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INSTRUCTION




IAi8/tA"%H
DUAL TRACE
AMPLIFIER




7A18
7A18
TABLE OF CONTENTS
SECTION 1 SPECIFICATION Page OPTION INFORMATION

lntroduction I- I
Electrical Characteristics 1-1 SECTION 6 ELECTRICAL PARTS LIST
7A18 And Mainframe Frequency
Abbreviations and Symbols
Response 1-3
Environmental Characteristics 1-3 Parts Ordering lnformation
Physical Characteristics 1-3
SECTION 7 DIAGRAMS AND CIRCUIT BOARD
SECTION 2 OPERATING INSTRUCTIONS ILLUSTRATIONS

Installation 2-1 Symbols and Reference Designators
Front Panel Controls and Connectors 2-1
Voltage and Waveform Conditions
General Operating Information 2-2
Basic Applications 2-4

SECTION 3 CIRCUIT DESCRiPTlON
SEC'TION 8 MECHANICAL PAR1'S LIST
Introduction 3-1
3-1 Mechanical Parts List Information
Block Diagram Description
Detailed Circuit Description 3-1 Index of Mechanical Parts Illustrations
Mechanical Parts List
SECTION 4 MAINTENANCE Accessories

Preventive Maintenance
Troubleshooting
Replacement Parts 4-3 CHANGE INFORMATION
Component Replacement 4-4

SECTION 5 CALIBRATION
Abbreviations and symbols used i n this manual are based on
Recalibration Interval 5-1 or taken directly from IEEE Standard 260 "Standard
'Test Equipment Required 5-1 Symbols for Units", MIL-STD-12B and other standards o f .
Part I -.-Performance Check 5-3 the electronics industry. Change information, if any, i s
Part I I - Adjustment 5-7 located at the rear of this manual.




REV. JUNE 1974


7A18
7A18
Change information, i f any, affecting this section will be found at the rear of the manual.


t ntroduction the setting of the VOL-I"S/DIV switch. Channel 2 can be
inverted for differential measurements. The 7A18 can be
The 7A18 and 7A18N Dual Trace Amplifier plug-in operated in any plug-in compartment of the 7000-Series
units are designed for use with l-ektronix 7000-Series Oscilloscopes.
Oscilloscopes. The 7A18 and 7A18N are electrically iden-
tical except that readout encoding capabilities and an
"IDENTIFY" function are provided only in the 7A18. All
references made t o the 7A18 apply equally t o the 7A18N The following electrical characteristics are valid over the
unless othewise noted. The 7A18 is a dual-channel, stated environmental range for instruments calibrated at an
medium-bandwidth amplifier. Internal gain and compensa- ambient temperature of i - 2 0 " ~ +30