Fine Beam Tube

*BEST SELLER*

Hot cathode ray tube with indirectly heate oxide cathode, Wehnelt cylinder and conical anode with a screening cylinder, as well as a pair of plates for electrostatic deflection of the beam. Hydrogen filling with precisely adjusted pressure in which the path of electron beams can be seen in the form of a luminous, sharply defined bundle of ions. Designed for qualitative and quantitative investigations of electron beams in electric and magnetic fields as well as for the determination of the charge-to-mass ratio e/m of the electron and also for measuring the electron velocity v.

 

Technical Data:

• Gas filling: hydrogen 1.33 x 10^-5 bars
• Electrode system: indirectly heated oxide
  cathode, Wehnelt cylinder, conically shaped
  anode with semi-cylindrical screen
• Filament voltage and current: 6 V, 1 A approx
• Anode voltage: 150 V DC to 300 V DC
• Wehnelt voltage: 10 V max.
• Deflection: pair of deflection plates for electrostatic deflection
• Connecting socket with nine pole pin-socket (555 581)
• Deflection voltage: 50 V DC to 100 V DC
• Dimensions:
  Diameter of glass bulb: 17.5 cm
  Overall length: approx. 35 cm

INSTRUCTIONS FOR USE PLEASE CLICK HERE