microphone at the wireless studio. As electrical vibrations, sound can be transmitted over great distances. When it reaches yOuI set it is strengthened, its form slightly altered and then passed on to the phones 01 loudspeaker, whose duty it is to reconvert the elec- tricity to sound waves: EXIT HUM Plse for Lovas FLAWLESS RECEPTION For BCREEN GRID end ELL OTHER A0 Bote Obtainable at all good Radio Dealerg Factory Represenvativeg : RADIO LTD. Commerce Building, Anzac Avenue, Auckland. ARCTURTS BLUE 6 VALE VES
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https://paperspast.natlib.govt.nz/periodicals/RADREC19310911.2.26.1
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Radio Record, Volume V, Issue 9, 11 September 1931, Page 9
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83Page 9 Advertisement 1 Radio Record, Volume V, Issue 9, 11 September 1931, Page 9
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