This circuit is from an old American publication. It divides a 40 to 60 MHz TTL signal by integer values such as 2, 3 or 4. The circuit must be powered by 5 V.
This circuit was obtained in an Electronics World of 1968. The operational amplifiers ones are...
This circuit works in the opposite form to the previous one and drives a relay as a load. The...
Found in a 1970 American publication, this circuit uses transistors of the time. These transistors...