BELL IN VACUUM
Electric bell 6 V D.C. suspended in bell jar. Connections by two socket terminals fitted to a coiled wire which passes through a rubber bung which seals the mouth of bell jar.
Category: Physics & Electronic Laboratory Apparatus
GEOMETRICAL MODELS WOODEN SOLID
A set of 16 or 21 plane and solid geometric shapes. The plain shapes include triangle, rectangle, square, circle, semi circle, figure with five sides, six sides, eight sides, right angle. Solid figures include triangle, rectangle, cylinder, square, cone, square base pyramid, triangle base pyramid, pentagon, hexagon, octagon, sphere and ellipse. Supplied in a polished wooden box.
Light alloy, with single hole to take rods up to 13 mm. diameter.
Cat. No. Diameter mm. 07.01 3 07.02 6 07.03 9 07.04 12 07.05 16 07.06 19 07.07 25
Aluminium, plain of diameter 13 mm.
Cat. No. Length mm. 10.01 150 10.02 450 10.03 750 10.04 1200