Audio Amplifier Circuits
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The following circuit diagram is the 100 Watt power audio amplifier circuit, build based on power amp chip LM3886. The single chip of IC LM3886 is able to amplify the audio power output up to 68W . In this circuit, the two of LM3886 are para.... -
TDA2822 audio amplifier circuit , 1.35W into 4 ohm speaker @ 6V supply. Bridge and Stereo modes possible. 3V to 15V supply voltage range. Suitable for mini hand held audio applications.... -
Stereo Power Amplifier is 2x70Watt STA550 chip audio power with BASH concept that can be connected with digital perangkkat. 2x70Watt STA550 Stereo Power Amplifier is an amplifier with BTL system with symmetrical power supply with ground. Power amplifier.... -
This is a very-very simple mini audio amplifier circuit. The circuit build based single LM383 with several discrete circuit to support LM383. The circuit capable to deliver about 7W audio output. The circuit could be built on a perf board, universal solder.... -
The aim of this design is to reproduce a Combo amplifier of the type very common in the `sixties and the `seventies of the past century. It is well suited as a guitar amplifier but it will do a good job with any kind of electronic musical instrument or.... -
Booster for audio circuit diagram. Potentiometer R5 of 100K is a linear type with an on/off switch attached. The value of C1 may need to be between 0. 05 µF and 0. 1 µF (47nF/100nF). Experiment with the value for best performance. This is a20 watts audio.... -
This electronic circuit diagram is an audio power amplifier based on TDA8571J integrated circuit, class-B output amplifier with four amplifiers in a BTL configuration, each with a gain of 34 dB. Main features of the TDA8571J amplifier circuit are : high.... -
This is the circuit diagram of a simple three transistor audio amplifier that can deliver around 100mW power to a 25 Ohm speaker. The diodes D1 and D2 provides a constant bias voltage for the transistors Q1 and Q2. The transistor Q1 works as a preamplifier..... -
The following diagram is the circuit diagram of 20W power amplifier which build based tube component EL34. EL34 is very famous tube and great for power tube amplifier. The circuit above is complete circuit contains tube amplifier circuit di.... -
This circuit is mainly intended to provide common home stereo amplifiers with a microphone input. The battery supply is a good compromise: in this manner the input circuit is free from mains low frequency hum pick-up and connection to the amplifier is more.... -
This project was a sort of challenge: designing an audio amplifier capable of delivering a decent output power with a minimum parts count, without sacrificing quality. The Power Amplifier section employs only three transistors and a handful of resistors and.... -
Discrete Class AB Transistor Audio Power Amplifier Circuit Diagram This is a class AB transistor power amplifier. It is a simple amplifier to... -
This circuit is a general-purpose 10-W audio amplifier for moderate-power PA or modulator use in an AM transmitter. With higher voltages and a change in bias resistors, up to 30 W can be obtained. The Output Stage Amplifier using transistor 2N3055 and MJE2055... -
For all of the following tests, we used a high quality signal generator from BlackStar. The PicoScope trace below shows a pure 1 kHz tone from the signal generator. Please note: although the screenshots below show the THD, SFDR and SINAD measurements in a.... -
It's based on a Philips class-H audio amplifier IC and can deliver 36W RMS OR 70W music power, all from a 13.8V supply. Our new Mighty Midget Amplifier can really pack a punch - around 36W RMS continuous into a 4-ohm load when using a 13.8V supply..... -
I picked up an LM386 Low Voltage Audio Amplifier. A little poking around and I found National Semiconductor`s data sheet, showing a schematicthat requires only 5 components for a gain of 20, and 7 for a gain of 200. Being the skeptical man I am, I built the.... -
60-Hz, This high-Q notch filter is based on the "Twin-T" design. It produces a very deep notch in the response curve at about 59. 7 Hz. This is useful to remove 60-Hz hum and noise from audio recordings or live performances. Response is down over -60db at.... -
A opamp medium power, used as amplifier of headphones with possibility drive low loads. It contains in a nutshell two amplifiers. The voltage gain, has been determined in 40dB, from the R3-4 and R11-12, for each channel, respectively. The restriction of.... -
Using LM386 power amplifier designed for use in low voltage consumer applications can be designed a very simple voice amplifier with variable gain and volume control. The gain is internally set to 20 to keep external part count low, but the addition of an.... -
It`s a classic designing of final amplifier 35 W, with two EL34 in push-pull, from the Siemens and Halske, with year of designing 24/3/1953 and code SV410/1. The amplifier it worked from 1954 until 1989, whenever it came also out except operation, with mean.... -
This is is a stereo power amplifier circuit works up to 22W on each channel. It will be 2x22W output. A few externel components required to support the main component of TDA1554. Heatsink on the power IC is a must to prevent overheating on the power IC. The.... -
60W Bass Amplifier. Low-cut and Bass controls Output power: 40W on 8 Ohm and 60W on 4 Ohm loads Amplifier circuit diagram: Amplifier... -
ASSP For Communication AN12979A AN12979A is the stereo BTL Amplifier which contained the AGC circuit for clip prevention of a speaker output. 2 This IC performs a mode change by the I C bus control system. (Standby function ON/OFF change etc. ) By Panasonic....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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