LM358

Utilizing the circuit designs perfected for quad op-amps, this dual op-amp features low power drain, a common mode input voltage range extending to ground/VEE, and single supply or split supply operation. The LM358 series is equivalent to one-half of an LM324. These amplifiers have several distinct advantages over standard operational amplifier types in single supply applications. They can operate at supply voltages as low as 3.0 V or as high as 32 V, with quiescent currents about one-fifth of those associated with the MC1741 (on a per amplifier basis). The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage.

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Multiple Feedback Bandpass Filter for Woofer

“Band Pass filter is one which can pass only a specified band of frequencies. For example a band pass filter for woofers have the lower cutoff frequency as 200Hz and upper cutoff frequency as 2KHz, that is the mid range …

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Electret Mic Preamp

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LED Fader - With or Without Arduino

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DIY Digital Soldering Station (Hakko 907)

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Low Noise Adjustable Power Supply (30V-4A, CC-CV)

“Power supplies are one of the most popular topics in electronics. There are two major types of regulated power supply: linear and switching. Both power supply types introduce some advantages and disadvantages, however, a linear power supply offers better line …