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Fig. 95.—Showing Edison-Swan Ampère Meter.

Electric Lighting for Marine Engineers (1892)

“Fig. 95 shows an outside view of an ampère meter made by the Edison-Swan Co.” (p. 220) The units for measuring electric current today are called amperes, or amps, and a device for measuring current i [...]

Keywords: electrics, guages, meters, machinery

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Added: 2008-07-26

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Image status: public domain, hence royalty-free stock image; usage credit requested

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