Evening Star Newspaper, May 31, 1922, Page 27

¥ Expert Adv1ce on Radio No. 15—To Increase Wave Lengths of Crystal Set. . il - 0! . i THAT'S NO'WiY To GET A JOB! Expert en Radio Techuology. " As already explained, in the article YOU SHOULD MAVE GONE THERE ON === THE JuMP! - TLL BET THERE WERE , You can use any of the loading colls : v AMLLION BOYS AT THAT RADIO SHOP. or you may use the set without them, N L 3 3 by merely throwing over a switch or pushing in a plug. ©f “tuning.” the long waves from. the| "jus: as colls of this sort will, in- large stations pass unnoticed and|crease the maximum wave length of unheard over the merials used for|® Set, o condensers will reduce the ordinary ‘wave length. If your Bet receives lon, recelving sets. Omly the, uove, Sl cannot be tuned to shorter “horter and medlum-sized waves are|waves, you can remedy the trouble Pioked up. If one wishes merely to|by using a variable condenser in the listen to the brosdcasting stations| $eTial clrouit already described. cAofl': ¢ nd to amateurs, this Is an sdvantage. | which may be switched or Dlu for there is no need of tuning out|out-or in, according to nqnlru" 1ab) the long waves S0 you can arrange a variable eon- denser to be connected or discon- But a great many people want 0| nected at will, dgpending whether you Plek up the longer waves from the| wish to I;lcraue or decrease tae wave ayger stations order to hear the| leng! of your set. dot and dash code messages. This may| By using both loading coils and a bs done, elther by increasing the|condenser with a multiple-point Jength of the aerial so it will re-|switch, an almost endless number of nd to long waves, or by increasing | variations may be secured. As shown size of the tuning coil or induc-|in the drawing, you can use the set * $£aos. which amounts to practically|without elther losding colls or con- e n u lengthen iser, or w. condenser and w! - or shorten the cotl you really length-| out loading cofls, or with loading 2:56 p.m—News and music. . | ea or shorten the aerlal circuit. But|colls and no condenser, or with both | detector. By using these you will not | District of Columbia, Pennsylvania,| 7:30 p.m~—News and musio 3 pm~—American and National i you use a longer serial (and you |loading colls and condenser. only make your set more sensitive.|onio Maryland, Virginia and West s league base ball team line-ups; prog- i ‘rlequlreul yery long one to get Colls Easily Made. Virginta. WWJI—Detroit News (Eastern Stand- | re8s of games every half hour there- . . The vig siscions) Tt will Be nara”to| gy Somting. ceite are sastiy | S04, HEBAIS much louder u I e Mi et (heait ama ard Timo). s s B masket an New Apparatus and Devices u can vary the length of the|Made in & few minutes, and It is well | “The first thing to improve upon to tabl 1.1 30 s.m-~—Tonight's dinner and|gjancial returns. R N, However, by usiag a| {3 have many of them on hand. A render your set more eMclent 18 the | " Fyae Tas and By mmmC. W. 6:30 p.m—News, final market and hortet merial, 100 to 150 feet in [little experimenting with the various | detector. Tomorrow we shall €0 Into | Maciers tele, o 2: financlal returns. : : fength, tha same results may be oo- sisel will ‘enuble)you (toidstarming the buliding of a crystal detector S rem Srime Lo AL « pm. — Children’s bedtime By Ralph Brown, Radio Engineer=—oaaal ned =v v . An wmary coll pannot ‘e vacie | bring In all the stations You Want to | 1a" better 1a. mans Taars thar ang ol panlry report on| 11:55 a.m.—United States Naval Ob- ) D o ot (F mvste by: A New Regenerative Receiver and Amplifier. muft@lantly to do this and so colls|Bear. ready-made_detector. aEatave by MedisTR servatory time signale relsyed by | clara E. Tayior. soprano, with Esther 2 krpown as “loading colls” are used.| Do not think, however, that loading| = . \Comorignt, 1002 14530 and & p.m—Market report’ o (360 meters: Muller, accompanist; Carl Craven, These are simple colls of either in- |COlls really increase the distance at b ) 050 e ek ther Benait. pm—Musio (360 meters). tenor:’ A, Nelson Brabrook, cornetiot; sulated or bare wire wound on tubes| Which you can hear. Increasing the ’ = L e 30 pm~—Weather report (485|gidney M. Bpiegel, Jr. reader, and and connected between the aerial and | Wave length does mot Increase dis- |Tomomuw—'To Make s Really Guod Detecter.’ WU Deuhlef e B meters). Sallle Menkes, accompanist. the regular coll. In other words, they | tance. It simply brings in signals ay _a 1 Electrie| 3:40 pm—Market quotations (i p.m.—Naws and sports. are aerials wound about a tube or|YOU have not heard previously, owing Company (360 Meters). meters). 9:054p.m.—Special features as an- core. to the fact that your set was not 4:30 to 5:30 nm.o—Bue ball scores| € pm—Complete sport results; noum:od by radiophone. Functions of Loading Oofl adjusted or attuned to them. More- BY RADIO TODAY announced. ish Song Medley, worid news (360 metors). - over, the fact that, with a loading part 1; “Jocelyn,” plano (B. Godnrd) 3:30 p.m.—Conoert by Detroit News | o5y _iwegtinghouse, Newnrk, N. J. If you wish to pick up the long |cofl you hear signals from sending “Naughty Hawall” = (Breau-Alma: Orchestra._ Program by Hetelle A R e 2 ‘waves, you merely have to connect|stations much father away, does not Compl. Pr of Radio Sanders), “The Bard of Arm Wrooky, soprano; Alex Burrell, tenor, | g vi. " rime, Deduct Ose Hour. 2 loading coll between your lead-in | prove that you will hear music from omplete ograms ] and the Wolverine Quartet. Talk by g and the tuning coil, while if you wish | stations still farther off. It simply Broadecasting Stations. Edith M. Ruebekam, music leoturer.| 9 am.—Agricultural reports and to get the music from the broadcast- | shows that you are getting long g) The Town Crier. Progral by Wil- | prices as released by New York, New. ing stations the loading coll is dis- | wave lengths, which are far more piano (Godard); “H T » lam SF.% Geaikl, xooucertine s (150 Jersey and federal bureaus; program 3 ordinary tuning | powerful than the v a Verdl); meters). coil used.'The loading coil may be 56 | lengtho of the broadcasting. statione S Radio Station, Radto, Va. | ({3410 Mnm:"rt( Hav e et A0 taan —FrosTam " of. snuso; Do gonstructed that it too, can be va-| Th distance at which you can hear a.m.—Meteorological report KDKA — Westinghouse, Pittaburgh | ATt recital. : Many persons using radio receiving | paratively large inductance value in- ried, either by snapping the wires off | with-a crystal set depends upon Its | on !. 50 meters of arc transmitter. & (380 Meters, Eastern Standard | NOOD—Agricultural reports; weath- |gets for “Iistening in” to the broad-| sures a maximum voltage being im- gr on different turns of the coil, or | sensitiveness, and while a vacuum | Noon and 10 p.m—Time signal, fol . Time.) er foreeast; program of music; DUO | 00y have experienced annoyance| pressed upon the grid of the detector y means of taps and a switch. tube set is far more sensitive than Dexie &g, tors f Eri 9 to 9:15 a.m—Must Art rect ot e \ This method, however, necessitates | any crystal set and must be used if | 1°Wed by weather report and ship or- (st e 12:15 i 1 pm—Standard time sig- | from spark telegraph stations. Some- |tube. This makes for lopder signais. two separate {uning adjustments and | you expect to Eet music and conver. | ders. » | 11:30 a.m. to noon—>duslo. nals from Arlington. times this is due to the fact that the | The primary inductance fs controlied it 18 a far b 2.30 Results of Pro ¢ muste. i O etter plan to have several | sation from _statio; 10:30 p.m.—N Dress news, wave | ball scores announced. Sana e elu;- forl 11 league| 1 p.m.—] i Y interfering station is sending on the, -ections to detector, or ome or two oading colls of different sizes, which | twenty-five miles awa length, 2,650 me aso ball scores by Innings. 2. DI ShippIng. nows by, 4% | same wave length as the broadcasted] switches, the coil being tapped fo may be quickly plugged or switched |add a great deal to tI 2, 81tivenes: WPM—Thomas J. Williams, 6 pm.—Weekly summary of “The |rine Engineering and Shipping Age; | 700 Wave jengih as the broadeasted es, the col ng r out or in the circuit. as shown in the | of your crystal set by making better | WWX—Post Ofice Department. Metern, S e P! Rcorga,s liac due to the fact that the telegraph | . Purpose. sccompanying diagrams. In this way ' tuning devices and & better crystal 10 a.m.—Weather report for the | 12:30 pam—News items; reports on | Stfical features. sending siation s quits near by, al- | ,One of the novel featuree s Ihe stolen automobles. : $:15/p.m-—Bneclsl address and con- |1 0. Though whkking on a aifferent wave elimination of the plug and jack - ) cert. fashion news by the Women's Weal|jength. A good deal more often than | yStem. The telephone recelvers are NOF—Naval M P 6:45 p.m.—Special news. Govern-|Daily, fashion newspaper; Program |peccegary, however, it is because the | COnnected to the binding posts at the F—Na r Statien, Amscestia | ment market reports. Summary of of music. Feceiver 'does mof fume “sharply~ | extreme right and the multi-point (412 Meters). New York Stock Exchange. ather .m.—Base ball scores; program of | onough. A direct coupled circuit can | SWitch is used for switching the con- WYG — General Electric Company, | 00, burgh ntal 7 - used, but the ence Smith Vinoent; final mary and secondary coils is fixed at 8:30 to 9 p.m.—Muslc. rlnorL nections "to tetector, or one_or two — b.m.—"The Value of Classics” by b.m—“Review of Tron and Steel | B8T4Y, 2 expected to be as selective stages of amplification. Changing SYN—National Radio Institute (300 Miss Florence A, Buth. dean of Eenn: | Indusirics and Thelr Relation to Gen | 25y o connections is simplicity itself. = enry. tylvapia College for Women. “Den:|eral Business Comditlond” by the | fhe sake of extreme simplicly of op. | . The panel is of bakelite, the cabinet 20 to 7 Radl, % cod ay rofession,” by Dr. J. F. 28TI- | eration. In the receiver illustrated |is finished in mahogany and all metal 130 to 7 p.m—Radlo spark code. | fl le, nmnmor at the Unlfvermy 3 the inductively coupled circuit, is|Parts are well nickel-plated. Tube ® | Sockets are easly accessibie for the o e emed "2t | insertion or withdrawal of tubes and scores. the value found best for maximum l“ controls are plainly marked. 8 pm—Literary period conducted | signal strength and freedom from k3 o b “pomCiassical vocal selec- | by the. editorial stalls of the Out- |spark telcgraph - interference. By stage ampifer is very e tions by puplis of Alfred Bartlett! of | ook, Selentific American and Harper | making the coupling fixed inductive |deed. and the i as ol Pittsburgh. Base ball scores. & Bro.; final base ball scores; marine an unnecessary adjustment is elimi- | clent &8s it is good-looking. § to 10 p.mn—Arlington time |news. nated. The result {8 a receiver which WVR-TU. 8. .l‘-ll Ocl.., Fort Woed, p.m~—Concert. Meters — Central Daylight-Saving| 10:52 to 1i pn—Arlington time |distortion on Standard VARIARDLE ey Time—Same as BEastern Meters)—Eastern Daylight-Saving 5 am—Opening market quota- Time—Deduet ene hour. tions, Chicago Bo: Tra pearance of the receiver and two- le, indeed, to operate. 9:30 to 10:16 p.m.—Duet recital by | is very simp! ;i o Meremy: Ines Barbour, Goncert soprano, and | The tiokler coll is small, to avold 100 Brief Possession. ym—rn-trucuon in radio. KW—W-G-‘-—-; Chieage (300 | Henry Hadley, pianist and composer. [ §reat regeneration and consequent | From the Boston Tramscript. the short waves. It is| ‘jtg sickening to ses that beautiful , large enough, however, to provide | oung girl sell herself to such an old signala x =i for all the regeneration desirable. A L ConDENTER WWZ—Wanamaker's, New York (300 Time). 11:01 pm—Westher forecast. small, variable secondary condenser |TUil: is shunted across the secondary coll, | ghort-term lease, you = 1 shouldn't call it a sale—just a know.” of e, — 1:40, 5:40 and 10:30 p.m.—Musio and| 10 a.m.—Market guotations at.one- Easy to Get, If- whose induotance is non-adjustable, PR e 2 stories. half-hour intervals until 1 p.m. Marie—Oh, Ol'lld. da-r. 4o buy jexcept when a loading coil ts used. Miss Elena. Jurado, a Filipino girl sy $ 1:20 p.m.—Closing market quotations. | me one of thos d bags; you can | Tuning of the secondary Is, there- |of San Francisco has made such WGI—Medford Hillside, Mass. (8560 | tions. get one for Ion‘ fore, accomplished only with this |marked progress as a moving picture Meters — Eastern Daylight-Saviag 16 pm —~News and market re-| Oswal Time—Deduct One Hour), ports few no -H'm—even, probably for & |condenser, and the fact that the ca- 'actress that she now has her own ity is 'small and used purchases; that’s part of our service. We started out years ago doing business with our customers in this manner, and today we feel the same way about it. One need not wait until all the cash is gotten together when the HUB paves the way for owner- ship with liberal credit terms. AVOID the uncomfortable heat over a coal range while preparing the daily - For the Home F urn i S h i n g S CAN ‘you imagine a more eom- _AWN BENCH, 42 fortable suite than this for inches wide. Folds your home—Iet alone the duplex ! up compactly. Credit Privileges As Free as An' Don’t hesitate to ask us to charge your Cook On a Florence Oil Stove This Summer + Married This Month? See The Hub meals. Florence Oil Cook Stove will keep your house cool and pleasant. 17 ‘WO-BURNER Florence Oil ook Stove (with- v g out top) ; guaran- SMALL but efucient teed to be almost :&nga; f""k S:‘“‘ wn:lh s . 3-burner top ; made as efficient as a ¢y very best mate- gas range—gives rials. Easy credit terms instantaneous of payment—no - large heat. No w.,ck, to cash outlay necessary. $19.75 up under everyday usage. Baronial brown finish. Box Massive 4-pc.; Duofold Suite ;\v‘w‘v : O RCH SWING, 42 inches idea of a bed concealed in the d“celnm?th'l;he frames are ‘of soli eovermg a good wearing imitation leather. The suite consists of a “Kroehler” Davernport bed. table, armchair and rocker, ARONIAL - brown $l 98 b.ck.“dedn:tlh slat seat and L. owppp oG )0 = Liberal Credit Terms e |lllllllfl]l| I paatiny —Pay as you earn. il (|l [ : i A ! (i ! HERE is a Fiber Reed Suite of three pieces, designed for all-year-round use—fdr the sun parlor or living room. It is durably made to stand : finish Fiber Reed varnish finish. Double frame, striped canvas’ Rocker, roll edge de- woven rush seat; slat stretcher. For the porch sign. back. orlawn. Free Premiums With every pur- chase of $100 or more, Cash or Charge account, the Hub will give FREE, a dainty 42-piece dinner set or a 26-piece Rogers silver- plated tableware set. Two excellent worth- while premiums you will be glad to receive. $39 15 Note the Bibly s nructwno/uchpwoe It consists of a settee, armchair and rocker. cushions covered in cretonne. RM ROCKER, of JROLDING Hammock hardwood ; natural .+ Chair, hardwood ALL- METAL,. Drop, - side Couch, complete with cotton~ filled pad. A good, comfortable 1 link spring is attached. May be- " i usedasooudlorbed.asduured. |