“焊机派”常常会遇到这样的问题,即由性能良好的元器件组装成的音频放大机,却无法得到令人满意的效果。笔者也曾遇到此种情况,总结经验教训,发觉其原因很多是因为没有对电源的“退耦”和元器件的“接地”问题进行充分的考虑,造成电路上的缺陷和走线布局的不合理而产生的。在此,笔者就把实践中总结出的一些经验、原则介绍给大家,望能与朋友们共同探讨。 Welder School often encounters the problem that an audio amplifier assembled from well-functioning components fails to achieve satisfactory results. The author also encountered such a situation, summing up the lessons learned, found many reasons because there is no power supply “decoupled” and components of the “ground” issue for full consideration, resulting in circuit defects and layout of the layout Irrational. Here, I put some experiences summed up in practice, the principle introduced to everyone, hope to discuss with my friends.