Hewlett Packard - 230B - Amplifier
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Hewlett Packard 230B
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Equipment:
230B
Date:
1969
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Information
DESCRIPTION
The Model 230B Signal Generator Power Amplifier, is manufactured by Hewlett-Packard. The amplifier offers a convenient way of obtaining high level RF from the output of conventional signal generators. When used in 50 ohm systems, it is capable of producing up to 4.5 Watts output in the 10MHz to 500MHz frequency range and will reproduce AM, FM, Pulse or CW modulation within its bandwidth capabilities. The 230B employs three grounded grid amplifiers to produce linear, class AB, operation with a typical noise figure of 6 to 9dB. The entire 10 to 500MHz is covered in six ranges and an RF voltmeter is provided which indicates the voltage at the front panel RF OUTPUT connector.
1 Manual
Service and user manual
Manual type:
Service and user manual
Pages:
49
Size:
2.9 MB
Language:
english
Revision:
Manual-ID:
00230-90001
Date:
August 1969
Quality:
Scanned document, all readable.
Upload date:
May 31, 2020
MD5:
fa00b672-a73a-721a-b01a-772c07124b45
Information
OPERATING AND SERVICE MANUAL FOR SERIALS 935-02700 - up*
*For Serials Above 935-02700 A change page is included.
Section Page No.
I GENERAL INFORMATION .... . 1-1
1-1 Description 1-1
1-3 Instrument Identification 1-1
II INSTALLATION........
2-1 Initial Inspection 2-1
2-2 Mechanical Check 2-1
2-4 Performance Check 2-1
2-6 Claim for Damage 2-1
2-8 Preparation for Use 2-1
2-9 Power Requirements 2-1
2-11 115/230 Volt Operation 2-1
2-14 Power Cable 2-1
2-17 Cooling 2-1
2-19 Rack Mounting 2-1
2-21 Repackaging for Shipment 2-2
III OPERATION..........
3-1 Introduction 3-1
3-3 Controls and Indicators 3-1
3-5 Operating Instructions 3-1
3-7 Turn-On Procedure 3-1
3-9 Operating Procedures 3-1
3-11 Frequency Response 3-2
3-15 RF Voltmeter 3-2
3-17 VSWR 3-2
3-19 Noise Figure 3-3
3-21 Applications 3-3
3-23 AGC Characteristics 3-3
3-25 Skirt Selectivity 3-3
3-27 Adjacent Channel Desen-
sitization Test 3-3
3-30 High Level Driver 3-3
3-32 Antenna Testing 3-3
3-34 Attenuation Measurements 3-3
3-37 Frequency Multiplying 3-3
IV THEORY OF OPERATION. . . . . . 4-1
4-1 Introduction 4-1
4-3 Overall Description 4-1
4-6 Detailed Description 4-1
4-7 RF Amplifiers 4-1
4-13 Meter Circuit 4-2
4-15 Power Supply 4-2
MAINTENANCE........ Page No. , 5-1
5-1 Introduction 5-1
5-3 Test Equipment Required 5-1
5-5 Performance Checks 5-2
5-8 Frequency Dial Accuracy 5-2
5-10 Bandwidth Check 5-2
5-12 Gain Check 5-4
5-14 Voltmeter Accuracy 5-4
5-16 Adjustment Procedures 5-5
5-18 Preparation for Adjustment 5-5
5-20 Meter Mechanical Adjust-
ment 5-5
5-22 Power Supplies 5-5
5-24 RF Adjustments 5-5
5-27 Oscilloscope Control
Settings 5-6
5-29 250-500MHz Adjustment 5-6
5-31 125-250MHz Adjustment 5-6
5-33 65-125MHZ Adjustment 5-6
5-35 35-65MHz Adjustments 5-7
5-37 18.5-35MHZ Adjustment 5-7
5-39 10-18.5MHz Adjustment 5-7
5-41 Voltmeter Full-Scale Adjust 5-7
5-43 Component Replacement
Procedures 5-7
5-45 Tube Replacement 5-7
5-47 Detector Disassembly 5-8
5-49 Capacitor Piston Replace-
ment 5-8
5-51 Piston Mechanical Align-
ment 5-8
5-53 Capacitor Glass Tube
Replacement 5-9
5-55 Blower Maintenance 5-9
5-57 Lubrication 5-9
5-59 Selected Components 5-9
5-64 Troubleshooting 5-10
REPLACEABLE PARTS ...... 6-1
6-1 Introduction 6-1
6-4 Ordering Information 6-1
VII CIRCUIT DIAGRAMS 7-1
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