Audio Circuits

Imagine our voice is strong but we whisper through a tiny straw to reach our far friend but it wont work. Same is in circuit for Simple Speaker Audio Output Transformer Circuit which works like a megaphone for sound signal. It takes strong signal from amplifier and changes it to fit the speaker so music […]

Signal Injector Circuit is small tool for electronics. It send special signal inside the circuit. This help to find problem or see where signal goes. Mostly it is used in sound and radio circuit but can use in other circuit also. Circuit Working: Parts List: Category Item Quantity Resistors 100k 1/4 watt 2 10k 1/4 […]

This 3 Band Audio Equalizer Circuit work like small knob to control the music. We can change bass with low sound, mid with voice and instruments and treble with high sound to make music how we like. So music can sound better for us by depending on type of music or room we are in. […]

This Simple Multi Siren Tones Circuit using IC UM3561 chip is like small sound box for emergency car sound. This special chip UM3561 can make many siren noise like police car “wee woo” or ambulance fast tone. It only needs few more parts and one speaker, then this circuit can make those sound come alive. […]