Simple Mic Preamp Circuit Diagram. Table of contents show all how it works. The schematic for simple microphone to speaker circuit is given below the circuit is exactly same as shown in the lm386 datasheet from texas instruments.
The 10k potentiometer is used in the circuit to increase or decrease the gain. First of all we connect a 9v power supply to the circuit. To drive a general speaker.
You can connect condenser mic with an amplifier circuit as given below diagram.
You can connect condenser mic with an amplifier circuit as given below diagram. This is a versatile mic preamp circuit and can be used for many purposes. Simple mic amplifier circuit diagram this is a simple mic amplifier circuit which is using two stages first a mic preamplifier circuit stage and second a audio amplifier circuit stage. We removed the 10k pot section and added additional bias circuitry of the microphone amplifier.
