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电子管功放与晶体管功放相比,音色更加醇厚、柔和、耐听。“胆”机的线路并不复杂,但由于其元器件所承受的电压较高,致使许多发烧友对其敬而远之。笔者在闲瑕之余,制作了一台甲类小功率胆机,在此将它介绍给大家,该机线路简单,音质佳,有兴趣者不妨一试。整机线路图见附图。图中仅标出一个声道,另一声道完全相同。每一声道由1只6N11,1只6P3P共两只电子管组成。前置电压放大双三极管6N11担任。6N11是一只低噪声,中μ值标准小九脚玻壳
Tube amplifier compared with the transistor amplifier, the sound more mellow, soft, Naiting. The circuit of the “gall bladder” machine is not complicated, but due to the high voltages it is subjected to by its components, many fans are at arm’s length. In addition to the flaw, I made a Class A small power amplifier, which will introduce it to you, the line is simple, good sound quality, there are interested parties may wish to try. The whole circuit diagram shown in the drawings. Only one channel is marked in the picture, and the other channel is exactly the same. Each channel consists of a 6N11, a 6P3P total of two tubes. Preamplifier dual transistor 6N11 as. The 6N11 is a low-noise, mid-standard, small nine-foot glass bulb