Our Products
We offer a complete product range of Bell Vacuum Instrument and Glass Cubes
For use on pump plate not less than 15 cm dia. Electric bell operating on 4-6 Volts AC/DC, suspended in bell jar with wire connections to terminals, mounted in rubber bung, sealing the jar.
a) Bell Jar 225 x 150mm (h x d)b) Bell Jar 200 x 100mm (h x d)
Hollow, to demonstrate variation in refraction of ray tracks on use with liquids of different refractive indices. Made of polished glass plates connected together.