This circuit was obtained from the PE Hobbyist Electronics publication of 1980. The circuit is based on the 555 and is simple to assemble and can be used to control the brake lights.
This stage was found in a 1964 Electronic Design. The transistors are of the time and the shape of...
The traditional circuit was taken from a French magazine Radio Plans that no longer exists but can...
This circuit, which is present in other points of this website, was found in a 90s Hands On...