Electro device recording drum with stainless steel axle with screw lift 150 x 150 mm approx. Cylinder. All the eight speeds are obtained from the metallic gear train: speed mm / second- 640, 320, 25, 12.5, 2.5,1.25, 0.25 and 0.12 with 150 mm dia. Cylinder. 2.5,1.25, 0.25 and 0.12 with 150 mm dia. Cylinder. The drum is fitted with electric contact block, contact arms and neutralising clutch as standard fixture. Complete with levelling screws to work on 220 V AC.