Post Office Box India Manufacturer, Exporter, Supplier of Educational Equipments, Scientific Lab Equipment Laboratory Glassware Plasticware, Biology Models Maths Physics NCERT Science Educational School Kits for kids, our products are more eloquent than words.
Post Office Box

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Product Name: Post Office Box

Product Code:  In stock

Plug in type. The heavy brass contact blocks are bond to the vulcanite plated by a double nut system. The plugs & lugs are cut to a finer taper & are interchangeable. The plug heads are machine moulded of bakelite. Each resistor is independently mounted with double leads. Accuracy of Constantan coils 0.1% or lower values & 0.5% for higher values. Resistor: the best imported constantan wire is wound on ebonite spools; the method adopted is non inductive & non magnetic. Each resistor is dipped in boiling hot wax. Provided as above with 3 ratio coils of 1000, 100 & 10 ohms. Rheostat arm 15,000 ohms. Two tapping keys with silver contacts provided for battery & galvanometer in teakwood case with hinged lid. Overall dimensions : 280x200x175mm approx.