Apparatus allows students to clearly observe the effects of electric and magnetic fields on an electron stream. This compact instrument provides students a dramatic and visually pleasing experience. The large orbital electorn path is circular and Helmholtz coils are integrated. The beam has a built-in engraved glass rod with a scale along the central axis. This eliminates parallax when making diameter readings of the electron orbit. You cn observe the entire experiment through the front view hole or rear sliding panel.
Vacuum Tube: 130mm, helium gas, integrated phosphor scale.
Power Supply sold separately: Item # 441-2451
Heater: 6.3V / 1A