HP 8081A Operating And Service Manual page 22

300mhz rate generator module
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Pulse Generator:
Repetition rate
150MHz
Pulse width
square wave
Amplitude
0.2 V
Polarity ........................•.. positive
8081 A:
RATE range
300MHz-l00MHz
Rate VERNIER
CCW
Operating Mode switch
GATE EXT
EXT INPUT LEVEL
center
NEG-paS-MAN switch
pas
2.
3.
Oscilloscope:
Sensitivity
200mV/div
Trigger
external
Timebase mode
, .. expanded
Timebase - direct
20ns/div
Timebase - expanded
5ns/div
Adjust the EXT INPUT LEVE L control for a
stable 150 MHz pulse presentation on the display.
Observe that each external gate pulse releases two
8081 A pulses.

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