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前言自从一九六二年九月,日本美利欧公司最早出售晶体管放大器以来,至今十年期间,大部分的放大器都成为晶体管化了。和以前运用较多的电子管放大器相比,这种双极晶体管放大器在电性能(频率特性,失真特性,信噪比,耗电量,可靠性)和机械性能(小型化,强度)等诸方面都显示出很大的优点,尽管如此,但是人们还是喜欢电子管放大器的音质,有的人就非常喜爱2A3的音质。虽然电子管放大器和晶体管放大器在音质方面存在着非常微妙的差异,但是目前还作不出哪个更好的结论。因此,人们又用具有三极管特性的功率场效应管制成了放大器。场效应管是继电子管和晶体管后的第三种器件,它具有电子管和晶体管二者兼有的特性,同时在音质方面也能令人十分满意。
Foreword Since the first sale of transistor amplifiers by Japan’s Mercury in September 1962, most of the amplifiers have been transistorized over the decade. This bipolar transistor amplifier exhibits excellent performance in terms of electrical properties (frequency characteristics, distortion characteristics, signal to noise ratio, power consumption, reliability) and mechanical properties (miniaturization, strength) compared with the tube amplifiers previously used more Have shown great advantages, however, but people still like the tube amplifier sound quality, some people are very fond of 2A3 sound quality. Although there is a very subtle difference in sound quality between a tube amplifier and a transistor amplifier, there is no better conclusion so far. Therefore, people also use the power transistor with transistor characteristics made of the amplifier. FET is the third transistor after the tube and transistor devices, it has both the characteristics of tubes and transistors, while the sound quality can also be very satisfied.