This transistorized stage has a high gain, being adjusted by VR1. The circuit can be used as an excellent audio preamp. We found this circuit in a 1996 English publication.
The circuit shown in the figure is suggested by Intersil (www.intersil.com) and makes use of the...
This circuit was obtained from American documentation from the 1990s. The transformer can be a car...
National Semiconductor suggests the figure circuit for stabilizing the peak value of an...