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THE HISTORY OF TUNGSRAM 1896-1945 - MEK

THE HISTORY OF TUNGSRAM 1896-1945 - MEK

THE HISTORY OF TUNGSRAM 1896-1945 - MEK

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TIINGSRAM 188Figure 8: Gas-filled GSL lamp over 100Watt output for industrial use, withsingle coil, having a luminous efficiencysuperior to that of the vacuumlamps, and fitted with opal bulb toreduce glare. It could be used without aseparate luminaire.Figure 9: Gas-filled GSL lamp over 100Watt output for industrial use, withsingle coil, having a luminous efficiencysuperior to that of the vacuumlamps and fitted with blue glass bulb togive out light similar to daylight.8. 4br>. 9. 4bra.Figure 10: Economy lamp with twoseparate filaments. By pulling thestring it switched from normal toeconomy mode, giving off less light. Itwas designed for bedrooms, hospitalsand hotels.Figure 11: It had the same characteristicsas the lamp in figure 9, except itcame in various colours to be used fordecoration and in dark rooms.II. Om.Figure 12, 13, 14: Candle-shaped vacuumlamps with coiled filament, havingstraight, twisted and conic glassbulbs of Askania type.Figure 15: Tubular vacuum lamp withcoiled filamentFigure 16: Vibration-resistant tubularvacuum lamp with coiled filament forsewing machinesIS. 4bca. 16L ibra. 17. Om.Figure 17: Slim tubular vacuum lampswith coiled filament used for inspectingwine-barrels

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