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既保持高输入阻抗电压驱动特点,又表现出电流随电压而增加的非饱和型电流—电压特性的静电感应晶体管(Static Induction Transistor——SIT),是由日本东北大学电气通信研究所的西沢润一设想、研究出来的。由于它的良好的温度特性、大功率输出、低失真、低噪声等特点,首先在音频放大器上被采用,并收到了极好的效果。而且,进行了从数MHz 到数GHz 频带内大功率输出分立元件的研究试制,并使认为双极晶体
Static Induction Transistor (SIT), a non-saturable current-voltage characteristic that maintains high input impedance voltage drive characteristics and exhibits an increase of current with voltage, is manufactured by Nippon Yuden Co., Ltd., Institute of Electrical and Telecommunications, Northeastern University Imagine, study out. Because of its good temperature characteristics, high power output, low distortion, low noise and other characteristics, the first in the audio amplifier is used, and received excellent results. In addition, a pilot trial of high-power discrete components in the frequency band from several MHz to several GHz has been conducted, and the bipolar crystal