Manufacturing radio and television valves, c 1930s.

Manufacturing radio and television valves, c 1930s.
3 3 c m
40cm
actual image size: 32cm x 25cm

Description

'This machine electrically spot welds tiny valve parts together. The operator places the parts in position, touches a lever, and a spark fuses the two metals together. The workers all wear white gloves to prevent moisture from the hands being transferred to the valve electrodes'.

Image Details

Image Ref.
 
10250335

© NMeM / Daily Herald Archive / Science & Society Picture Library

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