30 type designations

Thyratrons

Gas filled switching tubes for pulse modulators, resistance welding controls and industrial switching gear, cross referenced between Chinese Russian and USA designations.

A thyratron sits in the switching path of the whole machine. When it fails the line stops, and the type number stamped on the glass often belongs to a naming system that your local supplier does not recognise.

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ZG1-6/15 thyratron supplied by HAN Trade

Who It Is For

Buyers Who Come to This Line

Resistance welding equipment service teams
Pulse modulator and radar maintenance groups
Industrial switching gear and power supply rebuilders
Equipment dealers holding older Chinese and Russian built plant

Problems It Solves

What Usually Goes Wrong

The same switching tube carries a different designation in Chinese Russian and USA catalogues
Welding and modulator controls are out of production but the plant still has to run
Delivery of a single switching tube from an original brand can take months
Cap sockets and mounting hardware are quoted separately and arrive late

Core Advantages

What This Line Gives You

30 thyratron listings across the ZQM ZG1 NL FG and 2D21 families
Chinese Russian and USA type designations listed side by side
Cap sockets for the same tube available from the tube socket line
Packing designed to protect the envelope and base in transit

Application Scenarios

Case 01

Replacing the ignitron or thyratron control tube in a resistance welding set

Case 02

Keeping a pulse modulator in service where the original type is obsolete

Case 03

Stocking a spare switching tube for a production line that cannot stop

Case 04

Matching a Russian marked tube to a Chinese built equivalent

Industries

Where This Line Is Used

Industrial RF and Induction Heating

Oscillator tubes thyratrons and high voltage capacitors for induction hardening dielectric heating and high frequency welding plant.

Research Laboratories

RF amplifier tubes vacuum capacitors and switching tubes for accelerator groups plasma laboratories and university RF benches.

Defence Equipment Support

Magnetrons switching tubes and transmitting tubes for radar and communications equipment that has to stay serviceable.

Obsolete Tube Sourcing

Finding a working answer when the type on the equipment nameplate has left the original supply channel.

Maintenance Spares Programme

Holding the right spare before the line stops, instead of searching for it afterwards.

Knowledge

Guides Related to This Line

Buying Guide

How to Read Electron Tube Type Numbers Before You Order

The type designation is the only thing a tube supplier can buy and sell against. This guide explains how the common Chinese Wester

Troubleshooting Guide

Thyratron Basics for Maintenance Teams

What a thyratron does in welding controls and modulators, how failures present themselves, and how to identify a replacement acros

FAQ

Thyratrons Questions

My tube is marked with a Russian type number. Can you match it?

Send the marking as it appears on the tube. Several of the switching types we list are quoted under Chinese Russian and USA designations, so the match is usually a matter of reading the number correctly.

Do thyratrons need a special socket?

Most of them use a base and a top cap connector. Tell us the tube type and we will quote the matching cap socket from the socket catalogue.

How are switching tubes packed for export?

Each tube is packed so that the glass envelope and the base are held clear of the carton wall, and the outer packing is chosen for the freight method and the destination.

Can I order one tube only?

Yes. Single tube orders for a repair are normal, and we can also hold a repeat quantity for a maintenance programme.

Quote Thyratrons Against Your Designation

Send the numbers exactly as they are printed on your equipment. Price, availability and the data we hold come back by email.

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