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Ammeter for the Air Ministry, Probably by Elliott Brothers, English, 1941

Inventory Number 12818

Acknowledgement: © History of Science Museum, University of Oxford, inv.12818

Item type
Object
Provenance
Presented by the Marconi Corporation in 2003.
Primary inscriptions
On dial: "AMPERES / FOR RADIO FREQUENCIES ONLY" ''THERMO COUPLE / 1941 / A [crown symbol] M / REF No10A/8479 / R= 0. 09 [omega]'' Stamped on reverse "MADE IN ENGLAND"
Physical material
Plastic
Glass
Metal
Object type
Electronic instrument
Dimensions
Height: 58mm Width: 58mm Depth: 50mm Weight: 0.15kg
Inventory No
12818
Accession Number
2003-11

Description

An ammeter is a measuring instrument used to measure the current in a circuit. This ammeter has a square face with a black metal body and glass window which displays a scale from 0-2.5 amperes.

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