Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 326
added to the yellow, blue, green,-and violet of the ordinary mercury vapor lamp. The pioneer work onthis type of lamp was done in Germany but it has since been takenup in the United States and the lamp has been developed into acommercial form. Construction and Operation. The light-giving element of… … Diagram of 110-Volt 3.8-AmpereCooper-Hewitt Quartz Lamp 291 28 ELECTRIC LIGHTING TABLE V Data on Quartz Tube Lamps (Cooper=Hewitt) Volts,Nominal Current,Average Candle-Power MeanHemispherical WithClear Glass Globe Watts per Me\nHemisphericalCandle-Power 110220 550 3.8 3.3 2.0 100024003500…
Electrical engineering
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