Category Archives: preamplifier

Low-Cost Electret Microphone Preamplifiers

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Before the invention of microelectromechanical system (MEMS) microphones, almost all microphones in cell phones and other electronics were a type of condenser microphone called the electret microphone. The fact that …read more Continue reading Low-Cost Electret Microphone Preamplifiers→

This Tube Preamp Has A Nixie Volume Display

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The pursuit of audiophile hi-fi is one upon which many superlatives and perhaps a little too much money are lavished. But it’s also a field in which the self-builder can produce their own equipment that is as good or often better than that which can be bought, so it provides …read more

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