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Mainframe is required. The 8080A mainframe provides
housing and power supplies for the 8081 A.
by a gate pulse from an external source or a manual
pushbutton. Internal Gate mode can only be useed with
an 8084A Word Generator module. The trigger slope
polarity and threshold level of external gate/trigger in-
puts is adjustable.
1-18
EQUIPMENT AVAILABLE
1-13
The power supplies for the 8081 A are pro-
vided by the 8080A Mainframe.
1-15
The only option for the 8081 A Rate Gener-
ator is a second copy of the operating and service
manual which can be obtained by ordering option 910.
1-19
The 8081 A is one of a complete range of
rep. rate, timing and output modules that form the
8080
high frequency pulse generator system. Repeti-
tion rates range from 0-1 GHz and the modules are
interchangeabl e to enable you to purchase a system
exactly tailored to your requirements.
1-14
OPTIONS
1-20
RECOMMENDED TEST EQUIPMENT
1-16
1-17
EQUIPMENT REQUIRED BUT NOT
SUPPLIED
To operate the 8081 A module, an 8080A
1-21
Equipment required to maintain the 8081 A
is listed in Table 1-1. Other equipment can be substi-
tuted if it meets or exceeds the critical specifications
I isted in the table.
Table 1-1. Recom me nded Test Equ ipment
Instrument
Critical Specification
Recommended Model
Used in
Mainframe
HP 8080A
Performance Tests,
Adjustments
Electronic Counter
up to 350 MHz frequency
HP 5345A
Performance Tests,
Adjustments
Sampling Oscilloscope
>
300 MHz bandwidth;
HP 182C with
Performance Tests,
up to 200 mV/div sensitivity;
HP 1810A plug-in
Adjustments
up to 0.5 ns/div sweep speed;
50 ohm input impedance
Real Time Oscilloscope
up to 1 MHz bandwidth;
HP 182C with
Performance Tests
up to 1 V/div sensitivity;
HP 1804A and
up to 10 Ils/d iv sweep speed;
HP 1821 A plug-ins
four input channels
Oscillator
up to 10KHz frequency;
HP 651 B
Performance Tests
up to 1 V RMS amplitude;
50 ohm output impedance
Pulse Generator
up to 250 MHz frequency;
HP 8082A
Performance Tests
2 ns pulse width; 0.5 V
amplitude; positive-polarity;
50 ohm output impedance;
square wave facility.
50 ohm Feedthrough
HP 10100C
Performance Tests
Termination
50 ohm Tee Connector
HP 1250-0781
Performance Tests
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