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 circuit was obtained from a 1967 General Electric documentation. The circuit makes use of...
This circuit is from a 1964 Electronic Design, appearing in this section and website with...
We found this source in documentation from the 1980s. The power transistor can be the BD137 and...