either direction until it stops, then turn it in the
RX1 scale. The reading should be 6.2 ohms. If
opposite direction slowly and evenly until it stops
reading is more or less than 6.2 ohms, replace the
rheostat.
again. The indication on the meter should increase
or decrease evenly according to the speed at which
(2) Connect an ohmmeter to the center termi-
the rheostat is turned. If meter does not indicate
nal and either outside terminal of the rheostat. Set
as desired, replace the rheostat.
the meter on the RX1 scale. Turn the rheostat in
6-27