The classic insulated support for electrostatic experiments. It is 25.5 cm in height and consists of a brass disk (diameter 21 cm) supported by an glass insulating rod on a circular brass base weighted with a lead bottom. A clamp with a spherical brass pommel placed underneath, near the edge, allows connections if required.


Bibliografia:
Battelli-Cardani (1925), Vol, IV P.I, p.5


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