Portable testing set with galvanometer

Made:: Westminster

maker:: Nalder Brothers and Company

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Portable testing set with galvanometer
Science Museum Group
© The Board of Trustees of the Science Museum

Portable testing set with galvanometer, by Nalder Brothers and Co.

Details

Category:: Telecommunications

Object Number:: 1989-974

type:: portables

credit:: Muirhead Vactric Components Limited

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Portable testing set with galvanometer

Details

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