Electrical and scientific instruments and apparatus : november 20th, 1899 (1899)
Elmer G. Willyoung & Co · New York : E.G. Willyoung · leaf 172
Fig. 143. HoTCHKiss Oscillograph (Not Assembled). … Fig. 143. Showing Slide Way. 168 The galvanometer coils may be connected in series or in parallel andthere are several sets of coils of different resistances so that one may beexchanged for another. This instrument is also made with a slide way for dry plates (fig.143). The plate is shot downward…
Electric apparatus and appliances · Equipment and supplies
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