17.
SWP CAL - screwdriver adjustment to provide calibrated sweep
timing.
18.
POWER - controls power to the instrument. Does not interrupt
charging current to the internal batteries when the instrument is
connected to an AC line voltage.
19.
FOCUS - screwdriver adjustment to obtain a well-defined display.
20.
HORIZ MAG - provides continuously variable sweep magnification
to a minimum of approximately five times the sweep rate indicated
by the SEC/DIV switch.
21.
HORIZontal GAIN - screwdriver adjustment to set the basic gain of
the horizontal amplifier system.
22.
Horizontal POSition - controls the horizontal position of the trace.
23.
SEC/DIV - selects horizontal sweep rate (horizontal VAR must be in
CAL position for indicated sweep rate). Calibrated sweep rate
accuracy within 5%.-X-Y position allows for X-Y operation with CH 2
supplying the vertical deflection and CH1 the horizontal deflection.
24.
EXT TRIG - banana jack for input of an external trigger signal.
25.
COMMON - banana jack to establish common ground between the
212 and the external signal source or equipment under test.
5
212 Operators Handbook
