Modernised Cleaning
SIN CE the beginning of broadcasting " one of the problems of a transmitter has been that of freeing the insulators from soot or dust. As many’ listeners know this materially. affects the aerial. In some of the ‘biggest. stations the only methods have’hitherto been to lower the aerial wires, and. this was frequently most inconvenient, An American station, WOR, has developed an idea by which a balloon so which are attached special brushes is lioated against the insulators. By allowing the balloon td rise and moving it about the insulators they are ‘most effectively cleaned. ‘ --
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https://paperspast.natlib.govt.nz/periodicals/RADREC19301121.2.58
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Radio Record, Volume IV, Issue 19, 21 November 1930, Page 29
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97Modernised Cleaning Radio Record, Volume IV, Issue 19, 21 November 1930, Page 29
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