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very good manual, with detail and clarity in esquematic diagrams and waveforms .
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Very quality copy of original service manual, which contains the circuit diagrams, PCB and lists of components, well as recommendation for calibration procedures of device, also everything else, that need for repair, tuning and use this oscilloscope.
All presented copies have high-resolution, so you can view all in detail.
This manual will very useful for simple owners and for repairers.
I recommend these manual, because myself is owner of Philips PM3216 and I need sometimes servicing these oscilloscope (principally calibrating).
Also, these document is an example of excellent design of technical documentation.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
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manual excelente completo , diagramas y esquemas bien presentados y buena calidad de imagen.
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muy buen manual completo de buena calidad de impresion preciso y detallado , muy útil para la reparación.
3-12.
Model 10811A/B Find the line on Table 3-1 corresponding to the oscillator's aging rate. Then find the maximum allowable error (accuracy) on the horizontal axis. Follow the maximum allowable error vertically until it crosses the oscillator's known aging rate. Move horizontally to the left and read the minimum calibration interval in days. maximum allowable error known aging rate (per day) = calibration interval in days
Example: 5 x 10-9 (maximum allowable error) 3 x 10-10/day (known aging rate) 3-13. 3-14. = 16.67 days (~17 days) 3 X 10-10/day (known aging rate)
From Table 3-1, the oscillator should be adjusted approximately every 17 days. The minimum calibration interval may also be determined from the following formula:
Table 3-1. Accuracy vs Adjustment
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