| 摘要 |
<p>A multi-stage solid state amplifier (110) emulates the distortion associated with grid current flow in a multi-stage tube amplifier (10) by means of a clipping device (162, 164, 166) in the circuit between each series connected stage (112, 114, 116, 118). In a particular embodiment, each stage (112, 114, 116, 118) includes a field effect transistor (FET) (112, 114, 116, 118) and the clipping device (162, 164, 166) is a diode (162, 164, 166). In another embodiment, each stage (112, 114, 116, 118) includes a Darlington connected pair of transistors (312A, 312B, 314A ... 318B). An input diode (374) and a multilevel biasing circuit (380) emulates a tube circuit input. <IMAGE></p> |
