Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 335
. EDISWAN •ITCM-lTEiTENT ) Fiu. 1.—General appearance of3-electrode lamp. Pointolite mounted on a tungsten stalk. At firstthe arc is formed between the ioniseras -veand the globule as+ve electrode,the plate electrode being dead. Then.by means of suitable switch gear, theioniser is made dead, the…
Lighting
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