This circuit was obtained from Dutch documentation from 1967. It uses transistors of the time which can be the BFY50 and 51 for the output and the BC series for the others.
This simple shield for microcontrollers and TTL digital circuits was found in documentation from...
In the figure we have the transmitter and the receiver for an optical audio link via infrared. The...
This bistable or flip-flop is triggered by a negative pulse applied to the collector of the...