{"ops":[{"insert":"部分圖片來源于網(wǎng)絡(luò)，侵則刪！！！ "},{"attributes":{"header":1},"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/d4eb6d339b96509356e00f8facc5239356c830d7.jpg","width":1728,"height":2304,"size":2688711,"status":"loaded"}}},{"insert":"上一欄我介紹了幾個基本的電路（見上圖）\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/9aa05232445cd574c6e74ee86fe51d30b8c16f96.jpg","width":1107,"height":375,"size":75295,"status":"loaded"}}},{"insert":"本欄來談?wù)劜牧?。首先最基本的是檢波器，這就是礦石收音機(jī)中“礦石”二字的來源。以前的檢波器叫礦石檢波器，有活動礦石和固定礦石兩種活動礦石和固定礦石結(jié)構(gòu)類似，核心就是礦石。常見有黃鐵礦、方鉛礦、紅鋅礦、自然銅等的金屬礦石，結(jié)構(gòu)如圖。\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/a53395f413a975f9e08554103466189ec4a8f905.jpg","width":750,"height":750,"size":215515,"status":"loaded"}}},{"insert":"也可以用IN60 2AP9 ISS86 ISS106 等等的二極管，最好用鍺管，或3DQ,3DB場管。然后說說喇叭。喇叭一定要用高阻的，阻抗越大越好，如舌簧喇叭動鐵喇叭等等，而且最好用耳朵聽。之后談?wù)勌斓鼐€。地線就是連接大地，但最好不要用插座的地線，這樣噪音大，建議直接埋土里，或接防盜窗上，消火栓上，天線可以用下圖的方法，絕緣一定要好！\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/8e90d486737988411cc786beeab593fa3e47e87b.jpg","width":1536,"height":1152,"size":1300899,"status":"loaded"}}},{"insert":"其次電容可用空氣聯(lián)可變電容，但頻率高建議用薄膜電容。\n\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/watermark/b5edd3a3f213800262bd0d2fc15880338b06f36f.jpg","width":1728,"height":2304,"size":3139143,"status":"loaded"}}},{"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/watermark/64a51994eb948984ee20594c1095e04ec900d878.jpg","width":1536,"height":1152,"size":1182411,"status":"loaded"}}},{"insert":"頻率高容量小。然后是線圈，不同波段有部同的線圈。有的有磁棒，有的無磁棒。這個也是看波段。如FM收音機(jī)\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/watermark/52b77166ec889021948f3eccb9144956e49eeb4e.jpg","width":1728,"height":2304,"size":2820968,"status":"loaded"}}},{"insert":"也有這樣的\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/watermark/88fa4bbc62178107f393575b32157dcc023e6924.jpg","width":1728,"height":2304,"size":2701963,"status":"loaded"}}},{"insert":"如喜歡可以私信我。（第二欄） （部分內(nèi)容為本人自己的觀點(diǎn)，若有誤，請聯(lián)系本人，感謝您的閱讀。）\n"}]}