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.
We found this circuit in an English publication of 1976. It can be easily assembled by changing the...
This circuit was found in an old Radio Electronics, but can still be assembled as the components are...
We found this circuit with duty cycle adjustment in the May 1988 Radio Electronics magazine. The...