No. 50 536. 



Rheostats. 



127 











(4 



50 524. 1 : 3. 



50 534. 1 : 6. 



s. d. 

 0. 18. 



50.523. Sliding Resistance, Figure, with 2 ohms resistance and load of 4 amps. . . 



50.524. Sliding Resistance, Figure, 14 cm long, with resistance of 6 ohms and 3 amperes 



load 0. 15. 



5(1.525. - The preceding, larger, 23 cm long, with 20 ohms resistance and 2 am- 

 peres load 1. 0. 



5(1.526. - The preceding, with fine winding; resistance 380 ohms; load'0.5 amps. 1. 8.0 



5d. 5i' 7. - The preceding, can also be used as shunt resistance (cf. Figure), on 



serpentine stone slab 1. 10. 



50.528. - Thep receding; resistance about 1100 ohms for 0.1 ampere, Figure 1.10. 



50.529. - The preceding, with thick winding; resistance, 0.9 ohms; load 20 amperes, 



on serpentine stone slab, without shunt terminal 1. 8. 



5d.530. - The preceding, but larger, 35 cm long, resistance 1.5 ohm; load 12 amperes 1. 15. 



50.531. Sliding Resistance (cf. Fig. 50.534); resistance wires wound on slate; resistance 



about 2,000 ohms, for currents up to 0.3 ampere i 1. 16. 



50.532. --ditto, about 700 ohms for 1 ampere 1. 16. 



50.533. --ditto, about 100 ohms for 3 amperes 1. 16. 



50.534. - - ditto, about 34 ohms for 5 amperes 1.16.0 



50.535. --ditto, about 10 ohms for 10 amperes 2. 0. 



50.536. - - ditto, about^2.5 ohms for 20 amperes 2. 0. 



Cl- 3770. 5319, 22S3, 5306. 

 2284,5351. 

 2285,4121. 



