Electromagnetism & Motors

Crookes Tube with Deflection Plate IE-A


[Product Description]

Hot Cathode type Crookes Tube with Electrode Deflecting Plate (on a supporting base)

[Overall Advantages to Users]

  • Designed for the experimental observation of deflectionphenomena of a cathode ray affected by electric and magnetic fields.
  • Possible to demonstrate the principles of a cathode ray tube (CRT), as well.
  • Electron beam can be clearly observed because of the emission generated by the collision between electron and argon gas contained in the crookes tube.


  • Cathode ray
  • Electron
  • Change in motion of electron affected by electric field



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[To all users]

  • Safe demonstration is possible because the “Hot Cathode type” can be operated without using inductive coil that needs high-voltage power supply.

[To teachers]

  • Possible to demonstrate without worrying about exposing students to X-ray because the acceleration voltage for hot cathode type crookes tube is much lower than that of cold cathode type.

[To students]

  • Possible to clearly observe cathode ray even in a classroom of normal illumination level because the end-face of the tube is painted with fluorescent.
  • Easy to confirm how cathode ray is affected by electric or magnetic field.
  • Crookes Tube with Deflection Plate (Main part)
  • Supporting base with terminal board to power supply unit
  • Cables (Banana plugs at both ends, Green/Blue x2 each, Red/Black x1 each)

Teacher's Resources

  • [MANUAL] In English for this product.


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