Consists of Laurent half shade, polariser, analyzer, brass scale graduated from 0 to 3600 or 0-1800 with vernier reading 6" and accommodates a 200mm. glass tube. Mounted on a sturdy base.
Outer chamber made of thick plywood with observation window & inner made of clear acrylic sheet, with chrome plated brass bars at bottom. A shock for controlled duration of 200V AC 50Hz single phase 0.2 Ma is built in & controlled by solid state timer.
