Model of A.C. meter in which a rotating field is produced by an electromagnet with "shaded" poles
- Made:
- 1889
Model of A.C. meter in which a rotating field is produced by an electromagnet with " shaded" poles. (demonstration). Wright, 1889
Model of A.C. meter in which a rotating field is produced by an electromagnet with " shaded" poles. (demonstration). Wright, 1889