Page 13 Advertisement 4

Radio Record, Volume V, Issue 20, 27 November 1931, Page 13

The Standard Inaeproved Ferrand ladeetor Dyeanaie Speaker In constructlor and princple OL operation tho new Ferrand Ioud- speaker repregents a departure from the Dynamic Speakez 89 know uP t0 the pregent Uallke the old Dynamicg tbe Inductor utliges 0n6 O-shapped magnet t@ gwpply lts fxed magnetic field, ingtead 02 requlring some external feld-energiging sourcO: In place 0f thbe agual moving coil the azmature j8 Of moving Iron apd 18 compoged 02 #F7o geparete bars connected by te-rods, each bar workdng between jt8 regpectiye pole feces: Space doeg not permit of 8 full and complete degcription of the daw Speaker but, according t0 leading engineerg Of the industry wbo have investigated the Speaker, It i8 destined to supplant other types even more completely tban the Cone-type Speaker gupplanted the Hora- type Speakers 8 few seagons ag0. Ask your Dealer for frea CopV of pamphlet; giving full information in regerd to thie new Speaker. Standard Telephones and Cables (Ajsia) Limited, Head Office; GPO: Box 638, Wellington: Auckland: GPO: Box 1897. South Island: L B SCOTT, LTD , Christchurch , Alel