Re: Square wave generator - low cost by parazapper ..... Zapper Support Forum
Date: 6/30/2014 5:38:47 PM ( 11 y ago)
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URL: https://www.curezone.org/forums/fm.asp?i=2184895
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If you have the right equipment, you can fine tune some boards but then again, the oscillators invariably drift.
Hence the use of crystals which provide low drift with a high degree of accuracy.
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