Description
The Kit use the LM386 I.C to amplify the audio signal, a simple external circuit, the audio signal is amplified. Circuit is simple, less use of components, welding easy. Sound volume are good, low cost, widely used in small speakers and other equipment.
Electrical characteristics
Operating voltage: DC 3 ~ 12V
Driver Speaker: 0.5W-10W Speaker 1
Circuit theory
The main circuit LM386 audio amplifier chip and audio input adjustment circuit.
By potentiometer can adjust the size of the input audio signal, thereby controlling the size of the output audio outputs.
Note: the mini amplifier board circuit is based on the LM386 I.C, the kit comes unassembled, you will need to solder the kit yourself.
Package includes: 1×Electrolytic Capacitor 1000uf 25V 1×Electrolytic Capacitor 100uf 50V 1×Electrolytic Capacitor 10uf 25V 1×Potentioment 100K with knob 1×Red 3mm LED 1×DIL Socket 8 Pin 1×LM386 IC 1×PCB 1×Resistor 10R 1×Male Pin Header 12pins 1×Stereo Audio Jack 3.5mm 1×DC Female Power Jack 2×Ceramic Capacitor 100nF 2×Resistor 4.7k
