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4.94 out of 5
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    2019-08-06 08:31:22

    Quite simple to build, useful but not always precise in the measure of quartz

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    2019-07-05 14:07:09

    ottimo adesso da provare arrivato prima

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    2019-05-19 07:44:02

    High Quality DIY Frequency Counter and Crystal checker. Works perfect !! Testing a 8700.000Hz crystal and a 50Hz input signal. See Pictures. Recommended !!!!

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    2020-01-14 09:09:45

    Works great! I've tested about 30 crystals and no problems except for those documented at lower frequencies needing the extra 22pF cap. I want to build a front-end and maybe a 2x and 10x pre-scaler for it (if high-speed 10x counters are not too costly..)

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    2019-12-15 19:12:18

    Interesting product, gives strange readings?

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    2019-11-21 08:38:44

    Excellent and fast.

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    2019-11-19 22:44:53

    bien reçu bonne qualité mais un peu cher reste plus qu'a faire chauffer le fer a souder merci

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    2019-08-23 01:29:33

    good devices ok fine

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