Product Code:
HA-PHET-0040
Description:
The apparatus consists of a clear perspex tube provided with a light, freely sliding expanded polystyrene piston & a loose fitting metal cap.
Specification:
The tube is mounted by means of a bayonet type fitting in a metal cap,
upon a polished wood motor housing. A low voltage DC motor is contained
in the housing & is coupled to crank driven agitator. The push rod
of the agitator carries a light plastic piston which oscillates in the
lower end of the tube. The apparatus is supplied complete with metal
spheres & four cardboard loading discs.
