New Britain Herald Newspaper, April 21, 1924, Page 12

6793 MILES OF WIRE 10 ARRY SPEECH 1 Stations to Broadcast Pres. Goolidge Tomorrow New York, April 21.—Nearly 7,000 miles of the American Telephone and Telegraph company’s land wires will be used tomorrow to hroude Ly ra- dio President Coolidge's speech at the funcheon of The Associated Press at aldorf-Astoria. The broadcasting begin at 1:45 p. m, Eleven hroadeasting stations east of the Rock Mountains will be linkcd di- rectly or indirectly with New York city in this most elaborate experiment ever made with a presi s message. The land wires, ong lines,” over which the presideat's voice will he carried from the Hotel Waldorf-As- toria to station WEAK will be tapped by lines running to other broadeasting stations. On these lines there will be forty-two repeaters, such as are used in long-distance telephony to com- pensate f kness of current and to ipsure the carrying power of the voice over long distances, The repeat- ers and special ampli are installed al twenty-one stations, Many Miles of Wire The actual mileage of land wires to be used in the experiment is 6,793, | The wires are being connected in eir-| cuits which will be maintained for fu- ture broadcasting tests, There will be fifty-five engineers at work handling the repeaters and the special amplifiers at the twenty-one repeater stations. They will keep close check on the repeaters lhrough-‘ out actal operation. | In routing the circuits the American Telephone and Telegraph company will set up a microphone at the Wal- | dorf with amplifiers near by. From the | grand ballroom, the president's volrev; will be transmitted by wire to the radio studio of the A, T. & T., 195 | Broad and thence by wire to the high power transmitter at station | WEAF, 24 Walker street. | Others Tap in Before reaching WEAF, however, | the wires will be tapped by station WCAP at Washington, D, C,, and WFI at Philadelphia, with repeaters at| Princeton, N, J, and Philadelphia; by station WCAE, Pittsburgh, with re- peaters at Harrisburg, P., and Brush- ton, and by station WMAQ, Chicago, with additional repeaters at Beaver Oam and Morrell Park, Kansas City's station WDAF will tap the landwires to Chicago with repeaters at Burling- ton and Newton, g The circuit serving the territory farthest west will. tap the long Jine at Newton, golng thence to Wichita, Kan,, to Oklahoma City, with special amplifier at that place; from Oklaho- | ma City to Dallas, Texas, with special amplifier at Dallus, and from Dallas ' to Fort Worth to state WBAP. The eircuit serving St Louis, station KED, is made by tapping the line to | Chicago. That circuit will be operated through repeaters at Bioomington, Ili, Station WWJ, Detroit, Mich,, will be tapped on from the Beaver Dam repeater statiol Station WNAC; Boston, will be tap- ped on from New York city. Btation WJAR, Providence, R. I, will get the message through its regu. | lar facilities which tap WEAT, Official of the American Telephone and Telegraph company announced they would operate the WEAF trans. | mitter on & current of 1,000 watts, al- though it has a capacity of 5,000, When operated up to that eapacity WEAF may be heard by radio liseners throughout the United States with great clearness, but it virtually drowns | out other broadecasting stations in this territory. Stadon WJZ, atop Aeolian Hall, West Firty.second street, between Fifth and Sixth avenues, will broad- east the apeeches at the luncheon of | The Associated Press, or Heard in Japan. An Esperanto speech broadcast re. | cently from WOR, Newark, N. J, 18 reported to have been heard at| Tekio. Hiroshi Ando, Japanese radio engineer, says he heard the speech after listening In on broadcasts all day. “HEARING 18 BELIEVING” TUSKA SETS $35 $75 $125 WILLARD RADIO BATTERIES $8.90 up BRANDES TARI $5.00 GLOBE PHONES—$4.00 SIMMONS STORAGE BATTERY CO. 163 ARCH ST, TALKERS Phone 2245 RADIO Removal Notice Tomorrow cvening. April 15th we will open our new and en- larged store at 51 Vim St near cormer of Chestnnt St SERVICE AND QUALITY will continue 1o e our motto. 18 IO ST on parts and omr opening WE ARE FTEATURING the Treswoo Tang ivance Tube Set complete at the special price of $35.50 RADIO qu‘ipmenl House Accrssories, for | QST, AMERICAN e L - s “Publie and Social Eco- | EW BRITAIN DAILY HERALD, MONDAY, APRIL 21, 192.. SIMPLE, SINGLE-CONTROL SET BRINGS IN SIGNALS SHARPLY By ISRABL KLEIN NEA Serviee Rudio Liditor What most of us want is a simple, sharply tuncd radio receiver, brings in stations elearly, yet of comparatively low cost and offers no trouble, One of th st simple, singie- Perry 0. amateur, designed it amplification to it and you will have a highly efficient iver that will bring in distant deast conecrts with strength and And there is practically no pictured here, lio control biriggs, r Add two consists of the following matcrial L1 and 1.2, colls of antenna coupling. 1.3, tickle C1, va primary and secondary coil ble d mica condenser, rid costat, Vacuum tube Twa tong, T inch wide One large pane Two smaller 001 mf condenser, condenser, & ohms, wket, fis, about nd 3-8 ideh thick. 11 inches. one 113 by wood 8 inche panels, that ¢ bro circumfer: It is ce 14" pegs in the of a 2 7-S-inch circle. secured and romoved like 1.2 Avoids 1 coil is pluced on end “wooden rods, which ng froom the large 10 th of the paicls it the set attached to the [ t and ri L1 at an angle of 45 at 60 degrees in re- The whole group of should I about rear sses The sccondury between the tw e front two small L1 1.3 1o the degrees, lation to three coils two inches placed front and from the panels. These th er little r arp tuning. the designed to therefore heavine the lack of varnish, the ab- ¥ tube, their freedom from rts of all these for in tuning-in deast progr , technical editor publication for the T writes: worst defect the high wire, reo coils are istance, and The s of wire, set co- other tie operate low loss of QST, al Anerican dio Relay “About the tune s in the generally e of most resistance resistance is not at least not in in the coils tow o wind coils Lacadl3 SKETCH AND HOOK.UP OF PERRY O. BRIGG RADIO RELAY 1. BELOW, 18 METHOD OF WINDING inches, the other 3 by 4 inches, Wood base, § by 11 inches, Fifty-five feet No, 12 D, C. C. wire. K en feet No, 15 bell wire, Seven feet No, 12 D, C. C, wire for leads. Beven hinding posts. The battery binding pos®=are at. tached to the smaller of the small panels behind the set, Basket-Wound Coils The parts that make this set es. sentially different from the ordinary two eircuit tuner are the three colls. 1.1 is the primary of the antenna in- ductance and 1.2 the secondary, The primary consists of aix turns of No. 12 D, €. C. wire wound on a three-inch tube, then taken off and tled together by a thread to make it self-supporting. 2, the wmecondary, Ix a basket. wound eoil consisting of 40 turns of the same heavy wire. Fourteen steel- wire pega or nails are set equally on a board about the circumference of a 4 1-8dnch circle, The wire is passed outside one peg, then inside two, and 80 on for 40 turns. Becure the titns with waxed thread and remove the windings from the pegs. The tickler coil, 1.3, consists of 12 turns of No, 18 bell wire wound like EAGUE PUBLICATION, AT RIGHT, COILS L2 AND L3, than No. is the cases where wire larger 16 B & 8 is used, The resistanee in the things that are near the wire— the tube on which the wire is wound, the varnish with whieh the coil is painted, sometimes even the insulation of the wire itself,” For the reason the colls of this set are practically wound on air and kept japart from other materials Only One Control The condenser, which is the only tuning control on this set, also must be clear of all possible resistonce, “In general,” explains Kruse, “a good variable condeneer is of the air type and is bullt so that leakage must g0 through long paths in material that is not teo thick or wide.” The insulating material good-—hard rubber or molded lite, for instance, Trouble from hand capacity would be practically eliminated if the wire to the grid leak and condenser comes from the stationary plates, and the wire to the filaments comes from the rotary plates, ! Even the tube socket must be of | porcelain, hard rubber or molded bakelite to reduce resistance as much |as possible, Any other kind of socket, like fiber or “molded mud,” | spolls the tuning must bhe bake- Now 14 12" by Radio Gym classes by phonograph and now radio—well, we jnst can't escape these body developing exercises. are getting radio lessons in physical training every morning, so that they will have no eveuse for plumpness hereafier. Now Notice | how much one of Ned Wayburn's chorus girls enjoys it, above. housewives FEVPTPIIVITTPPITVITVITIGY EVOICES IN THE AIR } FEVTPPPIPVVICVITIOFVICIIIE Monday, April 21, 1921 KDKA St (Westinghous rittsburgh. Organ Recital, “Camping in New Eng- §:150 P, 0o I M.~ . M.—"Look Ahecad Over the t Iieports. . M.—Radio Girl Scout Mcet- M. “Political it to Wilson". M.—Concert. Ariington time signals. P'arties; (Westinghouse—=Springfield ), 6:00 1, M. M. Dinner coneert. Bringing the Werld to Books at the Springficld City , M. M, Bedtime story. Concert, Arlington time signals. KYw (Westinghouse of Chicago). M.—-News, financial and ket and sport summary. 6:18 to 6:28 P. M, 6:33 to 6:43 P, M 6:45 I M. — Children's bedtime story WRC Corp. of America ington, N. « (Radio Wash- 6:00 I, 6:20 P. M. S8tories for Children, M.—A Talk on Education. (Weetinghouse, Boston) 6:00 p. m.—Dinner concert, 7:00 p. m—*"Bringing the World to America,” Late news, New books at the Springfield City library, 7:30 p. m.—Bedtime story, 7:40 p. m—Coneert, 9:45 p. m,—8econd and third acts the “Hidden Tdol."” WOX (Detroit Free I'ress, Detroit). | £:00 p. m.—Dinner concerf. | 7:00 p, m.—Musical program. WHAZ (Renssalaer Polytechnic Tnstitute, I 200 p. m 9:30 p. m. 10:30 p, m. swers to questions. 11 p. m.—Concert, Rust" WEAK (American Telephone and Telegraph Co., New York City) 10 planist: player; talk. 7:30 talk; glass Laritone; to 10:30 p. m.-—Daily Iyric soprano: musical talk on clocks; WNAC (8hepard Stores, Boston) 6:00 p. m.—Children’s half-hour, 6:30 p, m—Dinner dance, §:00 p. m~~Chauve-Souris, woc (Palmer Schoel of Chiropractic, Dav- | enport, Towa) Sandman's visit Sport news and weath- 8:30 p. m. 6:50 p. m.-~ er forecast, T:00 p. m. £:00 p. m. Eduncational lecture, Musical program, fusical program, wsn (Atlanta Journal, Atlanta, Ga.) % to 9 p. m—Wendall Hall, 10:45 p. m.—Masic. Wiz , New York City) (Aeolian Hall, arden talk and an-- | Sport | talk; 6:00 p. m.- nomy—LDroblems of the City of York 7:0 New tedtime story. m.—"Dogs—Pomeranians.” The Outlook. prano. ey organ recital. port talk. oncert, Moulin Itcuge p. orches- WwWoo Wanamaker, (John Philadelphia) . m.—Dinner music, ~~Weekly health talk, m.—Tall Cedars Banc —Orehestra, Time signal. . m.—Weather forecast. m.—Organ recital, . m.—Dance program. . m, (General Elcctric Co., Schenectady) p. m.—-Produce and stock quotations: naws bulletins, Review of week's sports Musical prog-am. G100 market 6:15 p. m. TiAd poom. wAAMm Nelson Co.—Newark) “Harmony with zest.” Review of current successes of the metropolitan dramatic stage. 9:15—Brandorfl string quartet, 9:45 — “Wrestle Your Way ngth,” to 10 10:15 1 Raritone, Coneert violinist ~Concert pianist and com- pose 10: tors. “Cotton Picker Syncopa- 11: vlish syncopato wen and 'l (Federal Tel, 1. Co. Buffalo) 6:30 p. m.—Dinner musie, T:30 p. m—Digest of the "!v' we "ublic S&chool prano soloist, R enor soloist, Bari- =olol Vielihlst, Piano, H h Piano soloist, oprano soloist, Italian singers r accompaniment, 3 0 p. m.—Duet in Hebrew, 10:80-10:45 p. m.—Reader, 10:45-11 p. m.—-Baritone soloist, 11:30 p, m.—Dance orchestra, WHN Btate Theater York City) ~~Orchestra, —Songs. 7:55 p. m.—Greenlee and {entertainers, 5:00 . e Ages.” P » » P ' P tone (Loew's Bldg. New { : m.—"Footwear Through th | m.—People's Concert, m.~Violinist, m.-—~RBernard Mann, m, farcis Schupae m nging. m.~-Saxophone and \ocal { P | chestra, 9:45 p. m. | 10:00 p, m.- | 10:15 p.om. tra, | 10:45 p, m.—Bert Gilbert, Concert pianist, Soprano, ~Loule Cohen's orches. 11:00 p. m.—~Tenor, 11:05 p. m.—Baritone, 11:00 p, m.—Planist, Singing. i30 p. m.—Ted Berger's orches- Soprano solos, | tra, | wir i (Gimbel Bros, Philadelphia) 6:05 p. m.—~Walter Swartz orches. tra. 6:45 p. m.--Market Reporte, 700 p. me~Bedtime storics ‘roll call, | wri and Radio Batteries 95 Amp. Hours 192 233 See Us Before You Buy O'NEIL TIRE - BATTERY CO. 39-15 WASHINGTON STREET e ZINES VWL, ¥, v AL Rapio TEL. 900 H / ARy LY PR 1N 774N 77 v\u\ ,7\\"" S (Strawbridge and Clothier, Phila.) 6:00 p. m.—*"Sunny Jim,” the Kid- dies' Dal. 6:30 p. m.—Orchestra and baseball scores. Lifchoats Bafer. Sea disasters will be hereafter. with radio receiving and sending sets fitted on lifeboats. The North German Lioyd liner Co- has six 'of its lifehoats with radio sets for emer- “enjoyed” new lumbus cquipped gencics. Hearing Again. Another example of restored hear- ing through radio comes from Farm- dale, Til, where Helen Houston had lost use of her ears after an opera- tion. A high note from a singer {from WOC, Davenport, la.. is said to have broken her deafness. Radio Protests. Radio manufacturers have entered a protest mgainst the plan to tax radio instruments. The proposed tax arranged by the senate finance coni- mittee, wonld bring in an additional e of $10,000,000 from this in- 36,000,000 in this estimated tubes are some in It is vacuum country, use - o mm— e An engine beli iy the signal for entering and signing off, adopted by CKCH, Ottawa. Some experienced radio operators can receive two or even three wire- |less messages at the same time, Arrangements and beauty of a re- ceiving set should be secondary to its efficiency. For every dollar spenton furni- ture in this country, 33 cents go for radio equipment, Brazil has granted permission for | the construction of four new broad- casting stations there, Radio amateurs at El Paso, Tex, [found the interference they had | been getting came from street lights. Another 1,000-watt station has entered the air. | tion WHO, Des Moines, Ta. broadcasting 1t is sta- As far back as 1909, Lee De Forest, radio engineer, succeeded in broad- { casting Caruso's voice in “Cavalleria | Rusticana.” ' A single conversation over the | telephone is said to occupy only aene- | sixth of the line wires—plenty of room for wired radio! RADIO 11 oughing It With Toughs.” day’s | Drayton | m.~~Dancing Carnival or- | RADI By R;y Grove OLAS Also A Complete Stock of Radio Parts THE Spring & Buckley ELECTRIC CO. 78-81 CHURCH ST, ) /l‘/(i l\‘: \\ 271, LY F - TEL. 2240 = T CROSBy, We feature the Neutrodyne Set. Sets constructed to your order with accuracy that only our years of commercial ex- perience in this field can accomplish. Consulting service on sets of any make at all times. Complete stock of parts. JOHN T. CROSBY Formerly Radio Operator With Marconi W ir_dess Co. and U. S. Quartermaster Department 141 MAIN STREET UP ONE FLIGHT