New Britain Herald Newspaper, March 17, 1924, Page 12

HOW L KLEIN, NEA Service Writer. To get most out of a single tube, try the single tubc reflex re Here, with the use of a crystal ¢ tor and the vacuum tube amplificr, stations up to 500 miles can |} brought in on a loud speaker. farther distances can obtaine with the phones. Use of a erystal this connection has to b clearer than the vacuum tube, be- cause of its freedom from oscillation and the climination of the howlii and squealing we geot in regenerativ rceeivers. The parts for this set consist of 1 audio-frequency transformer, r tion 4 1-2 to 1. 2 radio-frequency reflexing. 1 tube socket. 1 rheostat, 2 varlable condensers, 1 phone jack. for rectification in proved t tranaforn 23 plate. TO CONSTRUCT GOOD . SINGLE TUBE REFLEX SET ) short brass strips to ex- primary second feet upon e The aud + back of th vacuum wise, wi transforme 1 other way. This makes hort as posstbie should have a resist- ceeption, coniact are Yor Good T sockets w ts Tube as far apart as po po Die Dest, TOP VIEW DIAGRAN HOOK-UP, CENTER; F ABOVE, O NEL ARR “ " R THE L T\"l!l‘? REFLEX SET; T, BELOW, I BINGLE ANGEM 1 rubberized panel (about 8 inches 10 inches,) 1 wood base. 5 binding posts. Tus wire, | Thus, without the tube, batterics and phone or loud speaker, the set should cost not more than $30. Transformers, The radio transformers either made or bought. If bought, care should be taken that they are| for reflexing. A kind that can b attached to the variable condensers| can now be bought. The first trans- former, at the left, is made as fol- lows: Get two formica cylinder forms 118 inch thick, 2 inches long and 2 5-8 Inches in diameter. Drill two small mounting holes on each form, one hole on top and onc on hottom, by which the form, when completed, can be attached to the' condenser, ¥our more holes are drilicd in eac form, for the terminals, which may consist of switeh points elamped down inslde by hexagonial nuts, Ter- minals 1 and 3 arc on top; 2 and 4 below. Two small holes are made for the wire to pass through These are near terminals 1 and 2 Solder end of wire to tormina and wind 60 turns of 28 singlé cotio single ik, double wir evenly and tightly and so end to terminal 4. Wrap a o ®rip of empire eloth around thi winding, and then wind the primars winding on this. It consists of 15 turns, A the same larger secondary winding ™ ginning I8 soldered to termi and the end to No, ° Then mount on by dircetion as 1 cause this helps to cut down the capacity between the grid and plate of the tube, Another help for better reception is the use of a thin sheet of copper to back up the front panel, It elim- inatos body capacity and does away with mueh unnecessary wiring, I this is done, be sure to keep it from may be | short eircuiting the condenser shafts, | high, and report they heard signals and attach all ground and negative A battery connections directly to it Extreme care showld be taken in wiring. Joints should be soldered carefully. Leads should be as short as possible, But all cornérs of the wiring should be at right angles. The ecrystal deteétor may be any kind on the market, of one you can easily make yourself, The tube best suited for this set, it has been found, is the UV201.A, with a six-volt storage A battery or 4 dry cells in series, . A UNI98 tube might work just as well, with a tap #ff the sceond eell of the 6-volt A battery. The 13 battery vollage may vary from 45 to 90 and even more Operation, To operate the set, first adjus | erystal dotector by sotting both dials same point and moving the ontrol until a str click Slowly turn both di at ahont positions, until a ptation is the grid variable responat and tor better re. sam 1on turn the ar strohger coptio Keep and the A record of the dial markings tations 5. . to make Clarity and proper crystal ispend on ad BATTERIES Only PREST-O-LITE owners know the real results which can be ob- tained by their outfits. We SERV- ICE ALL MAKES OF BATTERIES O’NEIL Tire & Battery Co. 39 Washington St. RADIO REUNION FOR COLLEGE ALUMNAE Mount Holyoke Graduates o Get Together Tonight South Hadley, ) , March 17 Mount Holy Alumnae will ofn in a radio reunion tonight. An President Mary Wel- | jey, a musie by three mem- ¢ the department of music and songs by a student choir will he broadeust from station WBZ, West- Yinghous: eleetrieal manufacturing company, Springfield, and will be picked up by Alumnae associations at dinners in various parts of the coun-' College wldress by bers o occasion is the celebration of birthday of oue of the most fam- ous Mount Holyoke alumna, Dr. Cor- | nelia M. Clapp, zoologist, and of the closing of the three million dollar en- | dowment fund campaign launched five | ars ago. Trom the fund $600,000 is | being expended on the erection of a | {new biological building to be named | Cornelia Clapp Hall. | | UNSOLVED RADIO MYSTERIES, more mysterics [ than any other sclence. Of these, H. | Gernsback, noted ience writer, | | points to four outstanding phenom- | | ena that are still unsolved. | 1. Fading-—the dying out of a con- cert for no apparent reason. | 2. Dead Spots—areas in which certain transmitted signals cannot be | heard. | 8. Crystal Records—records of 500 to 1,000 miles in reception' made by | erystal sets which ordinarily cannot recelve more than 25 miles. 4. Body Capacity-—referring to the {effect a person’s body has on the re- ception of a radio set, when he is | elose to it. Radio presents ! | EDUCATIONAL RADIO, Department of Commerce radio bulletin show 93 broadcasting sta- tions connected with educational in- | stitutions in the United States. Be- sides, 46 newspaper or other publish- | ers have broadcasting stations and 20 | churches are mentioned in the list, RADIO NIGHT SCHOOL. A night school for radio fans is be- ing conducted three times a week at ! McKinley Training School in Wash- ington, D, C. Besides learning how to construct sets, the students Thow to tune in properly. RADIO CRITIC. The dramatic movie and literary critics of newspapers are being joined hy another—the radio critfe. He | listens in on as many broadcast con- |eerts as possible and eriticizes them in the newspaper the next day. OSCTLLATING CIRCUTTS, Ntadio munufacturers are trying to educate fans into the use of non- osolllating hook-ups, to avold local interforence in reception, !lujor, Bdwin M. Armstrong of New York, |inventor of the regenerative eireuit, suggests use of n stuge of radio fre- quency as a “muffier,” learn | | Economy" CETEVITIIVIPPIIPVIIITOTIIY $VOICES IN THE AIR §| PITTIVITVFOPPPIIVIV I POPT (‘ KDKA. l (Westinghouse—East Pittsburgh.) | Monday March 17, 1924, 6:15 p. m.—Organ recital by How- ard R. Wegg, of the Ritz Motion pic-| turc theater, Pittsburgh, Pa. 7:15 p. m—~—"A look Ahead ward Oncoming Events,” prepared “Qur World,"” | 7:30 p. m.-—Feature, 7:40 p. m.—National Stockman and Farmer Market reports. | $:00 p. m.—Radlo Girl Scout Meet-| ing, conducted by Laura Holland. | 8:15 p. m.—Program arranged by the FLaSalle Extension Institute of Chicago. 8:45 p. m.—Concert by the KDKA Little Symphony orchestra, assisted by Lucille Miller Werner, soprano;| Mabel Shoup King, contraito, I. K. M 's bass; Grace Falls, accompanist. 5 p. m.—Arlington time signals. Weather forecast. To (Westinghouse: 6:00 p. m.—Dinner concert by the| WBZ Trio. 7:00 p. m.—Concert by Anna Woll-| |mann, soprano; Mijiten J. Aronson,|of Irish songs, music and stories, with violinist; Willlam Churchill Ham-/| mond, pianist and Head of Muslc| Dept at Mt. Holyoke College, Address by Miss Mary E. Wooley, President of Mount Holyoke College. | 7:30 p. m.—Bedtime story for the| kiddies, { 7:40 p. m—Concert by the WBZ| Trio; and St. Patrick's Day program arranged by the Springfield Conser\'a-[ tory of Music. Story furnished *by| Orison §. Marden. 9:55 p. m.—Arlington time signals.| RKYw. (Washington—Chicago.) | 6:30 p. m.—News, financial an fi- nal market furnished by the Union Trust Co., Chicago Journal of Conp merce, and U. 8. Dept. ,of Agricuiture, | 6:50 p. m~—Children's bedtime story. | WPAB. | (State College—Penn.) §:00 p. m.—~Program by student| sicians, | 8:15 p. m.—Farm and garden pro-| gram: “Soclal Life as a Business aid| to FFarming,” by W. D). Gordon. | 'Small Grains for Penn- | N. Schmitz. m.—"Some Tactors {n Clothing Design” a home economics talli by Miss Margaret Brown, 9:00 p. m—Tarm and Garden Hints and musical program. m (Acolian Hall | | V7. | New York City) | 6:00 p. m.-—"Public and Social, by Professor Rufus D, 8mith of New York University, 7:00 p. m~"The Store"Book Lad will tell a bedtime story. 30 p. m.~~Frank Dole, "Dogs-— English Setters.” | T:45 p. m~~Joint recital by Mabel| Corlew, soprano, and Thomas Me-| Granaban, tenor. GROUND TEST, ‘ . TRadio experimenters tried what | they consider a more difffenlt test than that made under the Hudson | river recently, They took a receiv-| ing set into a tunnel 200 feet under- | ground, where ground capacity was UNDI | from Chicago and Philadelphia ON SHORT WAVE | Broadeasting station KDKA of East Pittsburgh, Pa., transmits regu- larly to England on the short wave- length of 94 meters, while at the safie time concerts are being sent out to receivers in the United States and vielnity on the larger wave- length of 326 meters, NEW LAW SOON. The White radio bill, providing for | better governmental control of radlo transmission and operation, I8 ox- pected to be adopted soon. Recelv- | ing sets will not be limited in any | way, as they arc in other countries. | o wips g | 9.300 MILES BY DAY. | The long distar record for .»mn-‘ mercial radio transmisdon on 600 meters wavelangth 18 claimed by St tion WIM, at Chatham, Mass, Mes- | sages sent from here were heard on | miles north of Wel- Zealand, or 9.300 miles | And by day, too | Hastings, Neb., has won worldwide | fame through station KIFXX, which has been rehroadeasting concetts from KDKA in Pittshurg a steamer 95 lington, New from Chatham $:15 p. m.—~The minutes, { 8:30 p. m.—Estey organ recital di- rect from the Estey studios. 9:15 p. m—Friendly Sons of Saint Patrick’s dinner, direct from the As- tor hotel; speeches by Honorable| Outlook literary {Henry T Ashurst, Colomel Willlam gram, Donovan, John Crosby, Colonel Wil-| liam Haskell, and T. Augustine Davis, Irish poet, | WRO [ (Radio Corp. of America—Wash- ington, D. C.) G:00-Stories for ehlldren by Peg- gy Albion, WHN (Loew's State Theater Building— i New York City) 7:30-8 p. m.—«Mal Hallett's land dance orchastra. 8.8:15 p. m~—Tom Bracken, sing- ing: £:15-0:45 p. m.-~Bugene and his Capitol T ce tors: Thomas Fatts Wallor plano. 8:45-0 p. Trish tenor, singing. 8.9:30 p. m.—Dan Gregory and his dancing ecarnival erchestra, 0:50.0:40 p. n.——AMred Dulin, con- eert planist, 9:40-10 p. m.—Madge Daniell, Irish #OPrano. 10.16:05 p. m.—Fisie Carlton in a short recitation 10.10:45 p. m—~Wilbur Sweatman presents Marion Schultz and her Lady Orchestra Rose- Aikens | jazz syncopa- at the m.—Harold Taft Wright RADIO SETS ATWATER KENT SUPERDYNE 4 and 5 Tube Sets at $55.00, $68.00 and §100.00 MANHATTAN and MUSIC MASTER LOUD SPEAKERS A. G. HAWKER 58 Elin Street "Phone 2456 | sports, Eimer Q. Oliphant, director of 10:46-11 p. m.—Jack Yellen, song | writer and composer, singing his own 11-11:15 p. m, George Roberts si 11:15-11:30 p. m.- soprafo. 11:30-11:40 p. m. Doyle and I'ritzi Leyton, Bob Sehafer and + Dave Ringle, close harmony si 11:40-11:50 p. m.—Rose Garavante, singing. 11:50-12 p. mi-—Harry Donnolly in plano solos. WGI (American Radio and Research Corp. ! —Medford Hillside, Mass.) | ¢ p. m.—"Just Boy” a broadeast om the Américan Boy magazine. 6.15 p. m—Code practice, lesson number252. 6:45 p. m.—Boston pelice reports. WEB (Atlanta Journal—Atlanta, Ga.) §-9 p. m.—St. Patrick's day con- cert, by Elk Royal Purple band, At-| lanta lodge, No. 72, B. P. O, E. | 10:45-11:45 p. m.—8t. atricg’s day concert, featuring George McNulty, | Irish tenor. | WHAZ (Rensselaer Polytechnic Institute— Troy, N. 7.) fr 9 a. m.—St. Patrick’s night eoncert address on Ireland and the Irish peo- ple by Deputy State Comptroller Ber- nard Patton, former slate senator. 11 p. m.—Popular dance music by Rosamond Burgess and her orchestra: Elva Vincent, violin; Harold Strunk, Saxophone; Teddy Jonas, banjo; Clarence Clam, drums and traps; Rosamond Burgess, piano and di- rrlclor. WG (Gen. Elee. Co.—Schenectady, N. Y.) 6 p. m—Produce and stock market quotstions; news bulletins, 6:15 p. m. — Review of week's athletics and physieal training, Union college., 7:45 p. m. — Musical program: Plano solo, Harold Heinmiller, teading, exeerpts from “Polly of the Circus,” Myra C. Scott. Violin solo, “Adoration,” Jones. Addr “Time”, Lvans, U, 8, N. Piano solo, Harold Heinmiller. Reading, cutting from “Within the | law,” Myra C. Scott. Violin solo, ¥rancis Jones, Piano solo, Harold Heinmiller, Reading, “Comforted,” Myra Scott, Violln solo, Francis Jones. Francis Com. Joseph §. C. Woo (Palmer School of Chiropractic— Davenport, Towa.) ndman's visit, 6:20 p. m | ~Sport news and weather | 6:50 p. m. forecast. 8 p. m—Musical program. Muscatine (Towa) program: Orvill I"oster, saxophone; Arthur Umscheid clarinet; Virginia Lichhenauer, “ace enist. companist; Mona Cuyrtls, soprano, 10 p. m.~Musical program: Grace Squires, soprano; Jean Gillard, pian- iste; Harry Yeanzelle Mercer, tenor. | Wendell Hall, appearing under the | auspices of Bver Reudy Battery Co, | wex s—~-Detroit, Mieh.) | (Detroit Free [ ¢ p. m.—Dinner concert, broadcast from Hotel Tuller, §:30 p. m.—Spectal musical pro- WNAC Shepard Stores——DBoston) 6 p. m.—Children's half heur, 6:30 p. m.—WNAC dinner dance— broadcast from Hotel Westminster. Hotel Westminster orchestra assisted by David Blalr MeClosky, baritone and Mildred F'rye Cook. | £ p. m—~Talk by Dr. Davidson-- assieted by Harvard Glee elub. Broad- cast from Lowell institute. 9 p. m.—Program of Irish Alre— | Copley Plaza orchestra. WGR (I"ederal Telephone and Telepraph Co.~Buffalo, N. T.) 6:30 p. m.~~Dinner musie, Vineent Lopez Hotel Statler dance orchestra. 7:30 p. mDigest of the day's news, Second broadcasting of all dally reports. ~=Address, “The Blemen- by Howard Pillsbury. 9 p. m.—~Musical program present- Importance of * by Benson G s Literature, Inc. Adrian J. Vanderbilt, 8:40 p. Business Le H. Durant of $:40 p. . pianis tolburing the M. ub, ed by J. P ropolitan Coner wip (Gimbel Brothers—Philadelphia.) = m.~——Cordes-Marks orches- tra. 9:19 p. m.—Joint concert by Leah Horne, soprano; Oscar Steele, bari- tone; Miss Rhea Vellignotte, contral- to; Josephine Chaka, soprano, and Miss Milo Miloradovich, soprano, ac- bedtime | companied by Conal O'C. Quirke. 9:30 p. m.—Cordes-Marks orches- tra. 10:30 vies," b 6:05 p. m.—Dinner music by the St. James Hotel dinner dance orches- tra. 6:45 p. m.—U. 8. Dept. of Agricul- ture Livestock and Produce muarket reports. 7 p. m—Uncle Wip's stories and roll call for the children. WCAYP (Chesapeake and Potorac Telephone Co.—Washington, D. C.) p. m.—*“Wading Into the Mo- v Robert E. Sherwood. 10:45 p. m.—Joint concert by Leah Horne, soprano; Oscar Steele, bari- tone; Rhea Vellignette, contralto; Jo- pianist. sephine Chaka, soprano, and Miss 7:40 p. m.—Isadore Geflen, concert | Milo Miloradovich, soprano, accom- cellist, accompanied by Mme. Johanna | panied by Conal O'C. Quirke. Applebloom. - 8 p. m.—Adrian J. Vanderbilt, pi- 7:30 p. m.—Adrian J. Vanderbilt, Political npaigners must pay $100 for every 10 minutes of talking, 8:10 p. m.—Isadore Geffen, concert |if they seek to use the microphone at cellist, WEAF, New York. By Roy Grove P o~ ~S 9 N [ & S N N RADIOLAS Also A Complete Stock of Radio Parts THE Spring & Buckley ELECTRIC €O, 78-81 CHURCH TEL. 2240 "PIONEER RADIO DEALER Sets and Parts WE ARE FEATURING THE ~ Neutrodyne Sets loud Speakers In All the Popular Makes Sets constructed to your order with the accuracy that only long experience in this field can bring about. stock of parts. Consulting service on sets of any make at all times. Complete CROSBY RADIO SHOP JOHN T. CROSBY Formerly With the Marconi Wireless and the Radio Corporation of Ameriea 141 MAIN STREET ‘PHONE 4244 UP ONE FLIGHT |