Teltron Tube - Deflection
Product Code : EL-AS-10811
Quick Answer: Teltron Tube - Deflection is a highly evacuated electron tube with a focusing electron gun and an inclined fluorescent screen, used to show the beam path and study the effects of electric and magnetic fields.
Last updated: October 2026
Key Features
- Glass sphere with cylindrical neck and a diode electron gun with filament and cylindrical anode
- Phosphor-coated mica screen, approx. 90 mm x 60 mm, angled at 15° across the axis
- Beam can be deflected electrically in the electric field or magnetically with the Helmholtz coil pair
- Shows the electron mirror effect with trochoidal spirals and magnetic focusing along the trochoid
Technical Specifications
| Specification | Value |
|---|---|
| Anode current | Approx. 0.1 mA at 4000 V |
| Maximum anode voltage | 5000 V |
| Maximum capacitor voltage | 5000 V |
| Maximum filament voltage | 7.5 V AC/DC or less |
| Glass bulb | Approx. 130 mm diameter |
| Fluorescent screen | Approx. 90 mm x 60 mm |
| Total length | Approx. 260 mm |
About This Product
The phosphor-coated side of the mica screen gives a clear fluorescent trace where the electron beam strikes it, so its path can be followed. Simple electrostatic and magnetic deflection can be shown, along with the relationship between plate potentials or coil currents and the degree of deflection. Operation needs a universal stand, an EHT power supply with 4 EHT experiment leads, a bench power supply for the filament, 4 mm leads, Helmholtz coils and a college power supply unit for the coils. Besides buyers across India, the Teltron Tube - Deflection can be exported to institutions in Tanzania, Rwanda, Bhutan, Lebanon, Burundi and Turkey.
Frequently Asked Questions
Q1. Can the tube be used for a specific charge electron experiment?
Yes. By adjusting the electric field so that it cancels the magnetic deflection, the specific charge e/m and the velocity of the electrons can be determined.
Related: Atomic Structure, Tel-X-Ometer, Cloud Chamber.
For a quotation on the Teltron Tube - Deflection, contact School Equipments India.
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