No. fil 293. 



Vertical Galvanometers. 



875 



61 287. 1 = 6. 



61 291. 1 : 3. 



61 289. 1 : 8. 



61 293. 1 : 4. 



61,284. Galvanometers Nos. 61,280 61,282 can be fitted with a Directing Magnet for increasing i A. 

 the Sensitivity, of. Fig. No. 6 1,284 A Extra Price 0. 5.0 



The instrument is of liigli sensitivity and has a good damping arrangement. The graduated 

 ;irc is very lar^;-, being divided on both sides. 



til. 288. Vertical Galvanometer (Friedr. (\ (i. Miiller's), Figure, with liquid damping 

 (Ztschr. f. d. phys. u. chem. I'. 20, 1907, p. 142; M. T., Figs. 189 a and 189 b) . . . 



The. galvanom'-ter has two windings and can 1)0 used as a vertical galvanoscope of medium 

 iiiviiy mid for approximate current measurements from 50 milliamjieres and 7 amperes. 



til. 2*9. Balance Galvanometer (Friedr. ('. (1. .Miillers), F i g u r e (Ztschr. f. d. phys. u. 



" 



3. 10. 



9. 0.0 



diem. r. 10, 1897, p. 5) 



The balance galvanometer is a practicid instrument for measuring direct, currents of widely 

 differing densities. The. range is from 0.01 20 amps. Currents to 0.001 ampere can even be estimated. 

 The balance galvanometer can also bo used as a voltmeter, being provided for this purpose with a 

 line-wire coil. The instrument is also provided with oil damping. 



61.290. Vertical Galvanoscope, Figure, with glass scale, Keichspost model ...... 1. 2. 



01.291. Vertical Galvanoscope, Figu re, in lacquered zinc case ............ 0.15.0 



Vertical Galvanoscope; also for use as Dip Circle; for projection: see No. 60,096, p. 790. 



61,293. Vertical Galvanoscope suitable for projection, Figure (M. P., 9 th edn., Ill, Fig. 482) j 1. 13. 



( '1.2347, 4057, 2354, 2355, 

 2353, 5806. 



