Muirhead & Co., electrical engineers & contractors and manufacturers of electrical & telegraphic apparatus. (1893)
Muirhead & Co. · Muirhead & Co. · leaf 46
GALVANOMETERS, 39 563. Reflecting Astatic Galvanometer, cheap and portable form, four coils fixed to two thickebonite slabs hinged at the base of the instru-ment, by simply removing two screws withmilled heads, these ebonite slabs can beturned back, and the suspension adjusted orremoved • * * ■ 9 •… … 563. 5C5.—Marine Galvanometer, Thomsons, in stout iron case, complete, with set of shunts, lampand scale • a i • • • • ■ * • i * 25 0 0 i 5GG. Ditto, ditto with coils of high resistance, from 507,—Thomsons Dead-beat Galvanometers, mirror suspension, enclosed in a narrowchamber with glass sides, and…
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