About Us

Langrex is one of the largest stockists and distributors of Electronic Valves, Tubes and Semiconductors in the U.K. has been serving the Electronic Industry for almost 50 years.

Our stocks covering 1000’s of lines enable us to to supply from stock, 90% of all types ever manufactured, by original UK and USA manufacturers.

We deal direct with the General public, Industrial repair companies, Aviation companies and Government depts all other the world. We offer one of the widest spectrums of components, Millions Of Valves Available From Stock.

Stock List Quote Request


Accounts are available to approved customers, terms nett 30 days from invoice date.

We also accept.

– Cash/cheque with order
– BACS transfer
– Credit card payments: Mastercard/Visa (no American Express)

Please note our minimum credit card order value is £10.00. All prices quoted are subject to 20% VAT.

Trade Counter

Our trade counter is open from 9-4 pm Monday to Friday we have ample parking and if you are travelling by train we are only a 2 minute walk from Billingshurst Station (London Victoria to Billingshurst is 45 minutes. We would prefer if customers would contact us for an appointment. View map

Postage and Shipment of Goods



Electronic Valves and Semiconductors for Amplifiers

Audio Amplifiers

Audio Pre-Amplifiers

RF Amplifiers

Electronic > Semiconductors – Computational

Analogue Multipliers

CMOS Real Time Clock

Digital Signal Processing

I2C Serial Peripherals


PIC Peripherals

Real Time Clock Microprocessors

RISC Microcontrollers

Electronic > Semiconductors – Discretes

BIPOLAR Transistor Tables

Ceramic Transient Voltage Suppressors

Constant Current Diodes


Digital MOSFET’s

Digital Transistors

Diodes : Isolated Base Diode Modules

Diodes : Low Leakage Diodes

Diodes : Capsule Diodes

Diodes : Clamper/Damper Diodes

Diodes : Fast Recovery Diodes

Diodes : High Voltage SMT Diodes

Diodes : Hyperfast Diodes

Diodes : Schottky Barrier Diodes

Diodes : Signal Diodes

Diodes : Silicon Rectifier Diodes

Diodes : Stud Mount Diodes

Diodes : Ultrafast Diodes

Gas Filled Surge Suppressors

Half Bridge MOSFET Array

Intelligent Transistors

Isolated Tab Triacs


Non-Isolated Tab Triacs

PCB Mount Bridge Rectifiers

Radio Frequency Transistors

Silicon Transient Voltage Suppressors

Symmetrical Telecommunication Suppressors

Thermionic Valves


Tuning Diodes : SMT Radio Frequency (RF) Diodes

Unijunction Transistors

Zener Diodes

Electronic > Semiconductors – Signal Conversion

Analogue – Digital Converters

Analogue to Digital High Speed Converters


Digital – Analogue Converters

Digital – Analogue, Video Decoders


Remote Control ICs

Video Encoders

Electronic > Semiconductors – Signal Routing and Conditioning

Analogue Switches

Signal Conditioning ICs

Electronic > Semiconductors – Timing Functions

Clock Drivers

Counters / Drivers

Crystal Oscillator Modules