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7B80 Instruction TABLE OF CONTENTS PAGE PAGE LIST OF ILLUSTRATIONS . . . . . . . . . . . . . . . . . . . iii Trigger Slope . . . . . . . . . . . . . . . . . . . . 1-7 LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . iv Trigger Level . . . . . . . . . . . . . . . . . . . . 1-7 SAFETY SUMMARY. . . . . . . . . . . . . . . . . . . . . . . . . v Horizontal Sweep Rates . . . . . . . . . . . . . 1-7 Time Measurement . . . . . . . . . . . . . . . . 1-7 SECTION 1 OPERATING INSTRUCTIONS Sweep Magnification . . . . . . . . . . . . . . . 1-7 INSTALLATION . . . . . . . . . . . . . . . . . . . 1-1 Variable Hold Off . . . . . . . . . . . . . . . . . 1-7 CONTROLS, CONNECTORS, AND INDICATORS . . . . . . . . . . . . . . . . . . 1-1 Mainframe Operating Modes . . . . . . . . . . 1-9 FUNCTIONAL CHECK . . . . . . . . . . . . . . . 1-1 APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . .1-10 Setup Procedure . . . . . . . . . . . . . . . . . . 1-1 TIME-INTERVAL MEASUREMENTS . . . . .1-10 Sweep Functions . . . . . . . . . . . . . . . . . . 1-4 Period and Frequency Measurements . . . . .1-10 Triggering Functions . . . . . . . . . . . . . . . 1-4 Rise-Time and Fall-Time Measurements . . .1-11 GENERAL OPERATING INFORMATION . . 1-5 Pulse Width Measurements . . . . . . . . . . . 1-12 Triggering Switch Logic . . . . . . . . . . . . . 1-5 DELAYED-SWEEP MEASUREMENTS . . . . .1-12 Triggering Modes . . . . . . . . . . . . . . . . . . 1-5 X-Y PHASE MEASUREMENTS . . . . . . . . . .1-12 Trigger Coupling . . . . . . . . . . . . . . . . . . 1-6 SECTION 2 SPECIFICATION Trigger Source . . . . . . . . . . . . . . . . . . . 1-6 STANDARD ACCESSORIES . . . . . . . . . . . 2-3 WARNING THE REMAINING SECTIONS OF THIS MANUAL CONTAIN SER- VICING INSTRUCTIONS . THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY . T O AVOID ELECTRICAL SHOCK, DO NOT PERFORM ANY SERVICING OTHER THAN THAT CALLED OUT IN THE OPERATING IN- STR