Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 212
n in their true colours. Arc lamps may be regulatedby either a shunt or main solenoid or magnet alone; but it isquite obvious that the variation of pressure required to operatea lamp by a shunt coil and the variation of current requiredto operate by a main coil alone must be at least double… … Pig. 218 Nernst Lamp, by the Electrical Company, Charing Cross Road, London
Electrical engineering · Electric power
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