Differential galvanometer
- Made:
- 1870-1873
Differential Galvanometer by O & F.H. Varley for cable testing.
Details
- Category:
- Electricity and Magnetism
- Object Number:
- 1931-714
- type:
- galvanometers
- credit:
- Imperial & International Communications Ltd.
Differential Galvanometer by O & F.H. Varley for cable testing.