82 Yaa RiN{Ris 2 4,0 V 0,15 A = 50-IS0v 1 64 ThE 18*4 STIEDER Tine JLOPE THE BETTER ThE VALVE Thecurves of Philips Mina Tr Iwatts SOAR up -they're higher-they' re steeper The slope of a valve tells you much-for the steeper it IS the greater the change in the plate current-grid voltage ratio, higher effciency, and of course the louder and clearer YOmf music. T" A Mite 6 JE INDIVIDuAL DutL IM] STRUMENTS Mb Prbp a 30 -40 E Tt 67 N Jdpt of Phaips Lamps (N.2) Ltd., (Badio Dpt }, Hore Gibbons Bldg Coustetay Plact Mantryrt Branch Room : 611 Dilwerth Buildinge, Aucklend. 07 L Hilies] Mit
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https://paperspast.natlib.govt.nz/periodicals/RADREC19290426.2.37.2
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Radio Record, Volume II, Issue 41, 26 April 1929, Page 11
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107Page 11 Advertisement 2 Radio Record, Volume II, Issue 41, 26 April 1929, Page 11
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