Salient Features of Double Tube Rheostats :-
1) Core Porcelain Tube, Non-Magnetic Non-Inductive Tubular Type. Diameter and Length of coreis given in the table below.
2) Contact Block : Squire piece made of material is fitted with contact sliders in the guide squir rod. Bright chrome plated Phosphor bronze strip which makes immediate contact with the guide rod. A backlite knob is fitted with squire piece for sliding up and down.
3) Guide Rod : Solid draven brass rod bright chrome plated squire.
4) Contact Material : Multiple brushes of Phosphors bronze strip rolled strip give springy action to the contacts.
Last updated on : 30 June 2017