This article describes an compact electret microphone amplifier but you can connect dynamic microphones with low resistance. Electret microphones can be inserted in the same box with the amplifier, it ...

This printed circuit board (PCB) is based on the design created at Eaton Peabody Laboratories (Mass. Eye and Ear Infirmary), but redesigned to work at lower frequencies. It features: High-pass input ...

Add an ear to your project with this well-designed electret microphone amplifier. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the amplification, we ...

You must have seen someone speaking on the MIC and the amplified voice coming from the speaker, how this is possible? Is there any circuitry between MIC and speaker of we can directly connect ...

This article originally appeared in the Feb. 8, 2017, edition of Radio World Engineering Extra and was posted on this website Feb. 9, 2017. If you like this content you should subscribe to Radio World ...

When designing a microphone assembly the other day, I reached for an electret condenser microphone capsule without thinking. To be strictly accurate I ordered a pack of them, these small cylindrical ...

Abstract: A new kind of electrostatic microphone which uses a foil electret between the electrodes Is described. The foil electret Is a solid dielectric material, metallized on one side, which has ...

The MAX9814 is a low-cost, high-quality microphone amplifier with automatic gain control (AGC) and low-noise microphone bias. The device features a low-noise preamplifier, variable gain amplifier (VGA ...

The MAX4466 microphone amplifier module is a very versatile and easy-to-use microphone amplifier module. As the name suggests it is based on the MAX4466 amplifier chip from Analog Devices. It offers a ...