This circuit was found in an American documentation from 1975. The components of the time can no longer be found easily, but they can be tested equivalent.
This circuit is from the LM317's own manual obtained from an old documentation. The IC should be...
This circuit should be placed between a turntable and recorder or playback media from the input to...
This simple 10-position roulette circuit with the 4017 found a 1987 documentation. The circuit can...