Fairchild Instrumentation 79-02A Oscilloscopio
Produttore:
Modello:
79-02A
Data:
1965
Categoria:
Gruppo:
Descrizione:
Dual Trace Plug-In

Informazioni

INTRODUCTION The Type 79-02A Amplifier is a dual-channel Amplifier and is provided with two basic Amplifier sensitivities and bandwidths for XI and X10 calibrated operation as follows: 100 millivolts/division sensitivity with a dc to 100 megacycle bandwidth. 10 millivolts/division sensitivity with a dc to 90 megacycle bandwidth. - Operation of this Plug-In unit enables the user to obtain two vertical signals on the screen simultaneously or to display either channel individually. The VARIABLE gain control, located concentrically with the VOLTS/DIV switch, has a range of greater than 2-1/2 to 1. This VARIABLE gain control provides continuous overlap between steps of the attenuator (VOLTS/DIV) switch. A detented stop position is provided when the VARIABLE gain control is set to CAL. A MODE switch is provided which enables the selection of either Channel 1 or Channel 2 for separate display or the combination of both channels for dual display. In addition, ALTernate or CHOPped modes of operation are available. Use of the Polarity Inversion switch may give Channel 1 minus Channel 2 or Channel 2 minus Channel 1 presentation when MODE switch is set to ADDED. The Type 79-02A Amplifier is intended for use in the Y cavity of the Type 766H.F Series Oscilloscopes. 2. FEATURES •100 Me bandwidth at 100 mv/div sensitivity •10 mv/div sensitivity with 90 Me bandwidth •Solid state circuitry •Cascading feature converts instrument from dual trace to a high-gain, single trace unit; 1 mv/div sensitivity with 30 Me bandwidth nominal. FEATURES (concluded) • Front-panel GAIN ADJ control is provided for each channel to normalize gain between channels • Polarity Inversion switch enables subtraction of two signals when operating in the Added mode • Ground position on Input Selector switch provides ground reference on base line without necessity of grounding input of instrument • Provides equivalent dual-beam scope operation when : used with Fairchild Type 74-17A Automatic Display Time Base Plug-In unit ;

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Servizio e manuale utente
Tipo di manuale:
Servizio e manuale utente
Pagine:
113
Dimensione:
4.12 Mbytes (4325257 Bytes)
Lingua:
english
Revisione:
ID del manuale:
6704 5512
Data:
1965 01 01
Qualità:
Documento scansionato, la lettura in parte male, non in parte leggibile.
Data caricamento:
2017 05 07
MD5:
a2115b2c68907d97c59895e3cfc85130
Scaricamenti:
527

Informazioni

1. TECHNICAL SUMMARY 1-1 Introduction 1-2 Features 1—3 Technical Summary (Specifications) Type 79-02A Nominal Frequency Response Curve *2. OPERATING INSTRUCTIONS 2-1 First Time Operation 2-2 Applying a Signal 2-3 DC Balance Adjustment . 2-4 Setting Gain of Dual-Trace Amplifier 2-5 Input-Selector Switch 2-6 Obtaining a Display 2-7 Cabling Techniques in the Nanosecond Realm 2-8 use of Probes 2-9 Dual-Trace Operation 2-10 Dual Trace Triggering 2-11 Setting up Amplifier for Greater Input Sensitivity 2-12 Voltage Measurements 2-14 Measuring Short Rise Times 3. FUNCTIONAL BLOCK DIAGRAMS 4• PERFORMANCE ASSURANCE TEST 4-1 Maintenance Check to Assure Performance 4”2 Checking DC Balance Adjustment 4-3 Checking Sensitivity of Channels 1 & 2 4-4 Checking Fast Rise Time of Channels 1 & 2 4-5 Checking Mode Switch 4-6 Checking Chopped Operation 5* MAINTENANCE AND RECALIBRATION 5“1 Introduction 5-2 Removal and Replacement of Parts 5-3 Servicing Hints 5-4 Gaining Access to Chassis 5-5 Test Equipment Required for Service Adjustments 5-6 Gas Compensation Adjustments Section Title 5. (concluded) 5-7 DC and Bridge Bal Adjustment 5-6 5-8 Invert Balance Adjustment 5-7 5-9 X10 Level Adjustment 5-8 5-10 Output Current Adjustment 5-9 5-11 Gain Adjustments 5_9 5-12 X10 Cal Adjustment 5-10 5-13 Trigger DC Level Adjustment 5-10 : 5-14 Channel 2 Output Level Adjustment . 5-11 5-15 High Frequency:Adjustments 5-11 5-16 Input Capacitance Standardization and Attenuator Adjustment 5-17 6. ELECTRICAL PARTS LIST AND SCHEMATICS LIST OF RECOMMENDED VENDORS TABLE Number Title Page Attenuator Compensation Trimmers 5-21 ILLUSTRATIONS Figure Title page 1-1 Type 79-02A Dual Trace 100 Me Amplifier 1-0 2-1 Function of Type 79-02A Dual Channel Controls 2-3 2~2 Function of Type 79-02A Input Channel 1 Switching Facilities 2-5 2-3 Type 79-02A Calibrator Display 2-6 2-4 to 2-8 Waveform Displays 2-9 t 2-13 2-9 to 2-11 Waveform Displays 2-13 2-12 Peak-to-Peak Voltage Measurements 2-249 2”^3 Instantaneous Voltage Measurement with Respect to a Reference Potential 2-26

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