This circuit can work with almost any JFET. The circuit is from an Electronics Now from April 1993. It is powered by a 12 V battery, but can also be powered by 9 V.
May 2016 - It can be obtained from Mouser Electronics new microcontrollers from Texas MSP430...
This passive circuit was found in a 1980s documentation. The circuit serves to indicate the...
This circuit can be adjusted to time timer intervals up to1 hour using a 2,200 µF capacitor and a...