[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 324
ance set,having 12 coils in the resistance portion aggrega-ting 1,100 ohms, and bridge arms of 10,000 and1.000 ohms on a side, thus giving a range ofmeasurement from 1-100 ohms to 111,000. 322 ELECTRICITY AND ITS There is also a reading telescope, Fig. 18. Thebase is of cherry and supports a… … Fig. 18. The upper ring carries the telescope and has alittle lug held against a second set-screw in thelower one. By turning this set-screw a fineadjustment of the telescope in azimuth is secured.A set-screw in the upper ring allows the telescopeto be adjusted in altitude. The instruments…
Electricity
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