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 […]
40 LED Bicycle Light Circuit
A simple bicycle flashing light circuit using LED arrays is explained below, which will produce decorative, alternate flashing effect on the connected LEDs. The 555 circuit design below is a […]
Light Operated Relay Circuit
In this post you will learn about a very simple light activated relay circuit in which a relay is toggled On/OFF in response to the light or darkness using a […]
Theremin Circuit
Theremin circuit is a device which generates musical effects in response to the capacitive proximity of a human hand. This is the only musical instrument known to the writer that […]
Precision Rectifier Circuit
This circuit can be used to convert an AC signal into DC output with extremely high precision. The post explains a simple precision rectifier circuit using just two opamps. This […]
Sine Wave Oscillator Circuit
This simple oscillator circuit can be used to generate symmetrical sine wave frequency output. To maintain oscillation the op. amp. must have a gain equal or exceeding this attentuation which […]