christ Scientist, Washington. First reader, Elmer I. Baldwin: second reader, Mrs. Gertrude K. Fullaway. Subject of lesson-sermon, “Truth.” 4 p.m.—Outdoor service at the Peace Cross, Washington Cathedral of the Episcopal Church. Rev. Anson Phelps Stokes, Canon of Washington, will preach the sermon. 6:20 to 8:15 p.m.—Musical program by “Roxie and His Gang” from Capitol Theater. 8:15 to 9:15 p.m.—Goldman Band concert, Edwin Franko Goldman, con. ductor, from Hall of Fame, New York University campus, New York ecity. Soloist: Waino Kauppi, cornetist. Early Program Tomorrow. 6:45 to 7:45 a.m.—Morning “setting- up” exercises by the Metropolitan Life Insurance Co., direct from the Metro- politan Tower, 1 Madison avenue, New York city. ‘WRC—Radio Corporation of America (4685 Meters). Silent. Early Program Tomorrow. % 9 to 10 a.m.—Woman's hour, broad- cast jointly with station WJZ from New York. 12 noon—Organ recital from the First Congregational Church. 1 p.m—Sidney Seidenman’s Shore- ham Hotel Orchestra, broadcast from the Shoreham Hotel. Goes to CIIHDmi_I. Maj. Horace S. Villars, Army Med- {cal Corps, has been relieved .from duty at Walter Reed General Hos pital,” this city, and ordered to Fort McDowell, Calif., for duty. 8:00—Now York: Children's hour, stories 00—Rossville: Watchtower Orchest: . 9:20—hlladelphia: " Servives of Arch Stroe Rowville:' I, Marion Brown. sopran cinnati: Sunday schoo) 9:30—Schenectady Vs of Roseville 9:40—New York: Chimes 1 Philadeiphi s of Service of St. Thomas' Chapel service conducted by ostop: Service from Cathedral of St :10—L. Marion Brown, sop o 80—Detrolt: Service of Ceatral M- Er ¢ Chicago: Uncle Walt_reads Detrolt: icago Lousavilie ervices by Rev. C. A. I 45—Chicago: 00—Minneapolis: Service of Westminst 0 Sacred dinner concert : Organ recital from Hot Springs: Service of Central 8 TO 9 AM. eatral M. E. Church 11 AM. TO 12 NOON. 00—Cincinnati; Servico of Church of Covenant . Servicos at St Faul's Enfscopal Cathe Service of Second Presbyterian Church g umphrey - Concert from Chicago Theater 12 NOON TO 1 Le v Methodist Church THE SUNDAY STAR, WASHINGTON, D. C, JULY 26, 1925—PART 1 LONG RANGE RADIO ENT ERTAINME}“T SUNDAY, JULY 26, 1925 Programs of Distant Stations Scheduled for Eastern Standard Time Meters. Miles. Stations. X 455 and musie SWIZ ® TO 10 AM. G Service of First’ Reformed Church Bjble lecture by Judge Rutherford Bereices of Holy® Trinity Church - vices of Holy Trinity Chisred 3 9:45—Pittsburgh: Service of Point Breeze Presbyterian Churci 10 TO 11 AM. Episcopal Church Rev. R R: Brown . Paul ork: Service af First Church of Christ, Scienti er Orchéstra Cathedral . SS2585 » 9w P.M. Cone coon 4858 *23a 338833 o & 1 T0 2 P.M. 1:00—Chicago: Denver 30—Atlantic ¢ Program for “'shut-ing rvice of St. John's Epi : Seaside Hotel Tric, sac Philadelphia: Bethany Sunday school exercise Sunday radio_forum by Dr. S. W. prograz qo ST :46—Atlantic City: Sermon by Re\'s 3 cred recital Sl 233, &3 BaNGE s E2EEERS EREI2 W. Grafiin.."" w3 s o Neai " 2 TO 3 P.M. 00—New York Davenport - New York: Special unday_concert . Paimer mer Littie” symphony : day hymn’ Sing 2:30—Chicago: Maater artists reeital " . New York: Program from Piccadiily Boston® City 'of Boston Band Orchestra " Theate: concert 2:40—Chicago: Talks by returned missionaries .. 3 TO & P.M. Inter onette nominational services for the kiddies . i pe concert . : Community ‘sarvice: Detroit: Concert by Municipal Bang. . Cleveland: Francisci String Ensemble . Chicago: Radio sing for radio youths ..... 4 TO 5 PM. 4:00—Chie: : Studio concert, vocal and Now Porkc: Roteland Dan Chicago” Clagsioal concert o, oo e Chicago: Radio chapel and Pioneer hour . instrumental s cxonen 5 TO 6 P.M. 5:00—Philadelphi ansas City : inneapol E&(ubumh : ton: 6:00—New York: Hotel McAlpi ansag City: Sunday scl ever-Concort 1rom “Bir Joh 3 rt from o 6:20—"Roxie and his £ang” at Capitol and other stations . 0:30—Chicaro: ‘Organ reciial by Raish Chh‘xo, rnacle Band an 6:45—Philadelphia: Service of Cincinnati: Service of Walnut Hills 7 TO 8 in recital by C. K. s ase ball 6Ta7 i eat ram of classical musle .. % rvice o(.cl':l‘?:.:eb!o! Hjope ]Pre-l:nenm Chureh Fvice of Park Street Coneregationn Churéh Barton ... hoir .. hany Pi irch” sl o, Bawden . LW WDAR CO KA Py Snmt SEane BAL prery 2282 g isco) 'DEcr{ell T RN oo Se333 SEXZR .M. 7:00—Chicago: Service of Little Brown Church in the Vale, with _ ‘choir Setago. B by Chicago Must cago: Program c usici Clevefina: Siiman Concert. Orchase New_York: Program from Steel Pie Bowtl ¥ (dnd WHAF D ston: Casino oy by Eva Rothenbe Murray.” soloist. neert, by 107¢h Reri rch Wilson. 'baritone na Bradiey. sopranc Bible el By B Qicott, Vail Trlo Mlie. Therese Tiad ase ball results in brinct al "B Y w vith ment Band W. M. Anderson " rench ’soprano ra T, - BC S W) Adantic’ Cily, with S I, WGBS @ ° pal leagues BARISRERII0 I DH2UBSEL0RE B30w SOSIBRBIEZS 3355 8 TO 9 P.M. 8:00—Atlantic City: Seaside Hotel Trio and Cincinnati: B Montreal: Travmore Qu Springfieid: Talk on Atlantic City: Hotel Rousville: Sacred music and Bible le o Paul Paniagua. pianist Horace J. Taylor. s ‘ariety program unti ‘oncert by Detroit : Program_from Samuel Shankm: ervice of Central Luth Springfleld: Concert by Idvilic Male 9 TO 1 9:00—Jefterson City: Union religious servic : Church services . Orchestra New York: Godtrey Ludlow 15 tic_Citr: Organ recital Dallas: Service of First Bapti Chicago: WGN 'Singers and 9:15—Chicago: Request program & New Yor, n's Hoffrau "Ord 9:50—Denver: Service of First Church of 10 TO 1 10:00—Los Angeles: Organ recital by Arthu Einelinad Tlassical proet ncini al L Or Servics of Benson Baptist Ch Classical - concert Arlington Hotel Enpein] almer Little s H e hot aifas: Service of Grace M " R i 10:45—Porthand’ Service of First. Proeoyterion Chuceh 11 P.M. TO 12 MIDNIGHT. 11:00—Los Angeles: Musical pry o $an Francisco: Palace Hotel Conceri Los Angeles: Ladies’ Octet and soloi; 11:30—San Francisco: Fairmont Hotel Orchestra 1TO 2 AM. 1:00—Los Angeles: Packard Orchestra and concert with soloist mbassador Orchestra’ ..... Lakewgod Farm Inn Eusembls . . readine: j Orfan recital rom Strand Theater assic ymphony Orchy soloist B [ : organ sel cture i 1505200t ettt B 1oousI SIS 23 LI2RRSANSEIRY o or hur Quartet . o P.M. from Capitol comaonn SR8 oy o S5 . ZERRIS SEERE S A bt 5 Cocomtsmomich N Erssit iy 233 2R3, Christ, 1 P.M, r Blakeley S areh ble. 2aSNEIZIAR Y oo BRES Das@-wl 1 " Orch sts . John Smith and His Radio BY FREDERICK C. RUSSELL Car owners throughout the world have fellowed John Smith in his dally motoring—and have benefited thercby. Now he has taken up radio, and is willing that his fellow fans evening experiences. Smith has o it will pay radio devotees to follow No. 26: Adding to the Set. Smith was struggling through what radio fans recognize as “bad radie ‘weather.” It was only natural that he should look into the possibilities of making the set more useful by enlarg- ing it. A point that he hadn't taker into consideration, however, was that the manufacturer of the set had al- ready considered these points. “You can't add a stage of ‘audio- frequency amplification to your set,” I said, “because that would just re- sult in distortion. You are using two audlio-frequency tubes and two audio- frequency transformers. That's two stages of audio amplification, and they are sufficient.” “But I thought that if I could am- plify some of these faint signals I get, my receiver would be more useful be- cause it would operate just as well when the elements are against it as: when everything is in its favor,” Smith argued. “‘Another stage of amplification would enable you to make some of these faint signals very audible, but unless you want pure noise I wouldn't advise you to try it. You'll be ampli- fyving static, interference, battery and tube noises as well.” Smith, however, was still deter- mined to try additional amplification, but I managed to save him some trouble by suggesting that he start fmproving his son’s crude set, develop- ing it into a portable affair for the car. He agreed that it might not be 0od policy to change the circuit of is high-grade, well built set, for he could never do such skillful soldering, nor lay out the units with such care. Goes Back to First Principles. This took him right back to first principles, but as usual it started him on the road to a better conception of the mystery of radio. The boy's set was so elemental that Smith at once recalled how absurd it was to regard a stage of audio-frequency amplification as the one important way to add to the set. When he examined the one- tube set, he readily saw that adding to a set might mean changing the circuit, tuning the circuits with variable con- densers, installing a grid leak, adding more tubes, adding transformers, sub- stituting better transformers, and so on. Smith had some stock radio units on hand, so that simplified the process of adding to thé small set. ' 'We at first discarded the two-slide tuning coll, which the boy had made himself. ‘We then inserted a variometer in the antenna-ground circuit, and also a variable condenser. Smith recalled that the variometer was merely a fixed cofl with a rotor coil connected in series. The current had to travel through both cofls, and by turning the rotor the inductance could be varied. This enabled Smith to tune for the proper wave length. The variable -condenser, of course, attended to- the matter of capacity. After the current passed ihrough should be amused and profit by his faculty for “finding out things,” so him in The Sunday Star each week. the tuning unit, it was then led to the &rid of the detector tube, with a grid leak and grid condenser placed in be- tween. The filament of the tube was then lighted with a single dry cell, while the phones were connected into the plate circuit along with a 221 volt “B” battery. % We hooked up the recelver and found that it worked fairly well on a local station. But improvement was obviously necessary. Smith - Puzzled About Tubes. “Now how do we add more tubes and amplification?” Smith asked. “It would be simpler to change the circuit, wouldn’t it?” I answered. He hadn't considered reflexing or adding regeneration as improving the set. To him it was always a matter of adding some fixed units, probably because he had seen a neat and com- plete one-stage audio-frequency ampli- fication unit in an accessory store window. The single-circuit, single-tube re. ceiver was soon converted inté a two- circuit regenerative receiver by in- serting a variometer into the plate cir- cuit. It was also necessary to change the wire to the grid, so that it lead from the antenna lead-in instead of from the variometer of the aerfal- ground circuit, and to make a few other changes in accordance with the needs of the circuit. But with these comparatively few changes the set was greatly improved, though very little actually had been added. Now we've got a regenerative re- r that will surely annoy the neighbors, but it {llustrates the way to g0 about adding to a set,” I explained. “By adding principles as well as parts we keep on until we have a set that is highly advanced and, accordingly, highly satisfactory. It is a far cry from adding to the set In the way you proposed.” “Well, anyway,” Smith admitted, “I've added something to my store of radiology. That’s what counts!” Next week, No. 27: Circuiting the Circuits. (Qupyright, 1925 by the Tllman Feature Service.) 618 HOMES BURN DAILY. | Residence Fire Logs in U. §. In Five Years Totals $322,310,604. NEW YORK, July 25 (#).—Fire de stroys 618 American homes every 4 or one every three minutes, it is shown by statistics gathered by the National Board of Fire Underwriters during the past five years, and ptb- lished today. It was estimated that 50 per cent of the 15,000 deaths from fire, the_annual_toll in America,- oc-- cur in dwellings.. “The “total Joss-in-houses burmed for the perl coyered ig the report was §322,310 Directs Band Concerts EDWIN FRANKO GOLDMAN, Conductor of the Goldman Band of New York, which broadcasts Sunday nights through a chain of stations, in- cluding WCAP. The concerts foilow the usual “Roxie” programs. MAGMILLAN NEWS KEEPS RADIO BUSY Station in California Gets Message Mixed With One of Pacific Fleet. News from the Navy-MacMillan ex pedition for the United States is caus. ing a flood of radio messages to mem- ber stations of the American Radio Relay League throughout the United States and Canada. Some of the more active stations handle several hun- dred words each from WNP and WAP, the short-wave stations on the Bowdoin and Peary. Messages to friends and relatives of the members of the expedition, news dispatches to the National Geographic Soclety from Donald_P. MacMillan, reports to the Navy Department here, all swell the total of trafic that these amateur stations handle. Several unique events have marked the reception of the two stations since their entrance into the northern seas. The Antipodes have reported with station 2AC in New Zealand, owned and operated by 1. H. O'Meaha of Gisborne, acknowledging receipt of some of the messages from WAP. This station has picked up signals practically every night sinte the ex- pedition first reached Newfoundland waters. Messages Tangled. From California comes the report of L. Eldon Smith, district superin- tendent of the American Radio lay League, with station 6BUR at Whit- tler, that his reception of a messaeg from the MacMillan expedition on a 40-meter wave length got tangled with one from NRRL, the 40-meter experi-: mental station operated by Lieut. F. H. Schnell, traffic manager of the league, on board the U. 8. S. Seattle, flagship of the Pacific fleet. At that particular time the Navy- MacMillan expedition was skirting the Labrador coast and the Seattle was steaming about 2,000 miles south of Honolulu. From still another part of the world, London, England, comes the word that J. A. Partridge of station 2KF_had carried on communication with WNP on July 12. R. Bartholomew of Gar- rachales, Porto Rico, owner of station 4SA, also carried on regular traffic with this record-breaking short-wave station. Voice Tests Heard. Volce tests over WAP have been heard in a large number of stations, with the best results reported by Austin Wheeldon of Ellsworth, Me.; W. C. Montgomery, jr.. of Memphi Tenn., and the Masonic Radlo Club of Converse, Ind. B. H. Taylor of Haver- hill, Mass., failed to get the voice tests clearly but reported that they were made when the expedition was at Hopedale, Labrador. The greater part of the traffic be. tween WNP and WAP and this coun- try has been handled with fine speed. Stations that have made consistent records of several hundred words each day over extended periods are IMY, Donald C. S. Comstock, East Hart. ford, Conn.; 1CKP, G. H. Plnney of South Manchester, Conn.; 2BGG, E. H. Koeper of Elmhurst Manor, New York; 8DW, E. B. Duvall of Mount Ranler, Md.;: NKF, Naval Radlo Station at Belleville, 'Md.; IMK, headquarters radio station of the American Radio Relay League, and $BKR, J. M. Meyer, Milwuakee, Wit . el LOCAL STATIONS CONFLICT Sharing of One Wave Length Pre- sents Problem in Air. Washington, with its one broad- casting wave-elngth, shared by two Class B stations, one operated by the Radio Corporation of America and the other coming under the Ameri- can Telephone and Telegraph Com- pany, is threatening to present a problem for the Department of Com- merce to settle. Recently the A. T. & T. station, WCAP, has been using only about two hours of each of its three eve- nings. Seeing the opportunity to introduce additional features, the Ra- dio Corporation station booked late concerts for its off evenings after the other station had saild good night. This week after WRC had announced one of its late concerts WCAP re- mained on the air until midnight, necessitating cancellation of WRC's program. Both of the stations deny that there is any hard feelin, YOU N WE HAVE IT- Right in the middle of the game, when “The Goose” came to bat with two on, and only one run needed to win the game, and your set died— If you ever needed snappy service, it was then. Of course, if you knew us, there wasn't any hesitancy on your part in ’phoning the idol of all radio fans, will take the air for a farewell per- formance tonight. The adieu will only be temporary, however. 1 Radio’s great impressairo had been released from his contract with the Cdpitol Theater in“New York at his own request and severed his official connections last night. He will be on hand tonight when his “gang” faces the microphone for the regular Sun- day night radio concert. After that “Roxie” hopes to take a short rest in Europe. “Roxie” is going Into the show busi- ness on a much larger scale than ever before. A theater bearing his name is under construction in New York City, and is expected to open in Oc- tober, 1926. Then “Roxie” plans to return to the air, broadcasting from his own theate: Maj. Edward Bowes, managing director of the Capitol Theater, will take “Roxie’'s” place at the Capitol Theater microphone on Sunday night. Final Philharmonic Concert. The final concert of the New York Philharmonic Society Orchestra from the Lewisohn Stadium in New York, will be broadcast Saturday night by WRC, WGY and WJZ _ Nikalai Sokoloff, conductor of the Cleveland Symphony Society Orchestra, will act as the guest conductor. i New Type Set to be Marketed. A complete radio recelying set, in- cluding a loud speaker, without any batteries, will shortly be put on the market by Benjamin F. Miessner, a radio and accoustical specialist of Brooklyn, N. Y. The set operates on an ordinary alternating house-lighting circuit, which eliminated both A and B batteries. Engineers say the 60- cycle hum is entirely eliminated so that broadcasts may be received even with ear phones. The cost of opers tion by this new method is sald to be only one-tenth of a cent per hour or about a fifth of the cost of an ordinary electric light. This new set will be exhibited to the public at the New York Radio Show in September. Although the model six-tube set just completed by Mr. Miessner, has the electric conversion system built into the cabinet, it is said to have nothing to do with the type of circuit used; that is, it is applicable to practically any standard radio circuit. The mod el receiver is equipped with a stand- ard form of receiving, using four con- trols; its selectivity, intensity, range and volume are reported by engineers to be equal to if not superior to re- celvers on the market. Standard radio tubes are used. Complete cab- inet sets of this type, although not manufactured in quantity yet, will be offered to the public at between $100 and $126, it is believed. 3 The inventor of this new receiver began his radio work as an operator in the Navy in 1908, and in 1911 went with John Hays Hammond, jr., to ex periment _with radio-controlled tor- pedoes. He studied three years at Perdue University, and later returned to the Navy as expert radio aide, working on’ aeronautical-radio prob lems. Some engineers predict the set, or at least the principle of the electric power conversion, will revolutionize radio operating, tending to eliminate the present-day use of both batteries and chargers. “Bugs” Baer a Radio Feature. “Bugs” Baer, the former Washing ton humorist, who now calls New York his home, will make his radio debut Wednesday through station WJZ. Baer had been rather hard to capture and bring before the micro- phone and the staff of WJZ are com- plimenting themselves on their suc- cess. American Radio Memorial. Radio fans and amateurs when in New York City should visit the unique wireless memorial down on the Bat- tery, near the Barge office. It was erected by the Radlo Corporation of | America in memory of radio operators lost at sea while standing by at their posts of duty. The list includes 19 marine heroes who, in every case, stuck by their keys, sending out SOS calls or handling communications with answering ships. Most of them shared with the captains that sacred tradition of the sea—being last to leave the doomed ship or going down with it. The memorial comprises a large fountain and a _stone monument flanked by classical stone benches on either side. A tablet on the front of the monument carries the inscription in memory of the lost operators, the lists of the men being carved on the other three sides. The first name on the front is that ot Jack Phiilips, operator on board the 8. 8. Titanic, which sank after hitting the iceberg in April. 1912. Phillips, it is reported, had difficulties with his apparatus and worked prac- tically night and day prior to the ac- cident in an effort to keep in touch with other ships. Before he left the ship he had succeeded in getting in touch with the Carpathia. Although rescued when the vessel sank, he died shortly afterward from exposure, due chiefly to his exhausted condition. Ferdinand J. Kuehn, operator of the 8. S. Monroe, which sunk in the Atlantic in January, 1914, might have survived had he retained his life pre- server. It seems that shortly after he had sent his distress call the cap- tain ordered all to abandon ship. Kuehn, strapped on a life preserver and was ready to leave when a woman passenger asked him where she could get a drink of ice water. Urging her to forego the ‘drink. Kuehn noticed she had no life preserver and offered her his own. This she took and was soon safely seated in one of the ship's boats. Kuehn, however, either never had time to find another or could not locate one and ‘was lost. The then Secretary of Commerce, Willlam C. Redfield, in a letter to the boy's mother commended his heroism. The first radio operator to lose his lite while on duty, as recorded by the inscriptions, was George C. Ectles of the S. 8. Ohio, which foundered off the Pacific Coast in August, 1909. The next record is that of the lost car ferry, Pere Marquette, which | sank in Lake Michigan in 1910, carry- | ing Stephen F. Sczepanek, the radio operator, to the bottom. Two operators were lost in the Pa- cific in 1913 — Donald Cu.mpbell Perkins, who sank with the S. S./ State of California, and Lawrence Prudhunt, on the 8. S. Rosecran: EED IT Perkins was a young man po considerable talent as a violinist, who during his_vacations served as ap operator. He was one of the first students to graduate as a radio oper- ator from the Los Angeles Y. M. C. A. Radio School, then directed by H. D. Hayes, now supervisor of radio of the Department of Commerce. Super- visor Hayes has in his possession a letter addressed to the school by the Secretary of Commerce compliment- ing it on the type of graduates, par- ticularly the youthful hero Perkins. The letter reads, in part: “First Operator Perkins went calm- 1y to his post when the vessel struck and stood there facing certain death, sending out the distress call contin- uously during the few minutes that elapsed while the vessel was sinking and went down with her.” It is point- ed out n the letter that this operator was off duty at the time of the disas- ter and might have saved his own Iife; rather than that he went to his post, dismissed his subordinate to as- sist In gettng the boats away and re- mained himself at the key in his shack. Unfortunately when' the ship sank the shack door became jammed. Four other operators—Clifton J. Fleming and Harry F. Otts of the 8. 8. Francis H. Leggett, Walter E. Reker of the 8. Admiral Sampson and Adolph J. Svenson of the S. S. Hana- lei—perished {n 1914. Operator Love. joy of this last ship signaled a Coast Guard station with an ordinary flash light after the radio power was cut off and brought aid, The pames of the other heroes of the deep are: Lawrence B. Robinson of the §. S. Macona, Emile H. Hulse- mann of the 8. Cubist, Russell A. Willlams of the S. S. Motano, James Curran of the S. S. Moreno, George A Geare of the bark Magna Rova, Boris . Dietko of the 8. S. Brindilla, Fred alim of the 8. Conejos, Ernest E. Dorsey of the §. S. Swift Arrow and Francis J. Doherty of the 3. S. City of Athens. The names of all American radio operators who have lost their lives at are eventually to be inscribed upon this memortai, but there are sev- eral inscriptions which have not yet been made. British Market for Radio. The Commerce Department believes high-class American long-range re- ceivers will appeal to a number of distance-seekers 1n Great Britain. While wireless specialties of Ameri- can manufacture have not been of- fered to any extent on the British market because of the barriers against imported radio apparatus, they are expected to make their appearance now that import restrictions have been lifted, permitting freer use of forelzn-made equipment. The en- trance of American equiment into this market will be gradual, Commercial At- tache Butler says, depending for suc- cess upon the acceptance of American standards by the British radio en- thusiasts. American equipment, which is not well known, must make its ap- peal on a quality basis. It must be offered either on the basis of efficiency or uniqueness, or be quoted at a price of unquestionable value. It is believed that the American sets will have the strongest appeal to the growing number of “fishers” who are daily discarding crystal sets for tube sets. As the mainland is only as large States of New York and Penn- combined, the twenty-two broadcasting stations have heretofore furnished ample entertainment to owners of small sets. Local recep- tion, however, is giving way to a de- sire for distance, and it is expected that -American long-range sets will meet the favor of the distance-seek- ers. _— TESTS ARE ARRANGED. Value of Superpower for Broad- casting to Be Triéd Out. NEW YORK, July 25 (#).—Tests of the value of superpower in radio broadcasting will be made tocay, next Tuesday and Thursday by station WGY, Schenectady, N. Y., Martin P. Rice, broadcasting manager of the General Electric Co., announced yes- terday. The power to be used will be 50,000 watts, 100 times as great as the power used by the average station, and the greatest power ever trans- mitted by any station. The programs will begin at mid- night and last for one hour, and will be sent through WXAG, one of the experimental licenses issued to the company, using a 379.5-meter wave length. Special listening posts have been established in this country and abroad. Investigators hope to learn if the high power will ride oOver the prevalent midsummer static. [E— STRIKERS’ VICTORY SEEN. Judge Unwilling to Enjoin Tailors From Picketing. CHICAGO, July 25 (®.—A victory for labor and “peaceful picketing’* was indicated in the statement,by Cir- cuit Judge Hugo Pam, who Is hearing the petition of the Interna- tional Tailoring Co. for an injunction restraining 1,400 strikers from pioket- ing its plants, that nothing had been introduced thus far in the hearing to Justify issuing an'injunction. The tailoring company’s petition is the first to be asked since the passage by the last Illinois legislature of a bill legalizing peaceful picketing by men on strike. The hearing is considered a test case. Attorneys for the company based their plea on the theory that no picketing is peaceful and that any picketing interferes with the enjoy- ment of the property under surveil- nce. During an airplane drill in England commands of the squadron leader were given by radio-telephony. immediately, and we fixed you up in plenty of time to hear George Ross announce that “Goose” brought in the two needed runs with North 4896 B mnd : - North 9928 - . Zii. Disteibutors. - SMITH’S Radio Service 2119.18th St. N.W. .u~m.mn¢qun - Rates by Mail—Postage Paid > . Payable In Advance * Maryland and Virginia— One mofith.......J.............%“ 80c One week............... All other States— FIFTEEN MINUTES O F RADIO EACH DAY BY JOSEPH CALCATERRA, Noted Author ity on Radio. Al Rights Meserved. Reproduction Prohibited. Why You Should Not Force Your Vacuum Tubes.—Part IIIL Another curve which shows some interesting facts about vacuum tube operation is the plate voltage against relative audibility curve wi the UV- 199 or C-299 tube is used as a detector. You will notice from the curve shown in Figure 1 that the relative audibility increases as the plate volt- age increases. It would seem that the most logical thing to dd would be to increase the plate voltage as much as possible so as to get maximum re- sponse. That is exactly the way it works out, and the more you increase the plate voltage the greater will be the response. Do not jump at con- clusions, however, until you see the other side of the picture. 1 l PLATE with the added advantage of lessened distortion, the plate current or drain on the B battery has been cut down to about half what it was befors merely by using a cheap little C bat tery to put a negative blas on the srid. If cutting down the B battery cost to one-half appeals to you, my advice to you is to get a C battery connected into your circuit. “DEAD ZONE” TO TEST MACMILLAN’S RADIO Short Wave, Reinhartz Hopes, Will Penetrate Auroral Band—Ama- teurs’ Aid Asked. The MacMillan Arctic explorers ars expected this week to enter the auroral band, into which no radio mes sage has ever been known to enter’ and from which no message has eve been received To maintain communication with the world i§ the big task John L, Rein artz, Jr., operator for the expedition has set for himself. By means of the radio equipment that he has perfected especially designed for this work Refnartz hopes to send from the steamer Bowdoin the first wireless dispatches ever known to come from the auroral band and to pick up the words and coded messages that come into the band from the United States Prize Offered Amateurs. ‘The secret, Reinartz believes, lies in the short wave, and in an effort to rove his theory the young engineer as enlisted the support of man radio amateurs throughout the United States, Australasia and Europe. A prize has been offered to the amateu who lends the greatest help in pick ing up messages from the “dead zone." Last year on the Bowdoin's cruisef two-day communication with North America was maintained fairly con A stantly except when the ship was in this auroral band—a region of never ending _daylight covering approxi mately 3 degrees. ‘While the ships are in that region this year the wireless transmitters probably will be worked almost con tinuously throughout the 24 hours in an effort to pierce the great silent spaces of the North RADIO’S BEST OFFERINGS TONIGHT. Concert by “Roxie and His Gang,” from Capitol Theater, “Roxie’s” farewell, WCAP, WEAF and other stations, 6:20 o'clock. 4 | A GRID Fig 3 At 40 volts plate voltage the. re- sponse is very good, but it is by no means the maximum obtainable. It is readily seen that at 70 volts greater audibility is obtained. Now let us consider what happens to plate cur- rent consumption as the plate voltage is increased, the filament voltage, et: remaining constant, as before. Plate Voltage Shown. 1 _The curve for plate voltage against plate current is plotted in Figure 2. You will notice that at 40 volts plate voltage the plate circuit draws slightly over 1 milliampere. At 70 volts, how- ever, the plate current jumps to slightly over 3 milllamperes, or almost three times the value when a voltage of 40 volts is used on the plate. This means that the greater drain imposed continually on the B battery will allow it to last much less than one-third of the time that it would last if a plate voltage of only 40 voits was used. If you consider that the extra vol- ume s worth the price, that again is your affair. But if you are of an economical turn of mind and do not care to be handing money over the dealer's counter so often, you will take my advice and be contented with slightly less volume. C Battery May Help. If you are using the tubes as audio amplifiers and have never thought it worth while to use a C battery, per- haps a glance at the curve shown in Figure 3 will convince you that it is better to buy a 60-cent C battery than to replace a block of 80-volt B bat. teries. This curve shows the relation exist- ing between grid voltage and plate current, the filament voltage and plate voltage remaining the same. You will notice that at zero grid voltage the current drain in the plate circuit is about 4 milliamperes. Vith a negative blas of 4.5 volts, the cur- rent drain drops down to slightly over 3 milliamperes, or almost half the for- mer value. Without decreasing ¢'gnal strength, and, as a matter of fact, Wherever you are spend- ing your vacation—arrange to have The Star—Evening and Sunday—sent to you regularly. You'll welcome its visit every day—bring- ing all the news straight from home. The address can be changed as often as neces- sary. cesmivon. 200 Program from Steel Pier, Atlantic City, WIP, WGBS and WMAF, 7 o'clock Concert by phony Orchestra, o'clock. Detroit Sym- WCX, Concert by Goldman Band, ‘WEAF, WCAP and other sta- tions, 8:15 o'clock. Selections by Idyllic Male Quartet, WBZ, 8:45 o'clock. Cargest od FASTEST SHIPS T o H P WAY RAIL Your choice of rail rosses across the continent Reduced round trip Summer rates. ““See America” this vaca- tion. 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