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用场效应管制作功率放大器,不仅输出电流较大,且音质具有“胆”味。笔者花了一段时间,参考了一些线路,精心设计,并结合实际制作、修改、调整,成功地完成了一台由8只场效应管组成的双声道(每声道4只)立体声功率放大器。 该功率放大器电路图如图1所示输入部分较为简洁先进,采用一对性能指标完全一致的音频低噪声管C1815组成差分放大电路。由负载输出端的
FET made by the power amplifier, not only the output current is larger, and the sound quality has a “gall” flavor. I spent some time, with reference to a number of lines, well-designed, combined with the actual production, modification, adjustment, successfully completed by a 8-channel FET composed of two (4 per channel) stereo power amplifier . The power amplifier circuit shown in Figure 1, the input part of the more concise and advanced, with a pair of audio performance indicators completely consistent low-noise tube C1815 differential amplification circuit. By the output of the load