Casper Daily Tribune Newspaper, December 14, 1924, Page 23

" wercewneeneneernnree Key Public Service Company of Colorado _Saxaphone Band Guy_B. Hopkins, Director. Invocation Fort Logan, U. 8, Army EPPac| Ostrow—Op. 10 Rubinstein ‘ KOA Orchestra Address, “Education and the Mo- dern Revolution” George Norlin, President of the “Faust” .-~------------- Gounod Denver Public Service Saxaphon Band Address ‘Hon, Benjamin F, Stapleton, Mayor of Denver Instrumental Section—Reverie -. wecewwneseserosee-eny Vieuxtemps KOA -Orchestra ddress ier I. I. Boak, Denver Chamber of Band: Selection—' the Gladiators” A velopment of the Rocky Moun- tele cg tap i . r er, General Electric Company Violin Boloe— (a) Ronding on a theme Reesthoven (>) Walts in A Major .--~ Brahms Henry Trustman Ginsburg « {Part Bi Bong Cycle—"In ® Persian Gar nigh ties » Liza, Lehman ygyords Selected from the Rubiayat of Omar Khayyam) _ Vivienne Perrin ‘Stephens, Soprano |, lorence. Lamont Hinman, Contralto Robert oH. Edwards -....-.. Tenor the Rocky Mountain ing station of the General Eleciric com. pany at Denver, Colo., is scheduled to go on theair December 15. The wave length. for the present wil} be 323 meters dnd the power KOA, it was pointed out, is the half, way. point between the Miss- issippi and the Pacific and Canada and Mexico, and will be heard by millions from one end of the Ameri- can continent to the other. Already hund: of letters, tel is and 1 distance telephone calls have een received at the station in re- sponse to a series of unannounced tests’ under the experimental call letters, 9XA, during the dead of the night, for the last two weeks. A’ public reception at the station will take place December » and will, be attended by @ number of prominent state and city officials. Invitations have been extended to numerous radio officials in the east and on the Pacific coast. “From foundation to roof, this station has been designed and built for the sole purpose of radio broad: casting,” declared Martin P. Rice, wor of radio broadcasting of the Gent b>) ic organization, who is in Denver superviring arrange: ments for the opening. “Tt embodies all the technical a mechanical improvement suggeste by the experience of our other broad: stations. While KOA will be operated. at 1,500 watts, the equipment has addl- tions! capacity available for test ing. As a result, tubes and rectifiers will;not be subject to overloads and tranrmissicn will be marked by greater reliability and excellence of agualty. Additional power ts afforded culty will permit public everits, ‘ad- dresses, concerts and the services of many churches to placed “oi ~the air, ‘The station {s surrounded by a rich field cf talent from whieli to re- lect music, entertainment and edyca- tional features in addition ,to the KOA staff artists.” Cost of construction approximated $175,000 and it is estimated the an- nual os: of maintainance will reach $100,000. The KOA staff, when com- pletely organized, will number twen- ty members, including a resident en- gineer in charge of technical-opera- tions, program manage?, operators and announcers and members of the news bureau and the office person- nel.’ KOA'S antenna system, 120 feet long, {a 150 feet above the ground and 260 feet apart. Directly in the two-story studlo build: fing in which is housed, a large recep- ticn room, waiting room for artlets mera) offices and a concert studio and auxiliary or speal towers, power house and generator room. — Bul'ding material and equipmen’ sed in KOA {f loaded on freight ars, would require a train, forty 15 16n gand heavily loaded, accord ing to estimates cf the constructing ngingers. The station opens, Decem- er! 15. . roximately ten and one-hal of copper wire ranging in dia neter from the gize of a needle to n old-fashioned clothes pin were #e- rating, at -. | sneulal pecttrer, condenser. effect must be fect tr Hi The old. Joose coupler The 180-degree coupler The tapped var. ‘ocoupler How coils for receiving sets have changed trom the inefficient loose coupler to many types of self-supporting windings. Better Coils Are How to’ Now Available HAVE. DEVELOPED FAST IN PAST FEW. YEARS OF BROADCASTING. Those who have been lstening to broadcasting Seria ere Wet seg, aarti 8. not ago loose couplers were sold for nse with tal detectors and, considered. the last word in ef lency. They well, even today, but are much more awkward ee Precise ‘instruments which operate now with perfect dial control. ‘ . After the loose coupler came the vario-coupler, so called because the coupling between {ts colls was varied with a rotating form. This inatrument Oo performed well enough to ca: much loss of sleep among those who searched for distant stations late at night, but it has lost its popularity because its stationary coll is tapped. A tapped coil, one from which a lead is taken every few turns, is bound to lose energy because of many wires which must. remain Partly in the _ elreuit when they are not needed we only coroagh a carer ot 1, ARMY ADOPTS NEW CODE MACHINE tircle, or 90 degrees, g new type was developed in which the coils Signal Corps Experts Decide to Teach Operators with were at a different angle that a variation of 180 degrees: was Automatic Transmitter A mechanical device is to take pbtainabdle. This type was-easier to tune because it could’ be moved through a greater angle. . Both types ‘can: now be. made into -effi- clent three-ciroult tuners by wind- ing two coils om the stationary from for. primary. and secondary we sins of kas instructors In and using the rotor asa tickler: lorse and Continental code at the Various types.of variometer have|Army Signal Corps Schoo] at been evolved, the latest. being the| Camp Alfred Vail, N. J., following the ‘successful experiments with the new adaptation of phono- graphic or dictaphone {nstruction. AS a result of a report of a board of officers, appointed to m or low-loss type. Among the early variometers, which had for their function the turning.of a coil so that it could all or oppose its inductance to another similar was ulded. make a comparative etudy of the ence.of.any solid material near a| merits of manual and mechanical coil has a choking effect upon the| instruction in radio and telegraph code work, the signal school has adopted the latter system. These machines, such ag are used in many business offices to-day, will - be feeble energy which it must pass employed this year for recording in radi and variometers which solid material thet and transmitting code practice in both. the Morse and radio ace Ge tion as possible Zola have “gond'throuen’ rapid Gaveliowedt. vests ‘with enameled wire found on’ improper 2 tii material. for the’ early ets. In all coils the ca- lo, howeyer, have as little construc! ments and will actually replace the operatorinstructors,° accordling ‘to Captain John P. Ferriter, of the ‘t-the. coll ts .to/ Signal: Corps. ; juctance and, as in ‘val ometer, solid material’ must be avoided. ‘ ‘When wires lie — Somether in a its capacity is much higher fae when the turns are crossed or 8) in one of the many ways now used. It is ‘ible Ss pe coil this t; at home by using Sonme: now *Dbtainable in radio stores or by driving nails into a block of wood. Parts Must be Spaced to Avoid Losses Electrical losses through im- proper placement of parts are con- siderable in many home-made sets. Inductances shouid be placed so that the magnetic fields of no two coils inter-act on each other. This can be done by placing the coils at pb tency ten qery righ by Slt | When so placed, is sable to Standards Bureau |tiy'tne parts ont, so that the cols . . . will be as far apart as possible, Limits Testing Dials Most Statians Are Found at Lower Numbers With Slow Turning. By PAUL M'GINNIS, The low numbers on the dial are the most attractive to the listener who wants to add tions to his log. This js true because most condensers are made so that the majority*of stations are tuned in on the lower dial readings, Distant stations may be separat- ed by only @ fraction of a degree {f they are broadcasting on the shorter waves, and so when hunt- ing for them around the low fig- ures on the dial, the listener must be more patient than’ when dis- tant stations are h- 1 with the higher dial settings. With the ordinary condenser it {s as easy to separate the many stations of low wavelength as it is to properly tune in the stations of high wavelength. If you have ten degrees tween WEAF and WNYC, for instance, you need only some three degrees between WASI and KGO, in order to completely separate them. “Sometimes fans wonder why there are so few stations coming - The mnovlded coupler wave lengths. coupler Most stations come in at the lower figures on the left side of the dial. For this reason the dials must be turned slowly and patiently in or- der’to pick up distant stations using the lower of the set, but this is not the case. tions which come in.on/ the ordi- nary set with dial readings. above 56. The best method of tuning for distant, stations is. that of, turning in on the upper half of the dial, and they often think it fs the fault Coast. * The old saw about the ill wind It is great to sit in on a clear night with the thermometer start-} Ing on the downward path and the signals on the upward. The satis- faction that comes with a good set, @ good night and a cozy room is quite indescribable, but we fans know what it is. The atmosphere without increasing the length of The Bureau of Standards con- coil leads, It is not a good policy to con- ducted by the Government’in Wash-| struct a three-tube set on a panel ington does, not conduct tests on that is only large enough for a one apparatus’ which {s submitted to it | bes where the same tests may be made by commercial testing Jaboratories, neither are tests made the results of which are intended for use in advertising or sales promotions. There is such @ large demand for testing1n’ comparison with the Umited resources available for the work that the bureay has‘to con centrute on those phases of the work that are of maximum service ‘o the public. How to Stop Squeal Distortion from an audio fre quency amplifier caused by feed- backs -between the transformers, can be cleared up by reversing the leads to the primary of one of the {nstruments. If a high pitched feeble whistle continues it can be pped by connecting.a .005 micro- rad capacity fixed condenser ross the output terminals of the amplifier, | RADIO ROBERT La <7 af “te supported by two triangle |" FE company will have local supervision of the station. ‘ IF YOU want to see “her” eyes glisten with appreciation, fix your eyes on the “Gifts for Her" column in the Classified Section—now! a uired in the construction in addition © a mile and a half of electrical con- luit. Other items include 100 tons of structural steel, 2,500 sacks of ce- ment, 127,000 brick, 65,000 board feet ot lumber and 485 cubic yards of mand and gravel For the present, programs will be yroadcast three nights a week, the ates to be announced later, in addi- ion to Sunday features. Harry D. Randall, Rocky Mountain district manager of the Gengral Electric New York is the first city in which it has been found necessary to divide the telephone directory into two volumes because of its growing bulkiness. is clearing of the late"Autuimn static reaching its peak in mid-January. Good reception will continue through the Winter until April, veaching its peak in mid-January. The path of the signals trom Paris and England will describe an. arc that passes near Nova Scotia \d down the coast. The general supposition that the signals come across in a straight line {s errone- ous. Fans located in New England and Maine should hear the Europeah stations with great volume, Z BUICK SALES CHIEF SEES BIGGER SALE Last week encouraging reports well below 70. Cold Weather. Brings Better Reception By J..F. J.. MAHE, Reception from distant points should’ take «big jump now that the first real cold wegther has come, and every one-tube fan should be able to write up a Igg of stations heard extending clear to-the Pacific might well be.paraphrased.to read about reception and cold nights, for ‘nd matter how low ‘the mercury drops no one will ever hear a kick about it from your real radio fan. How to, Decrease Local Interference When.interference is heavy from local stations it may be cleared up. considerably by {ncreasing the dis- tance between the primary and sec- ondary coils, and also by using a variable ry, either by. taps of series. vy: le condenser in the aerial lea The aerial lead-in must be kept.away from the set xcept where. it comes to the aerial binding post. Vernier Helps, Tuning ) -& vernier is not necessary on any contro} if -you+can turn’ the -dial ‘slowly enough ‘with your’ hands. Few people have such a steady. hand. that is needea to accurately. tune. the Filter Tuner for distant Stations, however, and the vernier omakes {t easy for them. were received from E., T.. Strong, general sales manager; of the’ Buick Motor company, from Nebraska and Utah, which indicated an increase in. sai of Buick :cars in, those territories. . Further reports from Strong, regardirie* Colorado, Kansas and Misgourl, are:extremely en This: state is one of the Je g pr ducers of beet sugar und this year the dials slowly with the. marker pletely tuned ou! A number of readers have dis- ‘There.are comparatively. few .sta-| covered, especially in using the Fil- x Tuner, that they were turning it and were passing hich could be tun- ‘speaker and com- it by moving a dial te the dials too. many station ed,in on a loud only @ fraction of a degree. |German Patents to Be Offered by Navy censes. ie hai soon be submitted to applicants able to the Government. The pro- cess of going over the many appli- cants and accompanying .lists’ of patents will require considerable time, officials of the Navy Bureau of Engineering point out, indicat- ing that no licenses will be issued for several weeks. All applications will not be granted; probably only those firms having patents believed of value to the Government will be cross licensed. Fifty-three applica- tions already listed indicate that many new sets may appear in the near future. Reverse the Leads It the Filter Tuner falls to tune to the longer wavelengths, two of the wires must be changed. These wires are those which connect to the second filter cofl, the coil of forty turna which js beside the coll of sixty turns. One of these wires goes to the plate of the vacuum tube and the other goes to the phones. Remove these two wires aud reverse the connections to the coll to secure proper regeneration }and reach all waves. rop promises to be about ten per cent. larger than last as is well known, much precious met r. Colorado, many years, nh banks in Denver show in savings up to Septem $2,000,000 over year, Kansas shows a 86 gaih in agriculture over about TM® Navy Department is being |Current can be decreased one am-| flooded \with requests from Amer!- tan radio. manufacturers for the use of the German radio patents recently offered on reciprocal li- A standard nonexclusive, rable but revocable li- been drawn up and will with a request for a list of their Patents which would become avail- @ producer of 1 and mining of these metals is heavier than for The sheép industry is better now than it has been for a + | long time 6 an last cent PAGE SEVEN, The improved variometer ‘Fhe three-crrcuit Even the best ones are made at home now. 'Call Letters Are Important to Fan ANNOUNCERS MISS. OPPORTUNITY, TO ADVERTISE STATIONS By CARL H. BUTMAN. The other night I sat through two long numbers by what appeared to be a new and distant station, only to miss the call letters voiced by the announcer as “Station W Blah Blurr Blam.” There are listeners who can distinguish between WDAF and WEAF, which are both on wave lengths over 400 meters, but few are certain | whether an announcer says “WGY" or “WGI"; one on 360 and the other | 880 meters. Such complaints also show that some stations are falling | to gain new listeners, which defeats their primary object. The distance folks file special complaints that brief announcem | by call letter, owner and city are not made before and after each selec | tion, for identifying purposes. They point out that nothing discourages | them so much as to pick up a’station which they are unable to identify | within a few minutes. They object to waiting a half hour, especially when they are searching for a specific station = The fault lies chiefly with an }mouncers who do not enunclate i slowly and distinctly, with a pause For Direct Current | netween tettors or names. Over the A battery charger to operate om | air many letters sound exactly tirect: current can be made out Of alike. It-{s difficult to differen a few electric lamps. One type to tiate between the sounds of ¥ and ;charge @ srx-volt “A” battery can {T, P and B, D and G, C and Z, and be ease ery: Boren five one’ |s and F. Station WTAS has solved conuboted in parallel, By parattel | this to a certain extent by its connection {s meant running one | Soubriquet, “Willie, Tommie, Annie wire to the five inside terminals /and Sammie." Others use pert! of the lamp sockets and another | nent slogans or phrases which fans wire to the five outside terminals. | soon Jearn. However, some stand The inside terminal connects to| arq method of positive identifica the positive side of the house cur-| tion seems necessary. rent circuit, and the outside ter-) In the navy every officer learns minal connects to the positive | en alphabet composed of words in- binding post of the storage bat-| stead of letters, so, that there can tery. The negative side of the bat-|pbe no mistake when this simple tery connects directly: to the nega: | code is used. Under this plah, “Af- tive side of the house current line.|firmative’ represents the letter With gil the lamps screwed into| A, “Baker/" B; “Cast,” CO; “Dog.” place a five-ampere’ current will| Dp; etc. Applying this plan to flow in the battery,-and by un-| broadcast announcing, the speaker screwing one lamp at a time the/ might say: “This is statlon WRC | —Willfam, Roger, Cast,” using th By using a fifty-|,epresentative words, or the KG mp the unit will charge @/ announcer might say, "This ig sta 'B” battery. tion King, George, Optional, Good Ground Improves Distance Impulses Now is the time to overhaul the ground connections. The ground lead should be short and the set placed in e pos{tion to facilitate a direct lead- Where the set wire makes contact with the ground pipe the joint should be inepected and improved upon. if po ble. All connections should be soldered, Qsing a minimum of solderir 8 this conMound itself will introduce losses. The ground wicc any size larger than nuMber 16 gauge, and preferably rubber | How to Build Charger pere at a time. watt storage covered. ae The electrical resistance offered| ‘The best ground ,connection ta by an dg ly Pash, without wan | that using the cold water pipe, as essly increasing 1. by using a long, 3 4 wan > eile A indirect lead. A steam radiator is|‘!8- Dine 15 generally filled with a fair ground, but it offers con-| Water and the conductivity of the siderable resistance to the already| pipe increased. If the water pip weak radio frequency waves be-|is Jead it should be scraped cleau cause of the large amount of fron} of aj) paint or ¢ in the radiators and boiler, this} connection made metal having an absobing action} clamp. toward the current, A good ground may be had by A gas pipe should never be used| digging a hole several feet in th for the ground connection of a/earth, into which may be thrown radio set, for although it offers|all the old metal scrap available ani less resistance than a steam pipe,|.a fow pounds of common househol.) it is dangerous, if a small static/ salt; a copper rod may Sen oe charge collects in the aerial and ts| driven Into the earth a few fee: passed to the ground. deeper than the hole, and water Another advantage of the gas/ poured intovit, and the connection Pipe is found in many houses| made to this rod. If the earth is where the pipes are equipped wita normally damp this will be a good insulatinig joints. ground. nd a perfect with a ground Sure, Give the Waves a Chance with a large crop of » corn, | oats, hay and fruit. nsas wheat crop is one of the ‘largest in the history of the state, The increase in check transactions at Atchison, for September, showed an increase of 16 per cent over last year, Hutchinson, 90 per cent; Wichita, 25 per cent, Bank deposits {in Kansas City are larger than they were @ year ag the Buick s that the lead undoubtedly be more active during the coming months than for a period of many months in th Conditions in connection with the railroad shops, metal mines, build ing activities and farm decided improvement shoe industry aso of ast