This simple Two-Way Intercom Circuit let two places talk to each other like old home or office system. Main parts of this circuit are: Microphone: change voice to electric signal Audio amplifier (LM386): make mic signal strong Speaker: change strong signal back to sound SPDT switch: choose talk or listen mode Battery: give power to […]
Audio Circuits
IC LM386 Based Voiceover Project Circuit
IC LM386 Based Voiceover Project Circuit is small audio project. It takes mic sound and makes it louder with LM386 chip and then sends to speaker. We can use this for public speaking, mix audio with mic first or talk in presentations. IC LM386 chip is easy to use and uses less power and give […]
40 Watt Audio Amplifier Circuit
40 Watt Audio Amplifier Circuit makes small sound signal big so sound come out loud from speaker. We can hear music or audio more loud with this. Main part is TDA2040 IC which is used in this easy circuit. This IC is single chip in pentawatt case and works as class AB audio amplifier. Circuit […]
Simple 5W Audio Power Amplifier Circuit
In this post for Simple 5W Audio Power Amplifier Circuit IC LM384 is strong amplifier chip used in basic electronics. Chip has fixed volume gain of 34 dB to make it cheap. Mic can connect easy to ground that make chip special. If chip get too hot it reduce power by itself. It also handle […]
Simple Machine Gun Sound Generator Circuit using IC 555
This project for Simple Machine Gun Sound Generator Circuit using IC 555 which makes circuit like machine gun sound, short and fast bursts. 555 chip give quick electric pulses and controls the sound timing. Pulses turn into sound and make “rat-a-tat-tat” noise. Want loud sound? Easy! Add amplifier and make sound big and strong. Circuit […]
Simple Light Dependent Screamer Circuit
Fun small and Simple Light Dependent Screamer Circuit make sound change with light. It uses LDR like a special resistor which changes with light. More light like sound gets louder or higher. It is called the light dependent screamer. Circuit Working: Parts List: Component Type Value Quantity Resistor 1k 1/4 watt 1 Light Dependent Resistor […]