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This is a great manual. It was easy to read and very accurate. The size of the manual is small so email is no problem. I highly recommend it. The manual is very hard to find other than this website.
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Manual was complete and available promptly, since I had lost my original manual. Very good response.
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Whilst this is a photo copy, and some of the pages are a little askew, it was all readable and intact. A real bonus finding an old manual for a classic piece of kit that no other site had.
Great stuff.
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excellent quality, contains circuits and scan quality, 110 pages
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It was easy done, and I got exactly what I was looking for.
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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