This dual clock generator appeared in the February 1972 issue of Radio Electronics magazine. It is intended for project bench or educational applications and uses TTL logic.
The integrated circuit used in this project is not common today, but it can be implemented with more...
Found in an American publication from 1969, this circuit can be adapted to be used as a shield....
This current meter with many scales was found in a 80s American documentation. The operational amplifier...