FM Radio Circuit is an electric brain for the machine and it is also a small electric system which catches FM radio waves and changes to sound we can hear. This circuit also uses components such as an antenna, microphone, speaker and connecting wires, which are commonly used in many radios to receive music or […]
Audio Circuits
Voice Recorder and Playback Circuit
Does anyone get tired of buying expensive voice recorders? then this Voice Recorder and Playback Circuit show how to make easy one at home! Also, we can use it to record small message for family or friend, by just pressing two button one for record and other one to listen. Note: This project is little […]
Very Low Frequency (VLF) Converter Circuit
To begin with , this Very Low Frequency (VLF) Converter Circuit talks about one circuit, which can catch very low radio waves VLF from air and make them into sound for hearing. Also, normal radios do not get these VLF waves but they only work with higher waves; and hence, this circuit is different it […]
Digital Volume Controller Circuit
This Digital Volume Controller Circuit talks about special type of electronic volume control, which does not uses normal knob but it uses an electronic parts. Also, normal volume knob uses resistor but this one uses small computer chip to control sound level; as it gives more function and also with more correctly. Circuit Working: Parts […]
Variable Notch Filter Circuit
This Variable Notch Filter Circuit have a special filter, which can change to remove some sound frequency. Also, we can adjust it how we need and that make it useful; as this filter is also call band reject filter or band stop filter. Furthermore, it mostly removes or make small certain noise in one range, […]
300 Watt Power Amplifier Circuit using Transistors
Hey music lovers! Want your speaker sound REALLY loud? then this 300 Watt Power Amplifier Circuit using Transistors show how to make very strong amplifier circuit. Here, the circuit can give 300 watt sound with 8 ohm speaker or even more power with 4 ohm speaker. WARNING: Be careful, this circuit uses high voltage and […]