Ce-Co Teabes tested against 27 Other makes alone show Io loss Of efficiency after 1ooo hours j009 arg Tubyd 9o0 Bo0 7oo 600 25 So0 Orena~ Leke 400 2 500 AVERAGE MUTVAL OiNDUCTANC 0 5 06 'Tu8es During Lfg Test 200 EF 5 VOLTS 5e6 N875781 9426 Ep = 675 VOLTS Chr Joo z00 S00 400 S00 600 8D0 90d iooo TIME IN #OQBS Buy Tube; 35 You do other goods_~on 3 basls 0z value, Tou want clearer reception, full volume; natural tone: Thege Ce-Co Tubes will give. Ce-Co Tubes, made by the lergest; exclusive Tube makerz Jm the world, AI0 bpecified and endorsed by great radio authorities; Including Browulng; Lynchy Oockaday, Harkness; Hurd, Best; Bernard, Hennoy, Millen and others, A types avazlable. Prices Erom 9/8 each; Bond & Bond Royds_ Motors Ltd Cbristchurch, 'Aucklend, N3 Agonte; doreh Iolend Dletributert AveRAGE
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https://paperspast.natlib.govt.nz/periodicals/RADREC19280713.2.43.1
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Radio Record, Volume I, Issue 52, 13 July 1928, Page 10
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139Page 10 Advertisement 1 Radio Record, Volume I, Issue 52, 13 July 1928, Page 10
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