This circuit can be used as an amplifier for musical instruments or even with your cell phone. The circuit is old and was found in the 1990 edition of Radio Electronics Experimenter magazine.
This filter that can use any operational was found in a French documentation from 1982. The power...
In the figure we present an extremely simple circuit of a voltage source regulated by a zener...
The maximum current of this power supply is 2 A and the output voltage can be set between 6 and 24 V. The...