Ratio arm box
Ratio arm box, 5 ohms: 5 ohms, for use with Callendar and Griffiths bridge
- Object Number:
- 1899-55 Pt1
- type:
- ratio arm box
Callendar & Griffiths self-testing resistance box
- Made:
- 1899
Callendar & Griffiths self-testing resistance box and bridge
Details
- Category:
- Electricity and Magnetism
- Object Number:
- 1899-55
- type:
- resistance box
- credit:
- Cambridge Scientific Instrument Co. Ltd.
Parts
Ratio arm box
Ratio arm box, 50 ohms: 50 ohms, for use with Callendar and Griffiths bridge
- Object Number:
- 1899-55 Pt2
- type:
- ratio arm box
Ratio arm box
Ratio arm box, 100 ohms: 100 ohms, for use with Callendar and Griffiths bridge
- Object Number:
- 1899-55 Pt3
- type:
- ratio arm box
Combined thermoelectric-free key and commutator
Combined thermoelectric-free key and commutator for use with Callendar and Griffiths bridge
- Object Number:
- 1899-55 Pt4
- type:
- thermoelectric-free key
Callendar & Griffiths self-testing resistance box
Callendar & Griffiths self-testing resistance box and bridge
- Object Number:
- 1899-55 Pt6
