Equipment information

Hewlett Packard 204C Generator
Manufacturer:
Model:
204C
Date:
1968
Category:
Group:
Description:
Oscillator

Information

The Model 204C is a stable signal source that produces sine wave frequencies between 5 Hz and 1. 2 MHz in six ranges. The output level is variable from 0 to 5 volts rms from a constant 600 ohm source. When working into a 600 ohm load, the maximum output level is 2. 5 volts rms. 1-7. A SYNC feature is included in the Model 204C. The SYNC jack on the front panel provides an output sync voltage of 1. 7 V rms, or accepts an external signal to synchronize the oscillator. This feature permits several oscillators to be synchronized to the same frequency or harmonics thereof. 1-8. The output of the Model 204C may be isolated from the cabinet. This floating output is balanced to better than 40 dB below 200 kHz with an isolated, battery operated instrument, or better than 40 dB below 20 kHz with an instrument having an ac line connection. 1-9. The standard Model 204C contains an ac Power supply that can be operated from 115/230 volts ac, 50 to 400 Hz. The instrument is also available with a mercury battery Power supply as an Option 01, or with a rechargeable nickel cadmium battery Power supply as an Option 02. The various power supplies can easily be interchanged by removing the instrument covers, unplugging one supply and plugging another in its place.

show more

Service and User Manual
Manual Type:
Service and User Manual
Pages:
58
Size:
4.23 Mbytes (4437855 Bytes)
Language:
english
Revision:
Manual-ID:
00204-90000
Date:
01 January 1968
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
31 December 2017
MD5:
37dbadd22cb1c56893d1277190c262ec
Downloads:
221

Information

. ... 1-2 1-14. Instrument/Manual Identification ... ... 1-2 Section Page II INSTALLATION ... ... 2-1 2-1. Introduction ... ... 2-1 2-3. Initial Inspection ... ... 2-1 2-5. Power Requirements ... ... 2-1 2-8. Grounding Requirements . ... . ... 2-1 2-11. Installation ... ... 2-2 2-15. Rack Mounting. ... ... 2-2 2-17. Combination Mounting ... ... 2-2 2-19. Repackaging for Shipment ... ... 2-2 Section Page III OPERATING INSTRUCTIONS . ... ... 3-1 3-1. Introduction ... ... 3-1 3-3. Instrument Description ... . ... 3-1 3-5. Turn-on Procedure ... ... 3-1 3-7. Operating Considerations ... ... 3-1 3-8. Floating Output ... ... 3-1 3-13. Low Distortion ... ... 3-4 3-15. Batterv Duration . ... ... 3-4 3-16. Rechargeable Battery Operation ... ... 3-4 3-22. Recharging Nickel-Cadmium Batteries ... ... 3-5 3-29. Cycle-life of Nickel Cadmium Batteries ... ... 3-6 Section Page IV PRINCIPLES OF OPERATION . ... ... 4-1 4-1. Introduction ... . . ... 4-1 4-3. Block Diagram Description ... ... 4-1 4-4. Bridge and Amplifier ... ... 4-1 4-10. Peak Comparator . ... ... 4-2 4-12. AGC ... 4-14. 600 Ohm Attenuator ... 4-2 5-1. Introduction ... ... 5-1 5-6. Dial Accuracy Check ... ... 5-1 5-7. Flatness Check ... ... 5-2 5-8. Distortion Check ... ... 5-4 5-9. Output Voltage and Impedance Check . . . ... 5-5 5-10. Output Control Check. . ... . . ... 5-6 5-11. Sync Output Check . . ... , ... 5-6 5-12. Sync Input Check ... ... 5-6 5-13. Balance Check ... ... 5-7 5-14. Hum and Noise Check ... ... 5-7 5-15. Adjustment and Calibration Procedures . . . ... 5-9 5-16. Introduction ... ... ... 5-9 5-19. Power Supply ... . . ... 5-9 5-21. Bias Adjustment ... ... 5-9 5-22. AGC Adjustment ... . ... 5-9 b-23. AGC and Frequency Adjustment ... ... b-9 5-24. High Frequency Adjustment ... ... 5-10 5-25. Distortion Adjustment ... . ... 5-10 5-26. Troubleshooting Procedure ... ... 5-10 Section Page VI REPLACEABLE PARTS ... ... . 6-1 6-1. Introduction ... ... 6-1 6-4. Ordering Information ... ... 6-1 6-6. Non-Listed Parts ... ... 6-1 7-1. Introduction ... ... 7-1 7-3, Schematic Diagrams ... ... . c-» - ... ... 7-1 7-5. Component Location Diagrams ... 7-1 Appendix

show more

Add Comment

* Required information
1000
Captcha Image

Comments

No comments yet. Be the first!