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Tel tron Diode S

Tel tron Diode S

Product Code : JA-APE-7297

The Tel tron Diode S (SKU JA-APE-7297) is a high-vacuum electron tube with a thermionic cathode, supplied by JaincoLab for atomic and electronic physics practicals. As a thermionic diode tube it lets students heat the cathode, apply a voltage and measure the emission current that flows, and then use the same tube to see how a diode rectifies. It belongs to the Tel tron S series and suits B.Sc and engineering physics laboratories as well as senior-school demonstrations.

Specifications

The Diode S is a two-electrode, high-vacuum tube in which a heated thermionic cathode emits electrons that are collected when a voltage is applied; the listing gives its construction and uses, while electrical ratings and dimensions are confirmed on the quotation.

ProductTel tron Diode S
SKUJA-APE-7297
Brand and seriesTel tron, S series
Tube typeHigh-vacuum electron tube (diode)
CathodeThermionic (heated) cathode
StudiesEmission current against the voltage applied to the cathode; diode rectification
MountingTel tron Tube Holder S (listed separately)

Applications of the thermionic diode tube

In the laboratory the Diode S is used to show that a heated cathode releases electrons, to relate the measured emission current to the voltage applied, and to demonstrate that the tube conducts in one direction only, which is the basis of rectification.

  • Measuring emission current as the applied voltage is changed and plotting the characteristic curve
  • Demonstrating thermionic emission from a heated cathode in senior-secondary physics
  • Showing rectification: current flows through the tube in one direction only
  • Diode characteristic experiments in B.Sc and engineering physics practicals

Scope of supply and ordering

The listing covers one Tel tron Diode S tube as named. The Tel tron Tube Holder S, the mounting point for S-series tubes, is listed separately, and the power supplies and meters needed for the experiment are not part of this listing. Accessories, spares and quantities are confirmed on the quotation.

Minimum order quantity, lead time and packing for the Diode S are confirmed on each quotation for the quantity and delivery destination. JaincoLab supplies single tubes to college laboratories as well as bulk school, college and tender orders, and ships to buyers in Africa, the Middle East and South and South-East Asia.

Frequently asked questions

What can students measure with the Tel tron Diode S?
They can measure the emission current from the heated thermionic cathode as the applied voltage is varied, plot the characteristic, and show that the tube rectifies by conducting in one direction only.

Which holder does the tube fit?
The Tel tron Tube Holder S is the mounting point for the S-series tubes and accessories. It is a separate listing and can be added to the same quotation.

Are power supplies included?
No power supply is part of this listing. Tell us which supplies and meters your laboratory already has, and the items needed are confirmed on the quotation.

Related products

See the full range of atomic physics equipment, or browse all physics lab equipment from JaincoLab.

Request a quote

To ask for a price on the Tel tron Diode S, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Tender and project enquiries can be sent through the tenders page.

Last updated: September 2026

   
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2475-84, Hargolal Road,
Ambala Cantt, Haryana, India

[email protected]

+91-85699-09696

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