THE RADIO WORLD

Hawke's Bay Tribune, Volume XVII, Issue 214, 24 August 1927, Page 9

THE RADIO WORLD

GENERAL NEWS AND NOTES HAWKE'S BAY SOCIETY ~ (By “Valve ”) Tlie Hawke's Bay Radio Society held a meeting in the Y.M.C.A, lounge on Friday evening last, when certain items of interest to listeners were discussed. Mr Rees answered a number of quesions put to him bv a rather small gathering of members. It is a great pity that the members do not make a better response to the secretary's reminders of the holding of a meeting, but perhaps the weather has had something to do with it. It is to be hoped that future meetings will be better attended, for there is no lack of .interesting matter to i,e discussed, and listeners will find no better way of spending an “off” evening than by chewing over their problems with others who come up against the same things. Perhan*; when Hastings is “on the air” it might be arranged that one of the society’s meetings can be broadcast, and all listeners in the district would be able to attend without leaving their beloved sets. Listeners! that day is not far distant, and vou can speed things up by giving vour help. The society is doing its utmost for you Each help a little, and it will be able to do much more. I don’t mean that vou will all want to tune in to a broadcast of the Radio Society’s .meeting but those of you who have heard the programmes of 4ZB. the Dunedin Radio Society’s station, will have some idea of the pleasure that such a station gives to listeners, and there is ho reason whatever why a station in Hastings should not be every bit as good as 4ZB. RADIO DICTIONARY. Crystal Valve Receiver. —A wireless receiver in which a crystal is employed to rectify the oscillatin ’- aerial current. and a valve is introduced for amplifying the current. Cycle.—A complete current oscillation or wave impulse rising from a mean value to a maximum, then falling to a minimum or rising to a maximum in the reverse direction, and back to the mean valve again. Damped Waves. —Separate trains of waves in each of which each succeeding wave is weaker than tils preceding wave. Detector, —Device such as a crystal or valve for detecting oscillating currents produced b” elect**magnetic waves Dielectric.—A non-conductor of elctricity. The term is generally used to denote an insulating substance which is used so as to permit inductance to take place through it.. The insulating substance used between the metal plates of a condenser. Direct Current. —An electric current of which the impulses are all in the same direction distinguished from an alternating current. Also known as ‘.‘continuous” current Direction Finder. —A wireless receiver which, with a directional aerial, enables a transmitter to be located. Down Lead —That portion of an aerial wire, more or less vertical, lending from the horizontal or overhead part of an aerial. Dual Amplification.—A method by which a valve is first made to maw-ni-v high-freouency variations, which are then rectified and passed through the same valve again for further amplification. TROUBLES. It is not possio*e to ueai with the dittereut me.nous 01 nooning up seis wiuioui going uno a lair amount 01 uetuu. ouch pans ub naubioriuvib, gnu-leaks, em., are uenueu iu tue Dictionary, ' anu tiiobo wllo wish to go luruier are auvised io buy a text boon. As was stated in our first article, this short senes was iineuued to give some general knowledge ot t{ie principles, anu it is nopea that tney nave served Hie purpose. in conclusion we will set out a few uiunents which atruct sets, witn tfieir probable causes. If you get no signals there are sei oral probable causes. If the tubes do not light, the tube may be burnt out, or the A battery bad>y connected or dead. If the tubes do light but there is no click in the ’phones when the plug is removed, your B battery may be badly connected, or dead. If the tubes light and click, test the “earth.” If getting weak signals, and the set appears 0.K.-, or will not tune, try the “earth” and ’’leadin” connections. If the “rheostat” has to be all the way on for best results, your A battery is flat. “Clicks” can be traced to bad connections. That steady low hum which bothers some listeners at present, is caused by power lines. Try placing your aerial perpendicular to the power-line. If you are having any difficulty with your set, this column is always at your disposal, and we will be only too pleased to offer whatever help and advice that we can. PROGRAMMES FOR TO-NIGHT. IYA Auckland.—7.ls: News and information session. 7.30 to 7.45: Talk on “Esperanto” by Mrs. J. L. King. 8: Chimes; relay of overture from Prince Edward Theatre, Mr. Geo. Poore conductor; vocal, the Asquiths, thirty minutes’ drawing-room entertainment; weather report; relay from Prince Edward Theatre, and assisting artists. 2YA Wellington Silent day. 3YA Christrhurnh.- 6 pm : Children's session by Uncle Jack. 7.15: News and reports. 7.30: Addington market reports. 8: Chimes ; relay of orchestral selections from Everybody’s Picture Theatre Orchestra under the direction of Mr. W. J. Bellingham, F.S.M.; and assisting artists. 4YA Dunedin.—Silent day. 2BL Sydney.—B p.m.: G-P.O. dock and chimes, Broadcasters' Topical Chorus, Canterbury District Band (bandmaster, Mr Stan Nicholls), broadcast from Baker’s Hall, Campsie, Mr. Jake Friedman (comedian, late of the Veterans of Variety. in a comedy and singing act). Cec Morrison and his Gloomchasers broadcast from the ballroom of the Bondi Casino. Mr Alfred Wilmore (tenor), Mr Harry North (concertina solos). Madame Goossens-Viceroy in a recital of song; Cec Morrison. Broadcasters’ all-sports expert will talk on boxing. Cec. Morrison Mr. Alfred Wilmore, Mr Harry North.

Cec Morrison, “Sun” news items, Cec Morrison. 3LO Melbourne.—B p.m.: Mildred and Connie, song, piano and violin; Mr F. W. Trotter, “Sydney Harbour Bridge” ; Bach's Mass in B Minor, by the Victorian Postal Institute Choir, with full orchestra; Joe Aronson and his Synco-Symphonists, orchestral music. 4 QG Brisbane.—B p.m.; Studio concert.