Unnumbered Page Advertisement 1

Radio Record, Volume IV, Issue 15, 24 October 1930, Unnumbered Page

0538 Made in England The IvOrlds ecolomy all-purpose walve SPECIFICATIONS: Fi: Voles 4,0 Maz. Fila Curren: P_P} 0.1 ampa Plate Volts oji '0 150 maro Anpa Fector {0 0" 15 Impedance 8,500 obms Normel Slope; 1.77 ma/volts Equives Cep} irlp; 4409, A415 In every way L41o costs D0 you less: It is lower in price; It consumes only one-tenth of an ampere and makes # Your 'B' Battery last longer: The filament iscoated in a special manner; thus prolonging its life to an appreciable extent: You can u8e L4lo in any 4-volt battery-operated set for Radio frequency amplification; as a detector; Or in the first audio stage. Your dealer can advise you which Osram Valve You need _he knows all the equivalents. If he should not have in stock the Osram Valve you need, it will be sent direct; safe 'delivery guaranteed: The ('Osram Valve Guide a useful little book detailing all Osram Valves ~ is free for the asking: Advertisement of the British General Electric Co. Ltd. Branch Office and Public Showrooms: 31-37 Taranaki Street, Wellington