This TTL sequential flasher circuit was found in the January 1981 issue of Radio Electronics magazine. It is powered by 5 V. The frequency can be adjusted by R1.
The response curve of this circuit is given together with its configuration that makes use of...
Found in an old American documentation, this step has as input and output transformers coupling. Two...
The frequency of TTL square signal is divide by 5 with this circuit. Power supply is 5 V and the...