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Differential Microphone Pre-Amplifier

Differential Microphone Pre-Amplifier

“The project shown here is a microphone preamplifier that provides high quality amplification, optimized for use in computers, media and mobile applications. The pre-amplifier provides a differential input stage, making the device particularly effective when layout constraints force the microphone …

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High Resolution Frequency Counter

High Resolution Frequency Counter

“This instructable shows a reciprocal frequency counter capable of measuring frequencies fast and with reasonable precision. It is made with standard components and can be made in a weekend (it took me a bit longer :-) ) The old school way to …

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