Teonex Ltd.
2A Westbourne Grove Mews, London, W.11

T.O. Supplies (Export) Ltd.
2A Westbourne Grove Mews, London, W.11 2RY (1977)

Brand: Teonex

Teonex was a British company that operated as a marketer and distributor of electronic tubes and semiconductors, rather than a manufacturer. The company was founded around 1953 and operated for at least 30 years

Early Years and Business Model

• Teonex emerged in the 1950s as a valve distributor. [1]
• They purchased remaining stock from valve manufacturers who were closing their plants, particularly in the latter years of the valve era (after about 1969).
• Teonex would rebrand these valves with their name for sale to the replacement market.

International Focus

• By 1969, Teonex was primarily focused on exporting valves outside the UK.
• They supplied valves for civil and military applications to governments worldwide, complying with E.V.S. or M.I.L. standards.
• The company operated in more than 70 countries by 1976.

Product Range

• Teonex offered a comprehensive range of electronic valves, including British-produced valves and their Continental equivalents.
• By 1976, their catalogue had expanded to include semiconductors and integrated circuits, offering more than 4,000 devices.
• They specialised in industrial valves of British, European, and USA manufacture.[2]

Later Years

• In 1983, Teonex was still operating under the name T.O. Supplies (Export) Ltd.[1]
• They continued to supply industrial valves and semiconductors, including obsolete and obsolescent types.

Throughout its history, Teonex positioned itself as a quality-focused distributor, emphasizing strict quality control and competitive pricing. The company played a significant role in the global distribution of electronic components, particularly during the transition period from valves to semiconductors.

[1] Wireless World May 1983, Page 24.
[2] Wireless World Jun 1976, Page 25.