This is the circuit of a robot published in the June 1992 issue of Radio Electronics magazine. The sensors are used to drive 2 motors with reduction gears. The power is provided by batteries.
This low power circuit was obtained from an American 80's documentation. The circuit indicates the...
This circuit can operate in a 100 dB range with signals of up to 100 MHz frequencies. Similar...
This circuit was found in a 1991’s PE Hobbyst Handbook. The circuit is based on altering the sound...