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Rohde & Schwarz OMF - Precision oscilloscope BN 1912 manual
Type BN 1912 R 9833/1064 (R 9499/1064)
English text
94 pages
300dpi grayscale scans, retuched and leveled
Table of Contents:
1. Specifications 4
1.1 Cathode-ray tube 4
1.2 Y-axis amplifier 4
1.3 Unbianking circuits 6
1.4 X-axis amplifier 6
1.5 Sweep 6
1.6 Synchronization 7
1.7 General 8
1.8 Accessories 8
2. Uses 10
3. Description 13
3.1 Mechanical Construction 13
3.2 Circuitry 13
3.2.1 Y Amplifier with Additional Facilities 14
3.2.2 Synchronization 17
3.2.3 Time Base 19
3.2.4 X Amplifier 20
3.2.5 Time-marker Generator 21
3.2.6 High-voltage Source 22
3.2.7 Voltage Regulators 22
3.2.8 Power Supply 23
4. Operating Instructions 25
4.1 Preparation for Use 25
4.1.1 Adapting to the Local AC Supply Voltage 25
4.1.2 Zero of the Meter 26
4.1.3 Switching on 26
4.1.4 Basic Adjustment 26
4.2 Operation 27
4.2.1 Vertical Amplifier 27
4.2.1.1 Y Inputs 27
4.2.1.2 Y Attenuator 28
4.2.1.3 Modes of Operation 29
4.2.2 Synchronization and Sweep 31
4.2.2.1 Sync Inputs 31
4.2.2.2 Sync Selection 32
4.2.2.3 Trigger Level and Stability 33
4.2.2.4 Time Base and Sweep Magnifier 34
4.2.3 Horizontal Amplifier 34
4.2.4 Time Markers 34
4.2.5 Calibration Level Facility and Voltage Measurement 35
4.2.6 Graticules 36
4.3 Photographic Recording 36
5. Maintenance 38
5.1 Adjusting the Accessible Trimmer Potentiometers
0 POS. and SYMMETRY controls 38
5.2 Replacement of Valves and Trimming 39
5.2.1 Replacement of the Cathode-ray Tube 39
5.2.2 Trimming after the Valve Replacement 39
5.2.3 Instructions for Further Trimming Procedures 39
5.2.3.1 Anode Supply Regulator 39
5.2.3.2 Heater Supply Regulator 40
5.2.3.3 High Voltage 40
5.2.3.4 Y Amplifier 40
5.2.3.5 Time Base 41
5.3 Adaptation of RP Sockets to other Connector Systems 42
Transformer Connection Plan 43
6. Table of Replaceable Parts 44
Block Diagram 86
Front View 87
Circuit Diagrams
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