Welwyn started making resistors in Bedlington Northumberland in 1946, and it is still making resistors there, in a growing facility, with technology that is in demand worldwide.
When Mercedes needed power resistors for its SLS sports car, it specified Welwyn parts.
The firm, now part of the UK conglomerate TT Electronics, started in Welwyn Garden City in 1937, making its iconic green vitreous enamel coated wire-wound resistors. And it still makes them, although now in a Barbados factory.
All parts are designed in Bedlington, and there it makes resistors from 50mW 0201 chips to multi-kW arrays, concentrating on high-reliability products for markets including military, aerospace and automotive.
Source:
http://www.electronicsweekly.com/Articles/2013/04/24/56003/built-in-britain-welwyn.htm
