BELL, ELECTRIC: ITS USE AND INSTALLATION By S. F. Philpott, M.I.E.E. Here are described the various types of ... Other sections of the article deal with bell indicators and bell transformers and explain the circuits used. Fig. 3. Diagram showing principle of continuous-action bell. ... I, where A is an electro-magnet made by winding two coils of wire on to a suitably insulated iron core B. The coils areanbsp;...
|Title||:||The New Electrical Encyclopedia|
|Author||:||Stanley George Blaxland Stubbs|