Tampilkan postingan dengan label Audio Power HI FI. Tampilkan semua postingan
Tampilkan postingan dengan label Audio Power HI FI. Tampilkan semua postingan
Kamis, 10 Januari 2013

A Hiqh Quality Headphone Amplifier

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Low distortion Class-B circuitry, 6V Battery Operated Some lovers of High Fidelity headphone listening prefer the use of battery powe...

USB Powered Audio Power Amplifier

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This circuit of multimedia speakers for PCs has single-chip-based design, low-voltage power supply, compatibility with USB power, easy he...

High Power Headphone Amplifier Using BD139-40

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Firstly, I'd like to stress that the intended use of this circuit is only one of many possible applications. Apart from the obvious us...

Audio Level Threshold Control

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This circuit was originally designed for use in detecting discharges from individual neurons, where the infrequent discharges are difficul...

Guitar Control

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Stand-alone, 9V battery powered unit, Three-level input selector, three-band tone control This preamplifier was designed as a stand-alone p...

Mini Audio Signal Generator

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A small audio test generator is very useful for quickly tracing a signal through an audio unit. Its main purpose is speed rather than ref...

Three Channel Audio Mixer Circuit

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Three high/low-sensitivity switchable inputs Although the modular Portable Mixer design available on these web pages has become a ...

Digital Volume Control

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Simple circuitry, Suitable for all kind of audio amplifiers This circuit could be used for replacing your manual volume control in ...
Rabu, 02 Januari 2013

Bass Booster Circuit

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Bass Boost is today's sound... whether it's the driving, gut-vibration pulsation of disco, or the solid bass line of soft, hard, ...

Audio Booster

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The amplifier's gain is nominally 20 dB. Its frequency response is determined primarily by the value of just a few components-primari...
Selasa, 11 Desember 2012

Audio Amplifier Output Relay Delay " Speaker Protector "

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This is a simple circuit which I built to one of my audio amplifier projects to control the speaker output relay. The purpose of this cir...

Portable Microphone Preamplifier

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This circuit is mainly intended to provide common home stereo amplifiers with a microphone input. The battery supply is a good compromise:...
Selasa, 27 November 2012

Paraphase Tone Controller

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As opposed to the widespread Baxandall circuit (dating back to 1952!) a ‘paraphrase’ tone control supplies a straight frequency response a...

Balanced Output Board For The Stereo DAC

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This add-on board is designed to provide a pair of balanced audio outputs for the High-Quality Stereo DAC (Digital to Analog Converter). ...
Selasa, 20 November 2012

Audio VU Meter

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Notes The 1K resistors in the circuit are essential so that the LED's turn on at different audio levels. There is no reason why you...

Low Voltage Preamplifier

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Description: This is a special low voltage version of my audio preamp. T1's emitter voltage is biased close to half supply voltage (...

Op-Amp Mic Preamp

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Description: A high quality microphone preamplifier using a single power supply, suitable for dynamic or electret microphones. The op-am...

150W Car Amplifier

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LA47536 Four-Channel 45 W BTL Car Audio Power Amplifier The LA47536 is a 4-channel BTL power amplifier IC developed for use in car audio...

Audio Preamp

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Specification Power 12 Volts nominal 1.6mA current drain Gain 27dB Bandwidth 9Hz to 127kHz -3dB Input Impedance 99.3Kohm @ 1Khz Outp...

Loudness Control

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Specification Power 12 Volts nominal 5mA current drain Gain 13dB @ 20Hz, 9dB @ 20kHz Input Impedance 27Kohm @ 1Khz Notes This c...