Temperature indicating controller

Made:
1945-1958 in London
Kelvin Hughes indicating controller Mk

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Kelvin Hughes indicating controller Mk
Science Museum Group
© The Board of Trustees of the Science Museum

Kelvin Hughes indicating controller Mk. IV (photo-transistor type) for thermocouple operation, use to control the temperature inside a lamp box, by Kelvin & Hughes (Industrial) Limited, London, 1945-1958

Details

Category:
Heat
Object Number:
1958-134
type:
controller
credit:
Kelvin Hughes Limited