Found in an Electronic Design from the 90s, this circuit makes use of contemporary components, including the pressure sensor. Modern equivalent components can be used in a new project.
This simple metronome, from 1985 documentation uses only transistors and has two settings. For...
This circuit is suitable for modulating AM transmitters. The circuit is from a 1977 radio amateur...
This flasher was found in an old Hands On, but uses common components. The optocoupler can be...