Low impedance mini amplifier

This circuit can apply to signal sound source that has low impedance , such as from 4-16 ohm size loudspeakers or telephone earphone that use to replace , Micro phone. If use a loudspeaker replaces the rapidity will enough in sound checking that has been born from walking. The output this can feed reach input of high power amplifier the other next.

LM380 mini size Amplifier
This be mini size power amplifier 2 watt OTL that use IC LM380. Be base readymade circuit for side sound work and the communication. Which use outside equipment adds least. The C6 can choose get many the value since 47uF to at 470uF which , have a voice good bass. The C3 use for decrease ta ...
Simple Amplifier by Transistor AC128
I find this in my old circuit electronics book. It is very a small power amplifier, but good quality audio class AB amplifier in hi-fi applications. The component capable of delivering 2W continuously an used the AC128 thansistor into a 8 ohm load and 5W peak. with the proper 9 volt unregulated ...
mini amplifier for computer music
It is mini old power amplifier circuit low power at have strip zone frequency wide. It develop upward for apply to change digital signal to analog signal circuit (DAC) and change low filter circuit . For be born the sound of music. Which build by Chinese gambling cow staggers to stagger, By ...
High volt mini Amplifier with UJT transistor
This be power amplifier circuit it work with high volt power supply about 125V directly. It composes UJT transistor and transistor the ordinary. This circuit uses transformer sing bail with then apply to high volt and use a loudspeaker has easy. It then get into trouble a little. You can f ...
Small IC Amplifier 2 watt using LM380
This be IC Amplifier circuit 2 Watt size by using integrated circuit the circuit amplify to model to is inexpensive number LM380 - 14 sizes are leg. It will give power to electricity enough work , for the project of small-sized stereo ,and seeking dot lose of the stereo. It is OTL Amplif ...