{( 1) 66 9) It Puts the Talk in Talkies_ THE S-M 690 Super-Power Amplfier Specially degigned for use in Picture Theatres, Football Grounds, Sports Stadiums, Race- courgeb, or wher- ever an amplifier 0f tremendous power is required in Con- junction with the highest 'quality re- production of voice and music; 'This special am plifer operates through three stages ~two of them power push-pull- and is arranged for microphone, radio' or single or ~A double record input work It ba6 15,000 to 16,000 milliwatte distortionless: power output; Thg S-M 890 Super-Power Amplifier is now being uged in various "Talkie" installationg throughout New Zealand. Could You have better PROOF of its capabilities. It' 8 a Silver-Marshall Product: NZ MASTER AGENTS BOND & BOND,LTD: AUCKLAND:
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https://paperspast.natlib.govt.nz/periodicals/RADREC19290719.2.26.1
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Radio Record, Volume II, Issue 53, 19 July 1929, Page 8
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121Page 8 Advertisement 1 Radio Record, Volume II, Issue 53, 19 July 1929, Page 8
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