Simple Intercom Circuit with Transistors

Dynamic Mic Amplifier (To Use Speaker as Microphone)

This is the circuit diagram of dynamic mic amplifier. This simple and easy built circuit can be used as a subtitute of an electret microphon... Baca selengkapnya »

Simple Audio Booster

This is a simple and low-cost audio booster circuit design. The circuit is based on general purpose amplifier and switches, 2N3392 transisto... Baca selengkapnya »

Cricket Chirping Sound Generator

This is the circuit diagram of cricket chirping sound generator based on IC 4060, a 14 stage ripple counter and oscillator IC. A suitable au... Baca selengkapnya »

19W Power Amplifier based LA4440

This is the 19W power amplifier circuit built based power IC LA4440. The LA4440 output configured in bridge connection. The LA4440 can be us... Baca selengkapnya »

15W Audio Amplifier with STK055

Here the schematic diagram of 15W audio amplifier, built based on single power chip STK055 from Sanyo.The STK055 is old power amplifier chip... Baca selengkapnya »

Surround Sound Processor Circuit

This is the easy build surround sound processor circuit using the digital delay process method. This audio processor isn't applying any ... Baca selengkapnya »

Mic Preamplifier Circuit based TLC251

Here the schematic diagram of mic preamplifier which build based on operational amplifier TC251. The TLC251 is operating in low bias. The c... Baca selengkapnya »

Stereo Tube Power Amplifier Schematic

This is the circuit diagram of stereo tube power amplifier. It applies 3 types of tube that are 2 6SF5 GT high-mu triodes, 1 5Y3 GT vacuum ... Baca selengkapnya »

12 LED VU Meter Circuit

Here the 12 LED VU meter circuit. This is a simple visual indication of the audio level signals, adaptive to various user needs. Can be adap... Baca selengkapnya »

2-Way Active Crossover Circuit

This is the schematic diagram of 2-way active crossover circuit. The "active" word means that the circuit use active component an... Baca selengkapnya »

Stereo PLL FM Transmitter based BH1417

Here the circuit diagram of stereo PLL FM transmitter based BH1417 chip. This is certainly the most recent BH1417 FM Transmitter design diag... Baca selengkapnya »

80W Power Amplifier Circuit

80W power amplifier circuit diagram based MJL4281A / MJL4302A and MJE15034 / MJE15035 power transistor. Actually the output power range is ... Baca selengkapnya »

CMoy Headphone Amplifier Circuit

The following diagram is the circuit of CMoy headphone amplifier. Chu Moy designed a very popular headphone amplifier that’s easy to build, ... Baca selengkapnya »

Simple LM358 Mic Preamplifier

This is a simple LM358 microphone preamplifier schematic diagram . The pre-amp circuit is very easy to build and.. it's a low cost proje... Baca selengkapnya »

Echo Chamber Schematic

The following diagram is the schematic diagram of echo chamber circuit which will convert the sound of input to have echo sound like repea... Baca selengkapnya »

Passive Surround Audio Circuit

This is a passive surround audio circuit for better audio environment for your home audio system. The schematic diagram is very simple, it ... Baca selengkapnya »

14W Audio Amplifier Circuit

This Amplifier circuit designed by Mike Ellis at 1999. The amplifier capable to deliver up to 14W power audio output. The pre-amp circuit ... Baca selengkapnya »

50W Amplifier Circuit based ICL8063 + 2N3055

50W Amplifier Circuit , built based ICL8063 as power transsistor driver and 2N3055 as main power amplifier component . 50W Amplifier Circuit... Baca selengkapnya »

LM3886: 68W Power Amplifier

This is a good amplifier circuit taken from electronic-diy.com. Built based LM3886, the amplifier capable to deliver up to 68W audio outpu... Baca selengkapnya »