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除电路结构有所不同而外,几乎所有的音频输出放大器都含有几个相同的部分,即放大器板、电源变压器、整流桥堆和滤波电解电容器。通常,放大器板装在散热器上,电源变压器和整流桥堆固定在机箱底部,但滤波电解电容器却无一定的安装位置,有的装在实验电路板上,有的则用适当的支架装在机箱底板上……,可谓五花八门,不一而足。然而在设计和制作时,这是一个经常遇见的重复性问题,若能对这部分电路采用通用的电路板,困难就会减少很多。图1所示电路适用
In addition to the circuit structure is different, almost all of the audio output amplifier contains several of the same parts, namely, amplifier board, power transformer, rectifier bridge rectifier and filter electrolytic capacitors. Usually, the amplifier board is mounted on the heatsink, the power transformer and the rectifier bridge are fixed on the bottom of the chassis, but the filter electrolytic capacitor does not have a certain installation position, and some are mounted on the experimental circuit board, while others are mounted on an appropriate bracket Chassis chassis ... ..., can be described as varied, but full. However, this is a recurring problem when it comes to design and fabrication, and the difficulty can be greatly reduced if a versatile circuit board is used for this part of the circuit. The circuit shown in Figure 1 is suitable