ID: 
1637
Maker's Name: 
Amalgamated Wireless Valve, Aust
Where made: 
Australia
Dimensions: 
30 × 13 × 13 cm

This apparatus demonstrates the operation of a Cathode Ray Tube with electrostatic deflection. The construction includes a fluorescent screen. This shows the path taken by the electron flow within the tube, as the voltage on the deflection plates varies.