Moving iron galvanometer, 1955

Made:: 1955 in England

Moving iron galvanometer, Crompton Parkinson Ltd, England, 1955

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License this image for commercial use at Science and Society Picture Library

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Moving iron galvanometer, Crompton Parkinson Ltd, England, 1955
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Moving iron galvanometer, Crompton Parkinson Ltd, England, 1955. Portable instrument with grip handle and trigger. This opens a spring claw. In between is a detachable meter with a curved scale ranging from '0' to '200' amperes. When removing a rod us revealed fixed to the back of it. This is connected to the moving iron and fits in between the tongs. There is a second scale that can be fitted if required ranging from '0' to '50'.

Details

Category:: Electricity Supply

Object Number:: Y7001.1347

type:: moving iron galvanometer

credit:: Gift of J.C. Bradburn

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Parts

Crompton Parkinson tong test ammeter

Portable galvanometer, moving iron, Crompton Parkinson tong test ammeter in carry case. With grip handle and trigger which opens a sprung clamp enabling a cable to fit into the hole in the centre and give off a reading on the meter. This is set below the claw and has a curved scale ranging from '0.5' to '20' amperes with a moving iron mechanism. In the centre of the instrument is a screw head that can adjust the needle setting. Patent no 233808124. 247663/27.

Measurements:: overall: 220 mm x 100 mm x 60 mm,

Object Number:: Y7001.1347.1

type:: moving iron galvanometer

Image ©: The Board of Trustees of the Science Museum

Light bulb circuit tester

Light bulb circuit tester, electric circuit tester. At one end of a cable in a transparent tube containing the fuse on top of which is the probe protected by a sprung cover. The other end of the cable consists of a larger see-through cylinder with a bottle neck top of which is another probe with sprung cover. Inside a horseshoe socket for a light bulb can be seen. Transcription: 5 amps list no D55 English Electric A STA cert B.S 1361