This circuit is from a 1967 documentation. It consists of a sensor for memories used at the time. It can be made with modern equivalent transistors. Note the 4 V symmetrical power source.
Counting up to numbers lower than 10 [between two and nine] can be done by connecting the n+1...
This is the name given to this small MW transmitter that can function as a wireless microphone. The...
This circuit causes an LED to flash on a robot when someone speaks near him, showing that he is...