Page 27 Advertisement 1

Radio Record, Volume III, Issue 5, 16 August 1929, Page 27

V11 Procurable Jt % and Voli U1_ "md English Bage 30/- 2 Lowelt _ Eaormows BE amplification withopt the 480 of any external neutralising i the outstending advantage of the new PERFECTED Mullard PM: Screened Grid valve: So great i8 this amplification factor _ SGREENED actually from 60 to 98 much n5 80 per Grid VALVES HR stege -that one Mullard Screcned Grid Valve Iney advantegeously be BY employed where two HF: stege8 ate MWIELARD DOw? necessary: Moreover, reaction cad often be dispensed with entirely: SGet Dowble tbus simplifying receivcr design and txE DISTANCE ? greetly improving quality. The lowest possibk anode The screened Grid is additionel to the and flament consumbtion usual filament; grid and anode; and i8 is achicvcd by the skilful design and consinection of situated between the grid and theanode the ncW improved Mullard effectively screening one fron the other Screened Grid valee. and reducing capacity feed back to 4 The 4 volt (PM: 84 takes minimum: Theconnection to thescreen 0 flament curtent of only is tbrough the normel anode pin, the 0.875 ampa while the 2 volt anode being connected toa terminal on vatue (PM 13) requires the top of tbe valve: Thus the Mullard To mote.than 0.15 amp: Soreened Grid Valve;" cam be plugged This is duk 5 months of into any standard type of valve-holder: Galoratonte "raxnuereseaick Gndco C0 t nmarkabls efiicicngy of the wonderful Mullard PM: flamcnt Mulard The now Mullard Ac Valve will ft any American Electric Set THE MASTER VALVE' and improvo results. Advctt The Mullard wreley Se#a Co- Lal Mullard Hour; Dinmer 3r London VC} OBTAINABLE From ALL GooD RADIO DEALERB: In % 4 and 8 volb UX end Engllab Dase 3z Selllug Agentu: BPEDDING, LTD Box 482, Auckland; Box 1581 Wellington; Box 922, Christchurch; Bor 616, Dunedin: CONSUMPTION-HICHEIT "EFFICIENA