Preamp for the speakers as a microphone 2

Preamp for Speakers as a Microphone 2

The previous Preamp for the speakers as a microphone installation is indeed simple, but has virtually no gain. It is quite possible to add a second transistor to fill the gap, as […]

Simple Microphone Pre-amp

This Simple preamplifier circuit provides sufficient gain to weak audio signals from the microphone. This circuit can also be supplied […]