Pasive component plate, type A3, for Sargrove sprayed-circuit radio, 1947.
4 0 c m
 
34cm
actual image size: 26cm x 32cm

Pasive component plate, type A3, for Sargrove sprayed-circuit radio, 1947.

© Science Museum / Science & Society Picture Library

Description

Component of radio receiver made on the ECME machine. In 1947, John Sargrove developed a machine for automatically producing electronic circuits for radio sets. This took the name 'ECME' - Electronic Circuit Making Equipment. ECME worked by automatically milling the bakelite blanks that formed the circuit boards. It then added resistors, capacitors and the metallic circuits by a spraying proces, leaving only the final asembly to be completed by hand. Though ECME worked succesfully it required high tooling costs and long production runs to make the proces economic. FInance and orders were insufficient and the project ceased within a year.
 

Image Ref.

10402373
 

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