The objective of this lab was to design a practical audio microphone amplifier. At the same time the DC imperfections of the LM741 Op-Amp were investigated and strategies to minimize the overall DC ...

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 ...

We’re talking of course about the carbon microphone amplifier, a piece of telephone technology which made its way into consumer electronics. The carbon microphone is a container of loosely ...

I am planning to use OPA1664 as a pre-amplifier to amplify microphone signal, using low pass sallen key topology which I have generated from TI webench. I am using dual power supply (+/- 1.5V).