This circuit can be used like a tachometer for measuring the speed of vehicle engine by converting its ignition pulses into linear analogue voltage output. Here is a straightforward circuit […]
Surge free Transformerless Power Supply Circuit using zero Crossing Detection
The article explains a transformerless power supply circuit which works with zero crossing detection circuit to ensure a surge free output for the connected load. An AC information without a […]
Thermostat Circuit for 1KW Room Heater using SCRs
The following is a SCR controlled room warmer circuit manufactured in 2001 which as of late got to be discontinuous so I chose to supplant it with the more straightforward […]
Fading Red Eye Circuit
This circuit is utilized to gradually light up and gradually dim a couple of red LEDs (light radiating diodes). The fading LEDs could be introduced as “eyes” in a little […]
1.5V LED Flasher Circuit
This LED flasher circuit requires only 1.5V to flash an LED lamp and therefore can be operated using a single 1.5V AAA cell. The upper circuit, shows utilizing a 100uF […]
Simplest Transistor Running Light Circuit for Christmas Lighting Decoration
This simple transistorized running light circuit can be used to produce sequential LED light chasing effect without using an IC. The drawing underneath represents a multistage light chaser utilizing just […]