Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 213
Pig. 218 Nernst Lamp, by the Electrical Company, Charing Cross Road, London … Fig. 220 0 B Vacuum Tube Lamps tion under a difference of pressure of only 0.5 volt and 0.5ampere, while with either coil alone the variation would be atleast I or i^ volt or ampere. The arc itself has a resistance which seems to be compounded of a counter-pressure and asmall ohmic resistance.…
Electrical engineering · Electric power
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
