Trong cái mạch này, em ko hiểu cách tạo ra cuộn L1, có hướng dẫn nhưng bằng tiếng Anh nên em chịu, anh chị nào giúp em với ah.
Link của bài hướng dẫn làm mạch này :
http://kitehost.com/dientuvienthong/...1%BB%99ng.html
# L1 can be made by winding 130 to 150 turns of 0.2 mm. enameled wire on a 5 cm. diameter former (e.g. a can). Remove the coil from the former and wind it with insulating tape, thus obtaining a stand-alone coil.
# A commercial 10mH miniature inductor, usually sold in the form of a tiny rectangular plastic box, can be used satisfactorily but with lower sensitivity.
Thanks anh chị nhiều
Link của bài hướng dẫn làm mạch này :
http://kitehost.com/dientuvienthong/...1%BB%99ng.html
# L1 can be made by winding 130 to 150 turns of 0.2 mm. enameled wire on a 5 cm. diameter former (e.g. a can). Remove the coil from the former and wind it with insulating tape, thus obtaining a stand-alone coil.
# A commercial 10mH miniature inductor, usually sold in the form of a tiny rectangular plastic box, can be used satisfactorily but with lower sensitivity.
Thanks anh chị nhiều
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