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4.9 out of 5
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    2019-11-09 12:45:18

    Very fast delivery thanks.

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    2019-08-27 09:59:41

    Quality is good will see after implementation

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    2019-08-13 13:31:43

    seems to be good, not yet tried

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    2019-07-16 11:19:50

    very good

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    2019-06-21 00:00:10

    Interesting product for a super low price. The first one I built oscillated unless the pot was set midrange. I left the pot off the other 2 & the fixed output works perfectly. Needs 12-13 VDC, won't work any higher or lower. Bandwidth is about 250 kHz. Overall recommended.

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    хорошо

    2018-03-21 04:10:54

    хорошо

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    Nice Kit. Excellent for helping with sleep.

    2018-03-07 15:31:03

    This is a nice kit and very useful for treating the problems of sleeping due to Tinnitus, (Ringing in the ears). Build the kit and place by the side of your bed when sleeping. Helps me with sleeping. Hope it helps you. (This is a personal help, don't know if it will help others).

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    Bon produit, conforme à la commande

    2018-03-05 13:07:50

    Montage facile grâce au circuit imprimé indiquant l'emplacement des composants.

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