This circuit was found in an ancient American documentation. The power supply is not given, but we have the voltages used. The relay is sensitive type for high voltage.
The voltage gain of this circuit is 1,000. This gain is given by the ratio between the 10 M ohm...
This circuit was found in an old publication about transistors. The circuit can be used to drive...
The circuit presented with low drift is from the Motrorola LinearDatabook of 1990. The circuit...