WIRELESS FOR ALL AND SUNDRY.

Star (Christchurch), Issue 17999, 9 November 1926, Page 4

WIRELESS FOR ALL AND SUNDRY.

NOTES ON PROGRAMMES BOTH NEAR AND FAR. BY "AERIAL." The undermentioned New Zealand and Australian stations, usually heard in Christchurch, will he “on the air’’ to-day as follow*. In the case of Australian stations, New* Zealand time is given:— New Zealand Stations. IYA, Auckland, 420 metres, 500 watts—3 to 4.30 p.m., musical and other items: 6.30 to 7 p.m., children’s session ; 7.15 to 7.45 p.m., news and market reports; 8 to 10 p.m., concert session. Programme: Chimes: pianoforte solo. “Second Liebestraume” (Liszt), studio pianist; band, Arizona Jazz Band; soprano solo, “The Dove.’’ Mrs 11. Cook; tenor solo, “Ombra Maifu” (Handel), Mr M. Drake; song, Mr D. M’Minn; contralto solo, “Down Here’’ (Brahe), Mrs Bean; musical saw, “The Maori Moon,” Mr R. Kelso; band, Arizona Jazz Band: contralto solo, 1 “Coming Home,” Mrs Bean: violin solo, “Chon Rosmaria” dKreisler), Miss P. Best; band. Arizona Jazz Band; relay of orchestral selections from Prince Edward Theatre; soprano solo, “Ships That Pass,” Mrs 11. Cook: musical saw, “Silver-Haired Mammy,” Mr R. Kelso; band, Arizona .Tazz Band; violin solo, “Polichinelle” (Kreisler), Miss P. Best; tenor solo, “At Dawning,’’ Mr M. Drake; song, Mr D. M’Minn: band, Arizona Jazz Band; song, Mr D. M’Minn. 2YK, Wellington, 295 metres, 320 watts—3 p.m. to 4.30: p.m., items and relay Manuel Hyman's Exhibition Band from the New Adelphi Cabaret; 7.45 pm. to 10 p.m., announcements, studio concert arranged by Mrs G. A. Ginn, interspersed with relays of orchestral selections by the Paramount Theatre Orchestra, under the direction of Mr R. R. Caulton. 2YM, Gisborne. 260 metres, 500 watts —May be operating from 8 to 10 p.m. 3YA, Christchurch, 400 metres, 500 watts—Afternoon session, 3 to 4.30 p.m.; news session and announcements, 7.15 to' 7.45' p.m.; 8 to 10 p.m., studio concert. Programme: Piano solo, Prelude in G Minor (Rachmaninoff), Miss A. Loughman; vocal solos, (a) “I Did Not Know” and (b) “A String of Pearls,” Mrs Pawson; clarinet solo, selected, Mr R. Wilton; tenor solo, “When a Charmer Would Win Me,” Mr D. Law; piano solo, “Humoreske” (Dvorak), Mr R. C. A. Jones; vocal solo, “Mountain Lover,” Miss Norah Nottingham; violin solo. “Madrigal.” Mr J. Gallagher; clarinet solo, selected, Mr R. Wilton; vocal solos, (a) “When You Come Home” and (b) “Until,” Mrs Pawson; piano solo, “Danse Negre” (Scott), Mr R. C. A. Jones; vocal solo, “Sympathy,” Mr E. 11. Davies; vocal Solo, “Ave Maria,” Mr D. Law; violin solo, selected, Mr ‘J. Gallagher; vocal , solo, “The Old Refrain,” Miss Norah Nottingham; relay of orchestral 'selections from Everybody’s Theatre under the direction of Mr W. J. Bellingham, F.S.M.

4YA, Dunedin, 380 metres, 500 watts —-7 p.m., children’s session; 7.30 p.m., news session, weather reports and forecast, shipping notes, stock and market reports, sporting news; S p.m. to 10 p.m., studio concert by the Musselburgh Presbyterian Church Choir; Part songs, “O Who Will o’er the Downs” (de Pearsall) and “Spring Song” (Pinsuti); the choir; vocal solo, “Pleading” (Elgar), Mr H. A. Johnston; ladies’ part songs, "Daffodils Are Here” (Ronald) and “Sunbeams” (Ronald), the choir; vocal solo, “The Little Blue Bay” (Mortimer), Miss C. M. Law; anthems, “To the Great Lord” (Rossini) and “The Sun Shall Be No More” (Woodward), the choir; vocal solo, “The Devout Lover” (White), Mr A. Mitchell; part songs, “O Peaceful Night” (German) and “Lass of Richmond I Till* (Hook), the choir; vocal solo, “Sing Sweet Bird” (Ganz), Miss E. Morrison; ladies’ part songs, “Sweet Briar” (Sommerville) and “Barcarolle” (Tosti), the choir) ; vocal solo, “Muleteer of Malaga,” Mr J. T. Allan; anthem, “Harken Unto Me” (Sullivan), the choir; vocal solo, "Oadie Song” (Schubert), Mr R. Mitchell; vocal solo, “I Envy Every Circlet” (Finden), Miss B. Feichley; anthem, “O Gladsome Light” (Sullivan), the choir; vpcal solo, “Angus Macdonald,” Mrs J. Melser; part songs, “Sweet and Low” (Barnby) and “Good Night, Pretty Stars” (Johnston). the choir; vocal solo, “Ave Maria” (Kahn), Miss P. Clair: hymn, “There Were Ninety and Nine,” the choir; vocal solo, “I Seek for Thee in Every Flower,” Miss J. Cassells; vocal solo. “Sea Fever” (Coningsby Clarke), Mr O. H. Elliffe; hymn, “Abide With Me.” the choir. Australian Stations. 2GB, Sydney, 353 metres, 1500 watts —May be operating from 9.30 to 11.30 p.m. 2BL, Sydney, 353 metres, 1500 watts —7.30 p.m.. G.P.O. clock and chimes, children’s hour, markets, etc.; 9.15 p.m., country news; 9.30 p.m. to midnight, concert session. 2KY, Sydney, 280 metres—9 p.m. to 11.30 p.m., concert session. 2FC, Sydney, 442 metres—7.3o p.m., chimes, announcements, children,s hour, news, etc., and studio items and relay until after midnight. 3LO, Melbourne, 371 metres, 5000 watts—4.3o to 6.30 p.m., studio concert, news, etc.; 7.15 p.m., children’s hour; S.lO p.m.. news service, etc.; 8.50 p.m., French talk by Mme. Soward; 9.10, lecture under the auspices of the University Extension Board; 9.30, musical lecture by Mr Fritz Hart on Wagner; 10.30, Dr Loftus Hills on “Popular Science.” a lecture under the auspices of the A.A.S.C.; Bert Ilowell

and his concert orchestra, transmitted from the Yictory Theatre. St Kilda; 12.10 am., news service, dance music until 1.10 a.m. 3AR, Melbourne, 484 metres, 1600 watts—4 to 6.30 p.m., musical items; childrens session at 8.15 p.m.: concert session from 9.30 to 11.30 p.m. 4QG, Brisbane, 385 metres. 5000 watts—s to 6 p.m., musical items: children’s session at S p.m., followed by farmers’ session, news, markets, etc.; 9.30 to 11.30 p.m., concert session. SOL, Adelaide. 395 metres. 5000 watts etc.; 9.30 p.m., news, markets, etc.; 10 p.m. to midnight, chimes and studio concert. 7ZL. Hobart, 535 metres, 250 watts —Children’s corner starts at 8.45 p.m., followed by news. etc., at 9.45 p.m.. and general entertainment until about 1.45 Last Night’s Concerts. Did not get home until 9 o’clock last night, but Mrs “Aerial” had Horace performing. Questioned as to the kind of concert 3YA had put on so far, the youngest of the family announced that “the man who sang ‘Beneath Thy Window’ had a soulful A*oice.” So now you know. It was-a decided improvement having two microphones in use at the races yesterday afternoon. Tried out a “W.A.S.” crystal set on 30ft of wire, indoors, and found results quite good. The set used was in skeleton form and would have given better results, doubtless, had it been made up. However, this first test showed that, using 4000 ohm ’phones with an indoor aerial, close to 3YA, the “W.A.S.” circuit gives very strong signals. X X X The last half-hour of 3YA’s transmission comprised a relay from the Caledonian Hall—dance music. The station announced it would be on the air (for the first race it is hoped) from about mid-day to-day, when a description and results of the trots will be broadcast. Of the Australian stations. 2BL, Sydney, was again the best for strength. One or two Oswalds haunted this station most of the evening. There was little static but fading was noticed on most of the stations tuned in. % :: At last night’s meeting of the City Council the Entertainment Committee reported that the Radio Broadcasting Co. of N.Z. had applied for permission to broadcast some of the band concerts from the rotundas. The company had intimated that no concert would be broadcast without the consent of the council being first obtained, and the committee recommended that it be authorised to grant the necessary permits as application was made. The necessary authority was granted. THE BEGINNER. NO. 6. v . Before starting the wiring of our set. I will mention one or two points that have been brought to notice by constructors of the “W.A.S.” set. To begin with, the tapers used in building the coil are put up in packets of about six dozen and cost lOd a packet. The next point is in regard to fixing them on the cardboard tube. Twelve tapers should be used as this number, evenly spaced round the tube, keeps the wire clear of it and makes the coil a true low-loss one. It will be found more convenient to cut the twelve tapers to size first—each eight inches long—and then fix them to the tube by using an old chisel or file or something similar, heated fairly hot and, holding a taper in place, apply the hot iron for a moment oil the taper at each and then at the' centre. The wax will melt and this will hold the taper fast to the tube. One more point: In making the taps for the coil, do not make them too large. Bare the wire first and then make a small loop, twisting it several times. Now for the soldering job. Use a small soldering iron. You can purchase one about £lb weight at any hardware shop or you can buy a piece of copper red at a coppersmith’s. Get a piece about Sin diameter and about 4 inches long. With a hammer and the back of an old axe. slightly flatten one end. Bore a small hole through and put through it half of about a twelveinch length of fairly thick fencing wire. Bring the two ends of the wire together and twist up tightly. Fix this into a handle of soma sort. Then file down to a four-sided point the end of the copper rod and you have a cheap and handy soldering iron. You now want some flux and some/ solder, or you can purchase the two' combined in the form of “resin core solder,” obtainable from most hardware stores. Do not use spirits of salts or any other corrosive flux in the construction of a wireless set. Obtain an ounce or two of lump sal ammoniac. Dissolve it in a little water and keep in a wide-mouthed jar. This makes an excellent cleanser when your soldering iron gets dirty. In such a case, heat your iron well, dip it for an instant into the ammonia solution, and it will come out clean. Dip the point in a little flux and tin it with solder. Do not have your iron too hot. When the flames of the fire in which your iron is heating show a green tinge the iron is about right. Take it out, rub briskly on a piece of sacking to clean the point, and apply to the joint to be soldered, holding a bit of the resin-core solder at the join. Do not use more of the solder than will do to fix the join. Too much solder makes the job very unsightly. We are a long time getting to the actual job, but J think we are ready now. A quick way to strip the cotton covering off the wires, if it is done carefully, is to burn it off with a match. In any case use a small piece of fine emefy cloth (a little bit glued on the end of a stick does well) to clean the taps on the coil and the shanks of the terminals and other connections of the instruments on the back of the panel. Get a cloth, damped in cold water, and lay on it the panel, face down. (This is to assist in keeping the ebonite cool while soldering the connection?.! The panel is laid face down so that the three aerial taps are on the right-hand side of it. Take the coil and carefully solder strips of wire (same size as used in making the coil will do) about four inches long, to each of the taps on the coil. This is done by baring an end of each strip of wire and cleaning it with emery cloth. Put this through the loop of a tap, turn it back and twist. (See vou do not untwist the tap!) Then solder. Do each tap in turn until all fifteen taps have lengths of wire attached. Now back to the panel. Solder a wire from the shank of the switch arm to the earth terminal. Solder another wire to the cat’swhisker terminal and the nearest of the two phone terminals. Now place the coil close to the panel—as close as you can for convenient working with your soldering iron. Solder the wire (after cutting off any spare, oi course) on the twenty-eighth turn of the first half of the coil to the aerial terminal nearest to the right edge of the panel. Solder the wire of the thirty-eighth turn to the middle aerial terminal and that of the forty-eighth turn to the third aerial terminal. Now for the twelve taps. Solder the wire of the first tap—the one at the commencement of the second hah

of the coil—to the switch contact on the extreme right of the half-circle oi contacts. Then do likewise, with the second, and so on until the whole twelve taps are connected to their respective contacts.

Take the free six inches of wire at the very beginning of the coil and

solder this to the crystal terminal on your detector unit. Then take the free six inches of the last turn of all on the coil and solder it to the second 'phone terminal. Clean all dux oft' with a piece ot rag. Go over all the wiring; check the connections with the diagram previously published in the “ Star,” see that all soldered connections are holding fast, and put panel and coil into the cabinet and screw’ down. This series will conclude to-morrow with a few hints on crystals and ’phones. ANSWERS TO INQUIRIES. “ Aerial ” will be glad to answer any questions pertaining to wireless, or give advice on the subject. Correspondents should give their riames and addresses, not necessarily for publication. To E.H.C. and ll.D.—Will post you diagram and particulars of “W.A.S.'s” set.-— 1 Aerial. ’ CARDBOARD TUBES Cardboard tubes of correct sire for making up the famous W A S. crystal receiver can be obtained at the " Lyttelton Times ” Office, price Is each.