POTENTIOMETER – GUPTA BRAND 8006014 Posted on March 4, 2017May 1, 2017 by admin A one metre long single resistance wire passes over a metre scale and is firmly clamped to stout brass end-plates,on wooden base.Complete with knife-edge jockey. Available in 2 and 4 wires also. Also available in 2 and 4 wires also.