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???
03/24/07 13:00
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#135772 - are you sure it is not 1/3?
Responding to: ???'s previous message
In fact they start at a slower speed (always at about 1/4 of the normal)
To me it sounds as if you are lucky that most of your 3rd overtone crystals actually do 'overtone'. Verify that you are using a fundamental crystal and, if not replace it with one.

OK, a guess.

Erik

List of 15 messages in thread
TopicAuthorDate
AT89S8253 clocking problem            01/01/70 00:00      
   The scope probe is the clue!!            01/01/70 00:00      
      The tale of a 1000 fingers            01/01/70 00:00      
      Alex did what the datasheet demands            01/01/70 00:00      
   1M across cap            01/01/70 00:00      
   are you sure it is not 1/3?            01/01/70 00:00      
      I had the same problem            01/01/70 00:00      
         Works!! But is it a solution            01/01/70 00:00      
            is it 1/4 or 1/3            01/01/70 00:00      
               Speed unstable            01/01/70 00:00      
                  May be clock amplitude...            01/01/70 00:00      
   Crystal frequency            01/01/70 00:00      
      An interesting article...            01/01/70 00:00      
   Use an external oscillator!            01/01/70 00:00      
      wait a year or more for the errata            01/01/70 00:00      

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