Overhead Projector Material_Bristle deflecting visibly in the presence

deflecting visibly in the presence of a charged object to reveal both charge presence and polarity

Jolly bulb is 60mm diameter and is directly connected to a bourdon gauge

Four-output regulated DC power supply providing +5V

100 by 100mm friction slider

pin and gauge objects

Overhead Projector Material_Bristle deflecting visibly in the presenceABS body, 90mm 3 element uni focal lens. Platform size 285x285mm o ABS body. Projector arm foldable and rotating projection head 360???. Excellent Contrast through 90 mm 3 element lens uni focal giving optimum brightness. o Rust and shock proof. Projector e*uipped with two halogen lamps with *uick changer lamp which can be operated from outside. o Platform size 285 x 285 mm with anti*ue layer Fresnel lens. Halogen lamp 2 x 24 V 250W and economy switch