NEW MICROPHONE

Radio Record, Volume I, Issue 18, 18 November 1927, Page 2

NEW MICROPHONE

YH CONDENSER TYPE. A new type of radio microphone, which has proved successful in tests wt WJZ, New York; WYG, Schenectady, and KD&A, Pittsburgh, soon will be made available-for all stations, acrording to a statement made on October fi by S. W. Goulden, an engineer of the Radio Corporation of America. The new deviee known as 2 condenser microphone, is said to reduce the effect of extraneous noises caused by mechanical vibrations at the point where the programme originates. Rushing soises, often present when programmes are picked up in crowded dance halls and hotel dining rooms, are climinated by this instrument. Eliminates Blasting. "Organ music broadeasts,’? said Mr. Gonlden, "have been found greatly improved when ihe pick-up is effected in the new type. One microphone can be used, so placed that its position is at the foeal point of the vibrations coming from various sections of the instrument. It las been found practically impossible to ‘blast’ whe condenser type of instrument, even when a great smount of sound energy is directed upon it, thereby greatly improving the quality of transmission." Mr. Goulden said WEAI, New York, had already ordered one of the new inicrophones, and that WENR, Chicago, will operate -twenty-one condenser microphones in connection with its new fifty-kilowatt transmitter, which

is a duplicate of the Bellmore station of the National Broadcasting Company, The Radio Broadcasting Co. of New Zealand has already s some microphones of the condenser type. en en nee =