PHILIPS Miniwalt The Philips Valve is symbolical of Progress be- cause the history of commercial redio bas been the history of the valve and the higtory of the Progress! commercial valve has been the history of Philips Alwayg have Philips been ahead in valve design: The latest proof of this i8 the Penthode ~greatest tube achievement of to-day and product of the brains of the scientists in Philips Laboratories: Ia 8 WZAR ValveS PHILIPS_THE VALWES WITH A PAST AND A FUTURA Adat . of Philips Lamps (NZ) Limited. Head Offce: P.o. Box Wellingtont. Branches: Auckland-~Paykel' $ Building, Ansac Avcmbe. CkostcBorch67226 Tuam Stacet.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19310807.2.34.1
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Radio Record, Volume V, Issue 4, 7 August 1931, Page 11
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100Page 11 Advertisement 1 Radio Record, Volume V, Issue 4, 7 August 1931, Page 11
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