Muirhead & Co., electrical engineers & contractors and manufacturers of electrical & telegraphic apparatus. (1893)
Muirhead & Co. · Muirhead & Co. · leaf 33
10,000ohms in the aggr< ite, with Wheatstone Bridge attached, consisting of thre< pairs of coils of equal resistance (two tens, two hundreds, and two thousands), in Germansilver or platinum silver alloy wire orplatinoid wire ... • • • • • * • • Ditto, same construction as No. 415, much… … All Standard Resistances, unless otherwise ordered, will be adjusted to the B.A ohm.
Electrical Equipment · Lightning protection for structures · Lightning protection for buildings · Batteries · Lighting · Maintenance testing of electrical systems · Wiring devices
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