Hewlett Packard 211A Generator
Fabrikant:
Model:
211A
Datum:
1955
Categorie:
Groep:
Omschrijving:
Square Wave Generator

Informatie

The Model 211A Square Wave Generator is a precision wide range instrument particularly suited for use with a fast Oscilloscope for video Amplifier testing, permitting a rapid examination of Amplifier frequency characteristics up to many megacycles. In computer, pulse code, telemetering, and similar applications it offers great convenience as a variable trigger source for switching purposes. In television work it can serve as a bar Generator. In high frequency applications it is valuable as a modulator source. It also finds use in testing variety of devices such as attenuators, filters, delay tines and audio systems. The Model 211Ahas been designed with two outputs, one 75-ohm output and one 600-ohm output. The rise time of the signal from the 75 -ohm output is only 20 millimicroseconds, which is sufficiently fast to test the response of video devices out to approximately 20 megacycles or to provide a high speed triggering voltage of variable rate. The peak-to-peak amplitude of the signal across the 75-ohm internal impedance is 7 volts, or 3.5 volts peak to peak into a75-ohm external load. This output level may be adjusted with a 60-db step attenuator in combination with an amplitude control, a particularly desirable arrangement when low output levels are required. The second output from the Generator provides 55 volts peak-to-peak from a source impedance of 600 ohms. The rise time of this signal is less than 0.1 microsecond with the output level controlled separately from that of the 75-ohm output. Both outputs are used simultaneously.

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Service-en gebruikershandleiding
Handleidingen type:
Service-en gebruikershandleiding
Pagina’s:
40
Grootte:
13.58 Mbytes (14243605 Bytes)
Taal:
english
Herziening:
Handleidingen-ID:
00093-3
Datum:
01 april 1962
Kwaliteit:
Gescand document alle leesbaar.
Upload datum:
14 juni 2020
MD5:
6782386d357de75f9fb9fcce8eff722f
Downloads:
278

Informatie

Serials Prefixed: 026- I GENERAL INFORMATION ... 1-1 1-1. General Description ... 1-1 1-9. Damage in Transit ... 1-2 1-11. Power Transformer Conversion . . 1-2 n OPERATING INSTRUCTIONS ... 2-1 2-1. Controls and Terminals ... 2-1 2-11. Instrument Loading ... 2-1 2-17. Ringing ... 2-1 2-19. External Sync Operation ... 2-1 2-22. Pulses ... 2-3 2-24. Balanced Output ... 2-3 m THEORY OF OPERATION ... 3-1 3-1. Introduction ... 3-1 3-3. Sync Trigger ... 3-1 3-7. Multivibrator ... 3-1 3-12. Clipper Amplifier ... 3-1 3-15. Power Amplifier ... 3-2 Section Page IV MAINTENANCE ... 4-1 4-1. Introduction ... 4-1 4-3. Cabinet Removal ... 4-1 4-5, Equipment Required ... 4-1 4-7. Trouble Localization ... 4-1 4-12. Tube Replacement ... 4-1 4-15. Adjusting the Power supply ... 4-1 4-20. Frequency Calibration ... 4-4 4-24. Adjusting External Sync Sensitivity Sync Sensitivity ... 4-7 4-27. Waveform Observation and Measurement ... 4-7 4-41. Servicing Etched Circuit Boards ... 4-8 V REPLACEABLE PARTS ... 5-1 5-1. Introduction ... 5-1 5 -2, Ordering Information ... 5-1

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