In this post I have explained a simple low pass filter circuit which can be used in conjunction with subwoofer amplifiers for acquiring extreme cuts or bass in the frequency range 30 and 200Hz, which is adjustable. How it Works Several low pass filter circuits for subwoofer application are presented all over the net however […]
Newly Updated Circuit Projects:
Footsteps Detector Circuit
By sensing vibrations from footfall, a Footsteps Detector Circuit is a creative and affordable approach for catching intruders. It employs a simple setup with a low-cost loudspeaker and a mute switch to pick up even the smallest steps. This simple circuit is excellent for enhancing building and garden security. We’ll go through the fundamental components […]
How to Connect LM338 IC in Parallel to Increase Output Current
The LM338 is an adjustable 3-terminal positive voltage regulator capable of providing up to 5 amperes of output current. To increase the output current capability, you can connect multiple LM338 ICs in parallel. When you connect them in parallel, each IC will share the load current, allowing you to achieve higher total current handling capacity. […]
Touch Alarm Circuit
The touch alarm circuit senses the mains hum signal from an intruder’s body and raises the alarm sound. This happens whenever an intruder touches a potential element set as the sensor, such as the door knob, or any object that needs to be protected. If the circuit is linked with the door knob, the circuit […]
LED Arrow Direction Indicator Circuit
The arrow-shaped LED direction indicator circuit utilizing the 74LS164 based IC and a configuration of 14 LEDs arranged in the shape of an arrow is a captivating and visually appealing project designed to create an eye-catching display. This circuit is designed to illuminate the LEDs gradually, forming the shape of an arrow, and once the […]
Shock Vibration Detector Circuit using 801S Sensor
The shock alarm module that we are presenting to you can be used in a house as well as in a car. Given its low manufacturing cost, it can be replicated in several copies and connected to different positions at home. It can be also installed in a vehicle where it will trigger a siren […]