Hewlett Packard 608C Generator
Fabrikant:
Model:
608C
Datum:
1954
Categorie:
Groep:
Omschrijving:
VHF Signal Generator

Informatie

The Hewlett-Packard Model 608C VHF Signal Generator is a general purpose test instrument which furnishes accurately adjustable r-f signals from 0.1 microvolt to 1 volt over the frequency range from 10 to 480 megacycles. The output signal may be amplitude modulated by internally generated sine waves or by externally applied sine waves or pulses. The output signal level is adjustable by an attenuator calibrated in both volts and dbm and can be read directly to an accuracy of ±1 db over the full frequency and attenuation range without the use of external pads, monitoring devices, or charts. The 608C features a very wide frequency range, high output, and straightforward operation through the use of reliable, direct-reading controls and meters. The Model 608C Signal Generator is designed for general applications in the 10- to 480-megacycle frequency range, such as testing, calibrating, and trouble shooting VHF radio equipment and circuits. In conjunction with other test equipment, the 608C is useful for measuring standing wave ratios, antenna and transmission line characteristics, receiver sensitivity, etc. To obtain best accuracy in these applications, care has been taken to hold spurious modulation from the Generator to a very low value.

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Service-en gebruikershandleiding
Handleidingen type:
Service-en gebruikershandleiding
Pagina’s:
73
Grootte:
10.80 Mbytes (11321992 Bytes)
Taal:
english
Herziening:
Handleidingen-ID:
00390-1
Datum:
1961 01 01
Kwaliteit:
Gescande document, lezen deels slecht, deels niet leesbaar.
Upload datum:
2017 12 30
MD5:
3c0ed907ced6eb42b1f9a6fde0791bdf
Downloads:
680

Informatie

SECTION I GENERAL DESCRIPTION 1-1 Introductory ... I - 1 1-2 Auxiliary Equipment ... 1-1 1-3 General Electrical Characteristics ... 1-1 1-4 Supply Voltage ... 1-2 1-5 Power Cable ... I - 2 1-6 Physical Description ... 1-2 1-7 Inspection ... I - 2 SECTION H INSTALLATION AND OPERATION 2-1 Introductory ... II - 1 2-2 General ... II - 1 2-3 Installation ... II - 1 2-4 Operating Controls, Dials, and Terminals ... II - 1 2-5 Turning On the Equipment ... II - 1 2-6 Continuous Wave Operation ... II - 3 2-7 Internal Sine Wave Modulation ... II - 4 2-8 External Sine Wave Modulation ... II - 4 2-9 Pulse Modulation ... II - 5 2-10 Signal Generator Loading Considerations ... II - 5 2-11 Considerations for Pulse-Modulated R-F Output ... II - 6 SECTION HI THEORY OF OPERATION 3-1 General ... HI - 1 3-2 R-F Generator Assembly ... ni - 3 3-3 Radio Frequency Oscillator ... Ill - 3 3-4 Radio Frequency Power Amplifier ... HI - 5 3-5 Output Attenuator and R-F Power Monitor ... IE - 6 3-6 Modulator Section ... U3 - 7 3-7 Modulation-Measuring Circuits ... IH - 9 3-8 Power supply ... Ill - 11 3-9 Heater Supply Multivibrator ... IH - 12 SECTION IV MAINTENANCE 4-1 Introduction ... TV - 1 4-2 Cabinet Removal ... IV - 1 4-3 Periodic Checks and Routine Care ... IV-1 4-4 Test Equipment and Special Tools Required ... IV - 3 4-5 Localizing Trouble ... IV - 4 4-6 Replacement of Electron Tubes ... IV-4 4-7 Radio Frequency Oscillator Tube Replacement ... IV - 5 4-8 Radio Frequency Amplifier Tube Replacement ... IV - 5 4-9 Replacement of Electron Tubes within the Regulated Power Supplies ... IV-7 4-10 Attenuator Probe Replacement ... IV-7 4-11 Replacement of Lamp II ... IV - 10 4-12 Calibration of the Percent Modulation Meter ... IV - 10 4-13 Output Volts Meter Calibration and R-F Power Monitor Service ... IV - 11 4-14 Trouble Shooting Chart ... IV - 13

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Servicehandboek
Handleidingen type:
Servicehandboek
Pagina’s:
10
Grootte:
1.09 Mbytes (1147842 Bytes)
Taal:
english
Herziening:
Handleidingen-ID:
Datum:
Kwaliteit:
Gescande document, lezen deels slecht, deels niet leesbaar.
Upload datum:
2017 12 30
MD5:
ef8d9c8c6179ca99bc7510c1835fba02
Downloads:
2032

Informatie

Service Notes This Service Note contains information necessary for replacing and recalibrating the output attenuator in the 608A/B/C/D/E/F Signal Generators. The procedure is described for each model, using the appropriate replacement attenuator. This Service Note outlines the procedure for modifying the Model 608C.D VHF Signal Generators for regulated DC filament operation of the RF circuits. The original multivibrator filament Power supply in Some cases caused ripple on the output RF signal from the generator. The DC filament supply prevents this from happening.

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