| 摘要 |
<p>TRANSISTOR AMPLIFIER A low-noise, small-signal transistor amplifier particularly suited for use as a preamplifier in an acoustic or audio apparatus employs a field effect transistor having triodetype characteristics in a common source type amplification circuit, with the gate of the field effect transistor being connected directly to an input terminal which receives the audio signals to be amplified, the drain of the field effect transistor being connected to an output terminal, preferably through a capacitor for DC cutting, and the source of the field effect transistor being connected to a point of reference potential, such as the ground, through a parallel circuit of a resistor and a capacitor.</p> |
