Tag Archives: Amplifier

18W + 18W Stereo Hi-Fi Audio Amplifier (TDA2030)

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2 × 18W Hi-Fi Stereo Power Amplifier based around two TDA2030 ICs. It has good input sensitivity, low distortion, good operating stability and full protection against overloads and output short-circuits. It can be used as a booster amplifier for existing small systems or to drive a second pair of speakers… Read more »

2 Watt Audio Amplifier

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Designed for self-powered 8, 4 & 2 Ohm loudspeakers, Bass-boost switch This amplifier was designed to be self-contained in a small loudspeaker box. It can be feed by Walkman, Mini-Disc, iPod and CD players, computers and similar devices fitted with line or headphone output. Of course, in most cases you… Read more »

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 powered headphone amplifiers, not only for portable units but also for home “table” applications. This design is intended to fulfill their needs. An improved output driving capability is gained by making… Read more »

ECG Amplifier By TLC274

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This circuit allows an ECG signal to be displayed on an oscilloscope. Opamps IC1a, b and d form an instrumentation amplifier with a gain of 201. IC1c amplifies the common-mode signal by a factor of 31, and supplies this signal to the right leg. The first consequence of this is… Read more »

Compact High-Performance 12V 20W Stereo Amplifier

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Amplifiers which run from 12V DC generally don’t put out much power and they are usually not hifi as well. But this little stereo amplifier ticks the power and low distortion boxes. With a 14.4V supply, it will deliver 20 watts per channel into 4-ohm loads at clipping while harmonic… Read more »