那時的收音機是調諧旋鈕調節電容大小來獲得耦合頻率波上諧波。可調電容和線圈耦合出載波，載波上有諧波信號嵌入，調幅的。

來源: wingreen 於 2021-06-21 17:54:39 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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