We found this circuit in a Radio Electronics magazine from November 1976. The clock frequency is divided by 10 and the maximum value depends on the integrated circuits used.
This circuit provides a multiplexed signal to be applied to the input of an FM transmitter. The...
This simple TTL circuit indicates which was the first to press one of the four pressure switches. The...
We found this circuit in a documentation from the 90s, which can be adapted in most cars of the...