Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 80
Static or Condenser Instruments shown in Fig. 64, an attracted disc electrometer diagram : thedisc is hung on a beam balanced by a weight; the disc is sur- … FiG. 65
Electrical engineering · Electric power
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.