A good quality magnetic microphone is more better then a carbon microphone. The circuit is a very small good designed and using few parts to convert a carbon microphone. The circuit contains...
This is a simple electronic siren circuit, which can be used in many circuits where the need of siren is required. The circuit is very simple using only two....
A 555 tone generator circuit based on NE555 timer IC. In this circuit the IC is used as an astable oscillator....
Here is a circuit of a very sensitive microphone preamp circuit, which can be used to increase gain of microphone or boost the audio signals coming from microphone....
A high quality 12 watt amplifier circuit with stereo. The heart of the circuit is a TDA 2616 IC which is a stereo amplifier IC comes in 9 leads and SOT131 package....
A very simple two transistor amp circuit which can be use in any place where a little amplification of audio is required. This simple transistor amp is built around....
A very useful simple, portable easy to make guitar amp circuit which can be use for practicing or monitoring guitar. The heart of the circuit is a TDA7052 IC....
A very good quality and simple intercom circuit using only three transistors. By pressing the switch S2 the circuit will generate ring signals. For making two way...
This is a schematic of a 10W stereo audio amplifier using TDA2009A amplifier IC. TDA2009A is a good IC provides quality sound. It has built in features like...
Schematic diagram of a simple 7 watt audio amplifier using TDA2003 Amplifier IC. This is a good IC with many built in features like low harmonic distortion, short circuit protection....
A simple circuit diagram of a 6 watt amplifier with TA7222AP IC. It is a good quality audio amplifier IC and it has many good features like...
Here is a schematic diagram of a diy headphone amp circuit which will increase or amplify the audio in your headphones. You can use this headphone amplifier circuit...
Below is a schematic diagram of a speech amplifier circuit, this type of circuit is use to amplify the voice of a person in the crowd so every one can hear it...
This is a super simple mini easy to build 2 watt audio amplifier circuit ideal to use with small projects like pocket radios and other small audio gadgets, also work with 3v mercury button cell, this is a good IC...
This is a useful and simple 2 watt audio amp circuit using TBA820 amplifier IC. This is a great circuit to use as lab audio amplifier purpose...
This Below is a schematic diagram of a LM386 circuit / LM386 amp which can be used as a simple audio amplifer to increase the audio of your radio, mp3 players etc...
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 often feel the requirements of a simple transistor audio amplifier circuit or simple audio amplifier schematic which can boost audio a little. So here is a audio amplifier diagram which can...
This is a very interesting and useful circuit. You can use it for many purposes like when you require continues beep. When you want to test an audio frequency system you can use an audio generator but how do you test your microphone? Saying "mic testing, hello test, hello check" gets very tiring.
Many times we want a circuit which will fit in less space and run from low power so this is a circuit of your choice there are many circuits of 1watt audio amplifiers which use ICs in there circuits but this circuit use only four transistors to make a good and useful out put power of more then 1.3 watt.
Now day's audio signal preamp is used in many electronic devices. There are many types of audio preamp circuits from simple to complicated big circuits. Here we are showing you a very good design of a small circuit of signal preamplifier.
This circuit can be use for mic or any input for increasing audio of weak signals. The preamplifier discussed previously was using one transistor for amplifying mic signals but this circuit is using two transistors to further increasing the gain. The transistor shown in this circuit are making stabilized amplifier.
Below is a circuit diagram of a device which can hear faint sounds and those sounds which any normal microphone can not hear. This is a very useful circuit and one can use this circuit for many tasks this circuit can be used as a hearing aid....
This is a simple and useful project of loudhailer the circuit uses only one transistor connected with transformer which puts out a loud sound. The circuit can be easily fixed in a metal package with the speaker mounted on the top...
