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(o8 ' THE EVENING STAR, WASHINGTON, D. C, THURSDAY, JUNE 15, 1922. RADIO RALF— HELLO! EXPERT ADVICE ON RADIO| No. 28—A Loop-Aerial Set. ] 3 ro0P AERIA? you will find that for real interest and cnjoyment, if you are fond o | |tinkering” and ~experimenting, there ! |are few things in radio better than | |1oop aerial sets with which to occupy your spare time. BY RADIO TODAY | 1| Complete Programs of Radio Broadcasting Stations. NAA— 1 Radio Station, Radio, Va. 10:30 a.m.—Meteorological report on 5,950 meters of arc transmitter. | Noon and 10 p.m.—Time signal, foi- lowed by weather report and ship orders. 10:30 p.m.—Naval press news; wave fength, 2,650 meters. WWX—PFost Office Department. 10 a.m.—Weather report for the District of Columbia, Pennsylvania, Ohio, Maryland, Virginia and West Virginia. 10:30 a.m.—Marketgram (fruit and vegetables) on 1,100 meters. 32:30, 2:15 and 8:30 p.m.—C. W. marketgram telegrams on 1,980 me- ters. 5 p.m.—Wholesale dairy report cn 1,160 meters by radiophone. 7:30 and 8 p.m.—Market report on 1,160 meters radiophone. 0 p.m.—Weather report. WMU—Doubleday-Hill Electric Com- m.—Base ball scores Sole Mio," tenor (Di Rosmarin,” _piano Bay Waltz" cello (Toselli): smith,” piano ritone (Verdi) announced Capua); (Kreisler) (Ferrera Yy ighty Lak' a Rose” Wild Rose.” “Hawaiian Twi- Ave Maria.” pi- llo_(Pop- nett-Marcsie) piano (Nevin); violin (MacDowell); light” (Sherwood): od) hoes tracte Gavotte. M (Brown- Serenade, (Valdez); Across the Sea.” piano (Sousa); ball scores announced. pecial program for the e of Alexandria, Chanstrom, con- “Domestic Distri- | Dodd of United States Ch: Take You Home a vacation or for carrying to some | (Westendoff). friend’s house for an evening's mdiul (Arthur Penn), T. A entertainment. I have made a com- Again, ! BY A. HYATT VERRILL. miling Through Cantwell. Expert on Radio Technology. One of the objections to radio tele- = WPM—Thomas J. Williams, Inc. (360 the merial,IPlete 1oop aerial set which could be 4 “Meters). phone set at home, is H > Buildings interfere, and it is often easily packed in an ordinary dress Jews items; reports on very difficult (o find a suitabie spot|Surcast,sbattcriesjanaiall, Iudeed: or a good support. Landlords and| owners object to aerials on their roofs: it is often impossible to make, a lightning ground and there are| countless other obstacles to over-| . -/ Washington’s Upstairs Radio Store overcome by using an indcor aerial—| TAKE ELEVATOR AND a wire run several times around a| GET ACQUMNTED WITH IT - IS THIS ‘THE DENTIST'S OFFICE? WILL YOU COME TO OUR HOME To Fix A TOOTH FOR GRAND-MOTHER? 3YN—National 6:30 to 7 p.m.—I . i BELIEVE ME, T WOULDN'T CARRY DENTAL MACHINERY Mi55 RANKIN PHONED FOR ME -1 BELIEVE ! I DoNT Keow! T SEE! BY JACK WILSON. Copyright, 1922, by The McClars Nowspaper Syndicstn. HEY SI15". DID YoU SEND FOR A SCISSORS GRINDER? Radio Institute. (36 — (360 Meters—Enxtern Daylight-| WWJ—Detroit Newn (Enstern Stand-| 6 *p.m.—Complet ort it Metern). WGY—General Electric Company,| Saving Time—Deduct One Hour). ard Time). world. mews (360 metermy., o :;::::'?:Zni:r&"rh:;? Meters— ;e\:; uému m]l;.-n - 9:30 a.m.—Tonight's dinner and rTI p.m. . R. Night lvrg‘srnmun . = 5 v the Body a Mind,” | R ollow Detroit News Or ey = 3 pasre ime)os ¥ " | household hints (360 meters). el o . BTNt Dewe O Sty oo cariasd p-m.—Early stock market quo- | (€7 45€, i —Bedtime stories. | usic (S80 e m). [ ety ehion i e & bm.—Produce and stock market| 8 p.m—The Care of the Piano.”|meters) Weather report (485 mown Crier; address on A Daughtc: 3 Marion Jayn: 3 to 4 p.m.—Music; retail news and reports. WVP—United Bedloex Inland, . —Enaxtern Daylight deduct One Hour). 8:50 p.m.—Instruction in radio. 9 p.m.—Concert. foom near the ceiling: a wire run’ through a hall, around a loft| R R . o or garret. down an air shaft.! al d B Au w £ k Even an iton bedstead or bedspring ! € adalio argains €e may be used as an aerial and with| ® tube set, especially a regenerative | L Let with two or three stages of ampli- | Double Wave A-1 JUNIOR fication, excellent e r1|zs may be ob- Range tained by such makeshifts B Hor the best results. ho 100-800 RECEIVER loop aerial is the one to u 800-3000 door work. With a crystal set a 100D | AP emt. h ufdiens: unleds Yo | Meters Our own make very mear a broadcasting ¥ . but with @ tube set, and par- Voice and Mounted in Hardwood a regenerative set which x = amplified, a loop is high- Concert Cabinet with all Acces- using a loop, you! - 2 5 entirely eliminate static| 25 Miles sories Ready to Sét Up. an practically cut out all inter- | Code Range ference. This is due very largely to 500 Mil A Hand- the fact that a loop aerial is strong- es some Little Iy directional, that is, waves are picked up by it when turned towards | the direction in which they come.| while, if at an angle to them. the Set New d such a set is simple, for the direc-| tive effect of the loop causes it to act as a tuner itself and a set using merely a variometer or two and vari-, able condenser will give splendid re-| sults. The one shown in the accom-| panying figure is as good as any When using this loop you will well to employ Myers tubes. Thcse! have a greater amplifying power :han most of the others and messages com- Complete With All Accessories, Single Phone Only $18.50 Complete With All Accessories, Double Phone Only $23.50 ‘We Have the Goods ‘Whittal V. T. Socket .76 We Have the Goods ing in will be almost as loud as w many other makes of tubes, usi ASKRUS FAReut Oscillation Trans- stage or gmplification. X Our Special glome 5 Many Different Types. ? Cennsctioat B ‘Base Bwitch. E The loop may be made in any onel| Frost Jachs, 90c to 125 Text Book bt R of the various ways shown, the main Frost Plugs. ... oo ey NEI AT Jr. Sets thing being to keep it as light and | i Jith double ‘phose 23.50 5 Natromoter, Model A £7.00 50 A Complete Natrometer, Model B 22.50 yet as rigid as possible and to pro- vide means for turning or swinging it in the direction of the station you Books ... DeForest Audion De- ‘tector—One, Fntiomater Motal O 18.00 Education in R. L Multi- Stop f 2 Amplifier Type “Pols desire to hear. If you wish, it may int Galena.... bo suspended from a hook or from the For 00T madleiwite AT} (@ sValt {00 Aupary ceiling or even from a gas or electric light fixture and thus swung about | Eatestaeme Bateay, . 2o Brach Radi and tied in the desired position. No ground is used, the two ends of the wires being led to binding posts on Fully Explained only Protectors . Audels’ Easy Lessons in Wireless: Teleg- one of the arms or the upright. One of these is connected to the aerial ter- r:‘p:l’y"“ = 9 s minal of the set, the other to the e s the less Telegraphy.. 1.35 $10 ground connection as shown In wiring diagram. The loop may be anywhere from five to eight feet from tip to tip of the 3 arms, but an_eight-foot loop will Fifteen Complete Ror log Tt . give best all-réund results. Lessons Bubscriptions for— Of course, as in the case of any Radio News, per other a.rial, the larger the loop (pro- Money Back It M et Q. 8. T, oa: The Wirsless Age, * 2.80 Pay Us a Visit vided the same number of turns of wire are used), the longer the wave lengths it will receive. 1f you de- sire a portable aerial which may be quickly and easily taken apart, it may be constructed with arms set into holes in a hub, as shown, or the arms may_be hinged and hooked to- gether. For best resuits, place a narrow strip of bakelite or hard | rubber at the tip of each arm where the wire touches. Cut little notches in the ends of the arms or the strips to hold the wires im position and wind on from four to fix turns of No. 16 or 18 copper of phospher bronze wire, spacing the turns about one and one-half inches apart. Then, be- fore permanently fastening the wire or cutting it off. test the set. If you cannot ‘tune down from the long wave lengths received so as to get the music from broadcasting stations, take off one or two turns of wire, or if you find the waves brought in are too shoft, add a few turns. By hav- ing two or more loops of different sizes you can arrange to switch your set to the smaller one when ~you wish to get the broadcasting stations or to the larger one for long waves with dot and dash messages. Handy for Traveling. Not Satisfled. Paramount Receiver 32.50 Pay Us a Visit MAIL ORDERS FILLED PROMPTLY GET THE FULL BENEFIT OF YOUR RECEIVING SET LEARN THE CODE N HOW THE NATROMETER TEACHES YOU— Dais 11 an autemutic practicing muchine for the teaching of Wireleds Code. Operates successfully without the 2id of aerials. by simply attaching one dry cell. The Natrometer is wired, ready to operate when delivered. With fts pring mo- tor drive, and different changes of speci. and cede wheels, it loudly sounds the bu.zor like you were really hearing the messages through ®_large Commercial Set. Only $18.00 %255 e is, Get Full YOUR Cryntal Value of o m With the N. E. 1. Im- P Orystal Detee. . All the latest books and nickled | magazines on radio at lowest . prices. If you are at all handy with lonls' you can arrange a loop aerial s:l' NATIONAL RADIO INSTITUTE which may be taken down and_ set = up agatn In a few moments. Thev 8 2d Floor 1345 Pennsylvania Ave. are ideal for traveling or tak.is . PeaEn ( PRI RSIEEE B lecture. 8:15 to 8:30 p.m. i quotations; base ball results; news bulletinsg. 6:30 p.m.—Readings for children 7:45 p.m.—Concert; address, “The Carillons of Belgium and Holland,” by Col. W. G. Rice. Music solos. Signal Corps, A50 Meters ving Time, WWZ—Wananinker's, New York City (360 Meters—Enxtern Daylight-| 3 Saving Time—Deduct One Hour). p.m.—Music and chil- | ters). WGI—Amrad, Medford Hillxide, Mass. | dren’s stor Julius Lansburgh Furniture Co.’s Successful New Store Will Be BECAUSE ITS VALUES will make every purchase a satisfactory purchase— THAT WE GUARANTEE. 1f it isn't RIGHT we'll make it righ QUALITY THAT ENDUREs—reg'ardless of the price you pay. This store will stand back of all its merchandise. SERVICE that vou will find satisfactory and that includes reliablg goods, convenient credit and moderate prices. Gold Seal Congoleum Rugs Marie Antoinette Grass Rugs 6x9 Size, 11:55 a.m—United States Naval Ob- servatory by telegraph (360 meters). 0 p.m.—Weather report (485 me- :40 p.m.—Market quotations (360 " meters). f the G. A. R, of by (360 meters). time signals relayed KDKA—Westinghouse, En burgh (360 Meters—KEan ard Time). 9:15 a.m.—Music ! T(Continued on Thirt P St Music (360 meters). -cond Page’) 9x12 Size, $1295 06x9 Size, 8x104 $9.95 Smaller sizes in proportion. $7.95 $5.95 4.6x7.6 Size, Two-burner Odorless ands Wick- less. You need one for cooking. Our Special price $16:5 summer constructed throughout, man’s (| marked this suite at This 3-Door Refrigerator Like Of solid with large ice compart- cut. oak, ment and plenty shelf Opening Sale of room. This White Enamel Crib Strong. durable and good looking. Our sale price— price, -5 Iron Frame Lawn Swing Complete with canopy; 4-passenger. Special Price, his Four-Piece Period Bedroom Suite Is Finished in American Walnut Just as shown in the picture. attractive suite of beautiful design and well Dresser. with mirror: Full Vanity. Gentle- orette and Bow-end Bed. An extremely comprising large We have $13975 Like cut. excellent reed in Of quality natural rubber- finish; tired wheels. Very special at— 95 This Genuine Kroehler Duofold In golden oak, covered with good grade imi- tation leather. Sale price,