RADIO

Star (Christchurch), Issue 19201, 15 October 1930, Page 4

RADIO

(By “

“AERIAL.”

NOTES AND NEWS. Regeneration Control. On many sets nowadays the variable condenser controlling the degree of reaction coupling is actuated by a small plain knob. This certainly looks neat, but from the long-distance point of view it is not ideal for the followingreason. In summer time, or upon those occasional “ bad ” evenings that may occur 1 at any time of year, it may be necessary to make the reaction coupling rather tight in order to obtain adequate signal strength. No selfrespecting wireless man wants to interfere with his neighbours, or to spoiL his own reception by allowing his set to oscillate, but the control provided by a plain knob is not always sufficiently fine to enable this desired end to be attained. It is very much better to have a graduated dial for the reaction condenser, for one soon learns the maximum reading permissible at any setting of the tuning condensers. There is often not space for a fullsized slow-motion dial, but there are available nowadays many excellent miniature geared dials, not more than 2in or so in diameter. With these, fine adjustments are easy, to make, and. there is no difficulty in keeping the set in a sensitive condition though well below oscillation point. The Right Way To u Search.” One point not always appreciated is that searching should never be done downwards in the wavelength sense, or upwards in the frequency sense. .A. moment’s thought will show the reason. In tuning from, say, 200 to 500 metres we increase the capacity in parallel with the tuning inductance, thus decreasing the sensitivity of the circuits. More and more reaction is therefore required as we go upward in order to keep the circuits equally sensitive over the range covered by the coils. In other words, if we increase the reading of the tuning condensers and do not touch the reaction control condenser, the set will move farther and farther away from the point of oscillation—unless, of course, there is an undesirable resonance at some point in a choke or some other component. In searching upwards we can bo sure of keeping the set away from the point of oscillation. If, on the other hand, we search, downwards in a wavelength sense, a decrease in the readings of the tuning condensers unaccompanied by a slackening off of the reaction coupling may cause the set to burst into oscillation. When you arc searching, then, always make a point of starting with your tuning condensers near the zero end of their scales, and of working upwards to higher readings. American Broadcasts, Extract from a report by a British radio “fan” visitor to the U.S.A.—"It is true that to our ears there is a certain sameness about American programmes. The advertisers’ preference is stiil mainly for some kind of music; and the listener is therefore apt to find himself provided with a succession of musical programmes, with vaudeville, and an occasional talk thrown in hero and there. Talks—but not talk—play a comparatively unimportant part in American programmes; nevertheless, throughout the musical programmes there runs a continuous stream of remarks interjected by the announcers, partly describing the musical items as they come, partly bringing in some reference to the advertisers’ product. Certain lucky advertisers have discovered ‘ star * broadcast ers, whose names have become dearer to the American public than the greatest athletes or best-known public men. The comedians * Amos and Andy' are the outstanding examples of this, with their running- patter of comment on life and current affairs, centring round the activities of the imaginary ‘ Fresh Air Taxicab Corporation ’ which they have founded. Everywhere little replicas of Amos and Andy in their motor-car are to be seen in American shops, offices and homes. If the two comedians fail to broadcast or cannot bo heard by anv particular area, then there is wailing and gnashing of teeth. Slate le~is-

Matures and governors have been known to arise in their wrath, because Amos and Andy could not be heard within their borders*” TO-NIGHT’S CONCERTS. IYA, Auckland (332 metre*). 7.40: Talk, "Pottery”, Miss Briar Gardner. S.O to 10: Concert programme by members of the Jubilee Institute for the Blind. 2YA, Wellington. Silent day. 3YA, Christchurch. (306 metre*). 7.30: Addington stock market reports. 7.46: Talk on Health Week by medical specialist, "Body Hygiene". 8.0: Operatic and miscellaneous programme, featuring vocal excerpts from musical play "Our Miss Gibbs”. Overture—Marelc Weber and his Orchestra, "The Beggar Student”. 5.3: Baritone—Mr J. Graham Young, “My Yorkshire Lassie”. Duet— Salonelle Duo, ‘‘Bridesmaids”. Soprano —Miss Corrie Aslin, "Hats”. 8.17: Studio Octet, Overture from "Faust”. 8.2-3: Dramatic recitation—Miss Nancy Bishop, “Lasca". 8.29: Violin—Fritz Kreisler, "Tango”, “La Vida Breve”. 8.35; Miss Aslin, . “Romance". Valetta Duo, “Correct”. 8.40: Studio Octet, “Scarf Dance”, "Love Scene”, "Dance Circassienne”. 5.48: Contralto—Miss Dulcie Mitchell, "Mary”. Tenor—Mr H. J. Francis, "Hughie”. 8.53: Studio Octet, “March arid' Habanera.’’, “Toreador Song”. 9.0: Weather forecast. 9.2: Piano—Benno Moisievltch, “Hunting Song”. 9.5: Salon Duo, "Not That Sort of Person”. Salon Quartet —“Saturday Afternoon”. 9.12: Trio—De Groot, Pacey and Gibilaro, "O Sole Mio”. 0.15: Miss Mitchell, "In Yorkshire”. Miss Aslin and Octet, "Arms and the Man”. 9.21: Studio Octet, second Sullivan selection. 9.33; Miss Bishop, "Do You Remember?” 0.37: Salona Duo. “Our Farm”. 0.41: Studio Octet, “Laguna Lullaby”, "Serenade”. 9.47: Miss Aslin, "Moonstruck”. Salon Quartet, "Moon Fairies”. 9.52: National Military Band, "The Flying Dutchman”. 10.2: Close. 4TA, Dunedin (461 metres). 7.15: Talk—Mr L. W. M’Gdskill, "The Development of the Fertiliser Industry”. S. Debroy Somers Band, "American Medley One-step”. 5.5: Soprano—Miss T. C. Blackman, “Dear, on a Night Like This”, "In an Old-Fashioned Town”. 8.11: Kenz Orpheans, "Any Time’s the Time”. “A Little Kiss”. $.20: Recital— Miss E. Newbold, “Types at the Football”. 8.26: Banjo—Mr J. M’Neil, "My Lady Jazz”. 8.30: Bass-—Mr Edward Bond, “Mine Enemy”. 8.33: Kenz Orpheans, "Button Up Your Overcoat”, “Lazy Louisiana Moon”. 8.41: Contralto—Mrs E. Stone. "Rackety Coo”, "The Little Old Garden”. 8.47: Piano novelty—Mr B. Finlay son, "Fashionette”. 8.51: Tenor—Mr R. A. Mitchell, "Sea Fever”. “Then You’ll Remember Me”. 5.57: Weather report. 5.59: Kenz Orpheans, "Dream Avenue”, “Cooking Breakfast”. 9.7: Miss Blackman, "I Never Knew”. 9.J0: Miss Newbold, "Types at a Wedding”. 9.13: Kenz Orpheans, "Love, Sing a Song in My Heart”. 9.16: Mr Bond, ‘’Yeomen of England”. 9.20: Kenz Orpheans, “Eleven Thirty, Saturday Night”. 9.23: Mrs Stone, “My Hero”. 9.26: Kenz Orpheans, "Tt Happened in Monterey”. 9.29: Mr Mitchell, "Come Into the Garden, Maud”. 9.32: Dance session. Foxtrots, “Hand Mo Down My Walkin’ Cane”, "Happy Feet”, “Bv’ry Little Moment”, "A Bench in the Park”. 9.42: Waltzes, "Greetings of Spring”, "Sobbing Waltz”. 9.48: Vocal—James Melton, “Neapolitan Nights”. 9.51: Foxtrots, “The Woman in the Shoe”, “Should I?”, "On Her Doorstep Last Night”. 10.0: Waltzes, "A Bundle of Old Love Letters”, “Imi Au la Oe”. Foxtrots, "Fairy on the Clock”, “Only Love is Real”. 10.12: Vocal—Ernest. Hastings, "Perverted Placards”. 10.15: Foxtrots, "The Harbour of My Heart”, “Let’s Bo Common”, "Keepin* Myself for You”, “Spread a Little Happiness”. 10.27: Waltzes, "The Love of a Gypsy”. “First Love Waltz”. 10.33: Foxtrots, "Song of the Islands”, "For You a Lei”, "Nobody’s Using It Now”. 10.42: Vocal—James Melton, “Dear Little Mother of Mine”. 10.45: Foxtrots, "With You”, "I Knew We Two Were One”, “There’s Danger in Your Eyes, Cherie”. Waltzes, “My Hawaiian Souvenir”, "If I’m Dreaming”. 11.0: Close. si a in is a sb ffl a m e a a a si a g s ® a si