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TM 11-6625-2872-14&P
TABLE OF CONTENTS
Paragraph Page
SECTION 0. INTRODUCTION
Scope...................................................................................................... 0-1 0-1
Indexes of Publications . . . . ............................................................... 0-2 0-1
Maintenance Forms, Records, and
Reports ............................................................................................. 0-3 0-1
Reporting Equipment Improvement
Recommendations (EIR).......................................................................... 0-4 0-1
Administrative Storage ............................................................................ 0-5 0-1
Destruction of Army Electronics
Materiel............................................................................................. 0-6 0-1
I. GENERAL INFORMATION
Description .............................................................................................. 1-1 1
II. INSTALLATION
Portable Case or Rack Mounting ............................................................. 2-1 3
Installation in Sanborn Recording
Systems ............................................................................................ 2-5 3
III. OPERATION
Operating Controls................................................................................... 3-1 3
Balancing ................................................................................................ 3-9 4
Calibration............................................................................................... 3-11 4
Alternate Calibration Procedure............................................................... 3-12 4
Operation ................................................................................................ 3-14 4
50 dB Span Operation ............................................................................. 3-17 5
100 dB Span Operation ........................................................................... 3-21 5
Operation with Monitoring Instruments..................................................... 3-25 5
Simultaneous Recording and Monitoring
of 8808A Output................................................................................ 3-27 5
IV. PRINCIPLES OF OPERATION
Output ..................................................................................................... 4-1 6
Stage Description .................................................................................... 4-2 6
Signal Flow.............................................................................................. 4-3 6
Dynamic Range....................................................................................... 4-4 6
Block Diagram Information ...................................................................... 4-5 6
Detector Outputs ..................................................................................... 4-6 6
DB SPAN Switch Circuit .......................................................................... 4-7 6
LOG ZERO Level Setting ........................................................................ 4-8 6
V. REPLACEABLE PARTS
Introduction.............................................................................................. 5-1 8
Ordering Information................................................................................ 5-3 8
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