Unnumbered Page Advertisement 1

Radio Record, Volume I, Issue 3, 5 August 1927, Unnumbered Page

The ALL BPITISH Radio Valve With a Published NA TIONAL, Physical Laboratory TEST The Highest Confidence Reeist that can be shown by manufacturer in his dlo product is to submit that product to the recognised Government laboratory for their Sectional impartial report, and to publish that report Vicwu of in its entirety. PM. Valve The essence of the remarkable results shown 8 by the above test report is undoubtedly due to the achieverent of the Wonderful . PM Filament The honest value and better results given by this wonderful PM Filament place the Astounding Proot that TM Series of Valves in which it features far ahead of all ordinary valves; the Wonderful P. M. Thte abundant pure volume that is possible Filament from the great saving due to economical upkeep, the elimination of renewals due to MAKES A 13/6 VALVE WORTH 13/. accidental mechanical shock, and the AFTER A YEARS BROADCASTING vastly increased life, make Mullard PM: SERVICE Valves with the wonderful Mullard PM: Filament, the most valuable ana gatisfac: The National Physical Laboratory, the recog Thirdly, the generous emnission, flve and a-balf nised Government Laboratory for impartial times that of an ordinary valve flament, Bhow- tory purchase 011 the market to-day. commercial testing, were Bupplied with 2 batch of Mullard PM: Valves from stock: The re- ed one hundred per cent operating eficiency at port proves for all the valves supplied that atter the end of the test of '1000 hours' life: one thousand hours' life tesb, an gveroge of more than ninety-geven per cent: of the original pur- The reasons for these remarkrable results are in chase price waS gvailable: This meang that 8 the wonderful PMM: Filament that Cose tens of thirteen shillings and sixpenny Mullard PM: Valve 'gives you 8 year $ broadcesting service thousands of pounds to produce. The fllament MuMard for Iesg than Bixpence: Secondly , during the that caunot be brokren except by the very whole of the thousend hours' life test, che cur: roughest bandling: There is NO equal to the P. M, Valves rent consumption remained constant and equi- valent to one-seventh of the upkcep costs of BHY wonderful PM: Filament, and it can only bc can be obtained from every Radio bright flement valve: obtained in Mullard PM: Valves: Doaler in New 'ealand: Spedding, Ltd,, Fort Street, Auck- Jand, New Zealand Selling Agents. Mullard Wholesale Depots; Wellington: Spedding, Ltl,, Norwick Union Building: THE MASTER VALVE Christchurch: Leonard L; Jones, 214 Madras Street: Dunedin: Ernest E Oalder, 87, Entirely British Product: Manufacture d in England: Crarford Street; Will fit all kinds of Radio Receivers, and will give greatly improved results. Wade MuLLArd #PROTECTER PATERTS PM