Reference
3-31
370B User Manual
Table 3–2 shows the measurements that are being made vertically and horizontal-
ly by the display for the various positions of the VERTICAL control, the
HORIZONTAL control and the CONFIGURATION switches. Those control
position combinations not covered by the table are not considered useful.
Table 3-2: Measurements Made by the 370B Display
Switch Setting Measured by Display
VERTICAL HORIZONTAL CONFIGURATION Vertically Horizontally
COLLECTOR COLLECTOR EMITTER COMMON
1
I
C
V
CE
COLLECTOR BASE/EMITTER EMITTER COMMON
1
I
C
V
BE
COLLECTOR STEP GEN EMITTER COMMON
1
I
C
I
B
or V
BE
COLLECTOR COLLECTOR BASE COMMON I
C
V
CB
COLLECTOR BASE/EMITTER BASE COMMON I
C
V
EB
2
COLLECTOR STEP GEN BASE COMMON I
C
I
B
or V
BE
2
COLLECTOR COLLECTOR BASE COLLECTOR
SUPPLY
I
B
V
BE
EMITTER COLLECTOR EMITTER COMMON
1
I
E
V
CE
EMITTER COLLECTOR BASE COMMON I
B
V
CE
STEP GEN COLLECTOR EMITTER COMMON
1
I
B
or V
BE
V
CE
STEP GEN BASE/EMITTER EMITTER COMMON
1
I
B
or V
BE
V
BE
STEP GEN COLLECTOR BASE COMMON I
B
or V
BE
V
CB
STEP GEN BASE/EMITTER BASE COMMON I
B
or V
BE
2
V
BE
2
1
Except BASE COLLECTOR SUPPLY mode.
2
V
BE
indicates a measurement of forward voltage baseĆemitter, with the horizontal
voltage sensing leads reversed.
The 370B has three measurement modes: Repeat, Single, and Sweep.
Repeat: Repeat mode is the measurement mode automatically selected when
370B is powered up or initialized. In Repeat mode, the Collector Supply and
Step Generator output are continuous.
Single: In Single mode, a set of staircase waves or pulse signal is output by
the Step Generator each time the Measurement SINGLE button is pressed,
while the Collector Supply is output continuously.
Sweep: In Sweep mode, a continuous series of dots is displayed when the
Collector Supply is in DC mode – a situation which would normally produce
only a single dot on the display. Two different Sweep mode outputs are
Measurements
Measurement Modes
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General