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耳机放大器因为体积小、原材料成本较低(相对功率放大器而言)、制作难度小、交流方便而获得大多数DIY爱好者,尤其是在校学生朋友的青睐。本专题收录了三部入门级耳机放大器从收集资料再到制作的全过程。它们线路简单,元器件容易购买,制作难度较低。虽然每部放大器的制作成本都不足百元,但是在有限的投资下又可以
Headphone amplifier because of small size, lower raw material costs (relative to the power amplifier), the production of small, easy to communicate and access to most DIY enthusiasts, especially students in school friends of all ages. This topic contains three entry-level headphone amplifier from the collection of information to the production process. They are simple circuits, components are easy to buy, making it less difficult. Although each amplifier costs less than a hundred dollars, but with limited investment, it can