Tektronix 110 Instruction Manual page 7

Fig. 1-4. This picture shows the same conditions as in Fig. 1-3,
except the small pulse is now only 1 nsec wide. The time shift
relative to the large step is just over 1 nsec.
Fig. 1-5. The system is operating at a sensitivity of 20 mv
I
cm.
A triple exposure, positioned vertically to align the 50 % points,
allows easy measurement of the time slip. Under these extreme con-
ditions, the smallest pulse has an energy of about 24 millipico-
joules. The trigger takeoff system then removes approximately
1 millipicojoule for application to the switched system of amplifiers
and the trigger regenerator.
Fig. 1-6. The amplifiers in the trigger channel (used in the pre-
vious' 3 pictures) are switched out. The sensitivity is 2 v/cm.
The smallest of the 1 nsec wide pulses furnishes approximately
0.4 v to the trigger regenerator, through the trigger takeoff system.
This picture is of interest since this is the narrow-pulse response
which is obtainable with both the 110 and the N Units, when
either unit is externally triggered with signals between 0.4 and 2 v.
Fig. 1-7. Double exposure shows a 60-mv, 100-mc continuous
pulse train at equivalent sweep times of 1 nsec/ em and 10 nsec/
em. The Type 110 derives a trigger from the signal, permitting
the Tektronix Sampling System to operate without external trig-
gers, counting down from 100-mc to the 100-kc sampling rate of
the N Unit.
1-3