Description

The heavy brass contact blocks fitted to the bakelite plate. The inter-changeable plugs are cut to a fine taper. Each resister independently mounted with double leads wound with manganin wire non-inductive, dipped in boiling wax. Provided with 3 ratio coils of 1000, 100 and 10 ohms, rheostat arm 1-5000 ohms and two tapping, keys for galvamometer and battery in polished wooden case with hinged lid of size 280x 200x 175mm. Accuracy: 0.05% but with 4 ratio coils.