NOTES AND NEWS
The lladio Society of Christchurch constructed a wave meter a few weeks ago and despatched it to Australia for calibration. Word has just been received that it was ready tor return, and that, besides the ordinary curves, supplied, three different points of guaranteed accuracy had Dcen charted. A crystal control was
jsed for this purpose and has a very'j fine degree of correctness. • The wav\ meter will cover a wide band of frequencies and should prove of irn-| mense value, particularly to the amateur section of the society. I Some sixty transmitting amateurs have joined up with the new movement initiated in Auckland to form a New Zealand Association. This is giving a great stimulus to the formation of small branches which will help to build up the interest whereever a few can get together for this purpose, and is the only way to build a healthy organisation. In the ‘‘Wireless Weekly,” we read that the world famous principle of the neutrodyne was patented in England by-Mr. John Scott Taggart, throe months before ' Professor Hazelteine filed his claims in the TJ.S.A. Failingto raise any Interest in British firms, Mr. Scott Taggart sold his rights through an agent whose client proved to be the holders of the American; patents. Dr. J. H. T. Roberts—staff consulant to “Popular Wireless”—has caused a sensation in his recent discovery o_f a new valve that works by light Its filament operates on the photo-electric principle, and consists in effect of a tiny glass neon tube coated with a special chemical. “If it proves to be a really practicable proposition,” Dr. Roberts says, “it will enable a valve-set to be operated from the electric mains, just as simply as the ordinary electric light.”
New technical for wireless aerials shall not, without the. consent of the licensee for the supply of electricity concerned, be erected above or below wires used for the supply of electricity, or sufficiently near to such wires to permit of contact with them should either class of wire break, become deachod from its support, or the support fail. Wireless aerials shall not, without the consent of the Minister, be erected above or below any electric line erected and maintained by the Post and Tele graph Department, 1 '
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Bibliographic details
Manawatu Times, Volume XLIX, Issue 3497, 5 November 1926, Page 4
Word Count
376NOTES AND NEWS Manawatu Times, Volume XLIX, Issue 3497, 5 November 1926, Page 4
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