This circuit was found in February 1976, Radio Electronics magazine. The components are from the time and are based on the 555. The power supply must be provided with the indicated voltages.
This circuit, obtained from the component manual used, has an ultra narrow 1 kHz range given by...
The figure shows how to implement a No – OR or NOR function with 1 general purpose transistor. The supply...
According to its author, this device indicates the amount of force applied to the sensors. The...