Compass Box (Permanent Magnet) ‘PSAW’ |
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| Compass Box (Permanent Magnet) ‘PSAW’
(1078 D) |
| (For deflection magnetometer or tangent galvanometer)
Consisting of thick bakelite moulded case of 125 mm dia with black aluminum dial graduated 0 - 900 four times, anti parallax mirror slot. The special permanent magnet (small in size) and a light aluminum pointer (designed for precise reading and maximum damping) supported on a steel pivot by jewel bearing sets. The permanent magnet is designed in such a way so that it has maximum magnetic fields strength.
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