This experimental monostable CMOS circuit, activating an LED was found in a documentation from the 1980s. It is recommended to connect in series with the LED a limiting resistor of 470 ohms or more.
This circuit emits a sound when a magnetic field, of a magnet, for example, approaches the sensor....
This circuit provides a linear charging for the capacitor. Time interval is adjusted by P1. The...
This circuit is from a documentation from the 70s, but it can be assembled with a TIP32 transistor in an...