For demonstration of heliotropism and geotropism, germinating seedings are pinned to the cork table which is rotated by an electric motor. About 70mm dia cork linked disc, with fitting to take specimen tube clear plastic cover, angle adjustable from horizontal to vertical by a thumb screw, clock work motor which rotates 4 revolutions per hour, 220V 50hz supplies. Complete with 3 core cable. Height about 30cm.
Compact versatile and multipurpose slide projector having a good design and rigid construction.Equipped with 24V/150 watts halogen bulb and hard coated anastimatic lenses 1:2:8/85 mm. It has rigid fibre body and efficient cooling system. Supplied compelete with accessories for projection of 35mm film strips, 5x5 cm Kodachrome slides.
A compact, versatile and multipurpose slide projector. With hard coated anastigmatic lens set objective, and 24V/150 W halogen lamp It has a strong body and an efficient cooling system. Due to the incorporation of the latest design of condenser and heat absorbing systems, the instrument can be operated for longer durations without any damage to slides. Supplied complete with accessories for projection of 35mm film strips, 50 x 50mm transparency slides and microscopic slides. In light weight carrying case.