Found in a documentation from the 90s, this circuit limits and amplifies a voice signal in the 800 to 3000 Hz range and is intended for transmission systems.
In this circuit of a 1978 publication, the noise generated at the collector-base junction of any...
The MOSFETs are of the type of power and the resistors have their values between 1 k and 10 k for...
This circuit was found in the February 1992 issue of Radio Electronics magazine. The circuit...