Instructions for installing and operating the Thomson recording watt-meter.
A technical instruction pamphlet issued by General Electric in 1896 for electricians and station operators installing the Thomson recording watt-meter. Halftone and line plates show the meter's coils, terminals, and mounting board from several angles, with wiring runs labelled FROM GENERATOR and TO LAMPS; useful for lettered wiring schematics, apparatus silhouettes, and tonal renderings of wound copper and cast metal.













