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TABLE OF CONTENTS
i
Introduction and Setup
Instrument Overview 1
Preparation for Use 2
Line Voltage 2
Line Fuse 2
Line Cord 2
Ventilation 2
Power-Up 2
Repackaging for Shipment 3
Use in Biomedical Applications 3
Warning Regarding Use with Photomultipliers 3
Accessories Furnished 3
Environmental Conditions 3
Symbols 4
Specifications
SR560 Low Noise Preamplifier Specifications Chart 5
Operation and Controls
Front Panel Operating Summary 7
Power 7
Source 7
Filters 8
Gain Mode 9
Gain 9
Output 9
Reset 9
Status 9
Rear Panel Operating Summary 10
AC Power Input 10
Amplifier Power Output 10
Battery Charger 10
Blanking Input 11
RS-232 Interface 11
Battery Care and Usage 11
Recharging 11
Battery Care 11
Circuit Description
Differential Low-Noise Front End 13
Configurable Filters and Gain 13
Output Stages 13
Overload Detection 14
Microprocessor 14
Battery Charger and Pre-regulators 14
Power Regulators 15
Rear Panel Interfaces 15
Batteries and P.E.M. 16
Front Panel 16