In this post we learn how to make a powerful LED flashlight using a stepper motor and a few capacitors, and use it to create awesome light simply by a […]
3V to 12V Transistor Boost Converter Circuit
The following article will teach you how to build a simple transistorized boost converter circuit which will allow the user to acquire 12V from a 3V source very easily. Introduction […]
Simple Voltage Controlled Oscillator using IC 555
A neat little voltage controlled oscillator circuit could be designed and applied for a given purpose using a single IC 555 and a few other passive components, let’s learn about […]
Quartz Mosquito Repellent using a single IC4060
In this post we will make a highly effective mosquito repellent circuit using a single Ic 4060 oscillator reinforced with a quartz crystal for better reliability and better impact on […]
+/-5V to 12V Adjustable Power Supply Circuit
The concurrent adjustment of the two outputs enables it to be used to supply integrated circuits and other kinds of devices that require a dual supply of between + -5 […]
Keypad Lock Circuit using a Single IC
The post explains a simple failproof digital keypad security lock circuit using a keypad module and a single CMOS IC . Introduction A decimal keyboard, a CMOS IC, about three […]