This circuit powered by photovoltaic cells was found in the November 1998 issue of Electronics Now magazine. The circuit uses two motors and can follow a line thanks to its sensors.
We find this circuit in American documentation from the 1980s. The accuracy of the circuit depends on the...
The presented circuit uses a symmetrical power source to supply an amplifier with the LM139 or...
High quality sound can be obtained from this transistor amplifier. The output transistors must be...