This is an audio level meter hobby circuit using LM3915 sound level IC that works great on supply range between 3V to 20V . This can be used in audio amplifiers however nowadays trend is using digital equalizer. This circuit is designed to give input voltage 1V(p-p) and a maximum input voltage of 1.4v.
Showing posts with label Sound level. Show all posts
Showing posts with label Sound level. Show all posts
Wednesday, April 21, 2010
