Non-reactive ratio box

Made:
1915 in London
maker:
H W Sullivan Limited
Non-reactive ratio box, by H.W. Sullivan Ltd., London EC, no

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Non-reactive ratio box, by H.W. Sullivan Ltd., London EC, no
Science Museum Group
© The Board of Trustees of the Science Museum

Non-reactive ratio box, by H.W. Sullivan Ltd., London EC, no. 50, 1000:1000 ohm, Hay-Sullivan patents nos. 22375/12 and 21109/13

Details

Category:
Electricity and Magnetism
Object Number:
1980-1266
type:
ratio box
credit:
Algo Instrument Services