THE COMING WEEK.

New Zealand Herald, Volume LXVII, Issue 20570, 22 May 1930, Page 3

THE COMING WEEK.

PROGRAMMES FROM IYA.

Sunday.—Belay of o\ r ening service from tho Beresford Street Congregational Church, preacher, tho Rev. Lionel B. Fletcher; relay of Auckland Municipal Band concert from the Town Hall. Tuesday.—Topical talk by Mr. A. B. Chappell, M.A.; special programme of operatic music with appropriate vocal numbers. Wednesday.—Relay of community singing at Town Hall from 12.30 to 1.30 p.m.; talk on " Health and Diet " by Ma dam o Mabel Milne; programme by the Auckland Artillery Band under Mr. Wynne Smith; numbers by the now Salon Trio; gramophone lecture-recital. Thursday.—Afternoon talk on " The Arrangement of Kitchen Equipment "; selections by Mr. Ivan Perrin, novelty pianist; presentation of a " Pierrot Phantasy " by Mr. Elton Black and Miss Alice Bennetto; items by tho Orchestral Octet; dance session. Friday.—Miscellaneous studio programme; numbers by the Studio Trio; special gramophone recordings. Saturday.—Relay of concert by the Auckland Municipal Band from the Town Hall; danco music. A radio presentation of "The Merry Widow " will bo broadcast from 4YA, Dunedin, next Monday evening. Miss Doivthy Youd, a former wellknown soprano at IYA, will bo appearing at 4YA next Wednesday evening. " Yo Olde English County Fair," an atmospheric radio scena, will be presented from 3LO, Melbourne, next Monday evening. Lelunann's colourful song cyclo " In a Persian Garden " will be a feature of the programme from 2FC, Sydney, on Monday evening. ACCEPTOR WAVE-TRAPS. The acceptor type of wave-trap is so called because it " accepts" the waves from the unwanted station and disposes of them in its own way. This typo of wave-trap is introduced across the aerial and earth terminals of the set, and its function is to provide an alternative path for the incoming signals. When tho wave-trap is properly adjusted for waves of a particular wave-length, it is much easier for thoso impulses to pass through the wave-trap than through the receiver, and consequently the trap, so to speak, short-circuits the receiver, so far as these waves tiro concerned, and runs them to earth by an easy path, thereby preventing them ' from passing through the receiver.