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Thermionic Tubes Diode Tube

Thermionic Tubes Diode Tube

Product Code : JA-APE-9388

The Thermionic Tubes Diode Tube (SKU JA-APE-9388) is a spare diode valve, type 6 x 4, supplied on its own to plug into the base of the thermionic diode apparatus. As a spare thermionic diode valve (6 x 4), it lets a laboratory replace a failed or broken valve and keep its diode apparatus in use for experiments on thermionic emission and the characteristics of a vacuum diode.

Specifications

The item is the diode valve only, type 6 x 4, which plugs into the base of the diode apparatus; the base is listed separately.

ProductThermionic Tubes Diode Tube
SKUJA-APE-9388
ItemSpare diode valve (tube) only
Type6 x 4
FittingPlugs into the base of the diode apparatus
Matching baseThermionic Tubes Diode Base, listed separately

Uses of the thermionic diode tube

Fitted to the diode base, the valve is used for experiments on thermionic emission, in which the heated cathode emits electrons that reach the anode only when the anode is positive.

  • Plotting the anode current against anode voltage characteristic of a vacuum diode
  • Showing that a diode valve conducts in one direction only
  • Studying the effect of filament heating on emission current
  • Replacing a failed valve in an existing diode apparatus

Scope of supply

Each unit is one spare 6 x 4 diode valve. The diode base, power supplies, meters, spares and quantities are confirmed on the quotation.

Packing, MOQ and lead time

Minimum order quantity, lead time and packing are confirmed on each quotation according to the quantity and delivery destination. JaincoLab supplies atomic physics apparatus and spare tubes to school and college laboratories and education projects, and exports to buyers in Africa, the Middle East and South and South-East Asia.

JaincoLab supports tender contractors as well as institutions: we manufacture and export laboratory equipment for Ministry of Education projects, World Bank-funded tenders and United Nations programmes, executed successfully in many countries, and we specialise in turnkey laboratory set-ups. Contact us through the tenders page early in your bid preparation.

Frequently asked questions

What type of valve is this?
It is a diode valve, type 6 x 4, supplied as a spare tube only.

What does it fit?
It plugs into the base of the diode apparatus, which is listed separately as the Thermionic Tubes Diode Base.

What should a quotation request include?
Send the SKU JA-APE-9388, the quantity, whether bases are also needed and the delivery destination.

Related products

More electron and atomic physics apparatus is listed in Atomic Physics Equipment from JaincoLab, a physics lab equipment manufacturer in India.

Request a quote

To order the Thermionic Tubes Diode Tube, send the quantity and delivery destination through the JaincoLab contact page or email [email protected].

Published: September 2026 | Last Updated: September 2026

   
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Office Address

Jain Scientific Suppliers
2475-84, Hargolal Road,
Ambala Cantt, Haryana, India

[email protected]

+91-85699-09696

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