Harlow | Science Museum Group Collection

One photograph of three technicians working on a thermonic valve, titled 'Largest Radio Valve'. Caption on back reads: 'Technicians at work on the largest radio valve in the world -- a 1 1/2-ton monster -- at a laboratory in Harlow New town, Essex. The giant thermonic valve is being developed by a research group of the Admiralty for space exploration. When completed it will be installed in a lead-lined pit at Great Baddow, Essex'.

Daily Herald Photograph: Technicians working on 4 1/2 ton radio valve

1962-09-14

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Coil of 7mm fibre optic cable on cable drum, 1977

Alcohol thermometer

Reflective Fibre-Optic Tester

Alcohol thermometer

Digital Residual Current Circuit Breaker Tester model MD1015 no.8510

For Leisure and Pleasure choose.....Burnham-on-Sea

Burnham-on-Sea

Bottle of liniment

Absorbtiometer by Evans Electroselenium

Oxygen cylinder head with safety gauge

Orley Declipper made by Newman & Guardia Ltd

Marrett type continuous-flow apparatus for anaesthesia

Daily Herald Photograph: Technicians working on 4 1/2 ton radio valve

World Traveller Hi-Flo nebuliser and spare mouth-piece

Galvanometer, moving coil, no.B 25534

EEL (Evans Electroselenium Ltd)