Crookes tube :  

1.2456 Crookes tube for demonstrating the deflection of cathode   ray in an electric field, hence indicates that cathode ray consists of negatively charged Particles (that is electron current).

2.it is composed of the following parts: glass envelope, anode, support, etc

 Accessory

1.      Low voltage DC power supply 0~12V.

2.      High voltage induction coil: Spark distance 50-80mm.

3.      Voltage adjustable transformer: A.C. 220V±10V.

4.      High voltage D.C. source: 250V-300v.

5.      U-shape magnet: pole distance 50-70mm.

6.      Connecting wires and with crocodile clips.

Demonstration Environment Condition

1.      Relative humidity is not greater than 80%.

2.      Temperature: -10-40.