Page 14 Advertisement 3

New Zealand Listener, Volume 18, Issue 461, 23 April 1948, Page 14

0 COLUMBUS MODEL 4 An all-wave receiver with 7 valves 0 M (including magic eye tuning indi- cator) , and incorporating the new COLUMBUS 102" Permanent magnet elliptical loudspeaker. 544/10/-. Height 8 M4l Width : 194" 8 Depth U The illustration, which shows 0 sub- chassis view of the Model 44 receiver, demonstrates the essentially orderly manner of design and layout which characterises this superior quality radio. ADVANCED RADIO DESICN Model 44 incorporates 0 number of recent and important technical advances in COLUMBUS technical design. IM- PROVED RECEPTION PERFORMANCE has been procured by the development of more efficient valve circuits, by careful selection of com ponents, and by close attention to methods of layout and construction. IMPROVED TONAL PERFORMANCE has been achieved by reduction of the 0 e distortion normally associated with the operation of the detector valve , by a cleverly-conceived method of hum filter- ing, and by the development of the new COLUMBUS elliptical loudspeaker. ADDED USEFUL LIFE is given to the radio by a method of reducing filter condenser voltages; by CQLUMBUS the usB of hermetically sealed metal-clad condensers in critical positions, and by the elimination of high-tension voltages from the wave-band switching system. Fuller details availabls upon request: UNCONDITIONALLY GUARANTEED FOR 12 RADIO MONTHS THROUGHOUT NEW ZEALAND NATION-WIDE SERVICE : Whangarei, Auckland, Hamilton, Paeroa, Rotorua, Tauranga, Gisberne, Napier, Hasta ings; Dannevirke, Taihape, New Plymouth, Wanganui, Palmerston North, Masterton, Wellington, Blenheim , Nelson, Greymouth, Christchurch, Timaru, Oamaru, Dunedin, Gore, Invercargill: cxi