Equipment Indicator Using Two LED
This simple circuit aims to provide an indication of an appliance if it is ON or OFF with the use of green and red LEDs. BC337 – a small signal NPN Silicon AF medium power transistor used for general purpose switching and amplifying applications with features such as TO-18 manufactured package, suited for AF driver stages and low power output stages, and divided into three group types. Single Pole Single Throw (SPST) – a single on-off switch where the two terminals are either connected together of not connected to anything The indication produced by the LEDs could mean that the red LED will illustrate that the equipment is turned ON while the green LED will illuminate upon turning OFF the same appliance. It could also be the other way around since green normally signifies that there is life on an equipment. This is applicable with any appliance that is powered and operated by AC mains which can be 230 V or 115 Vac. A suitable switch SW1 made of single pole single throw type will be cap...