Depending on the music you’re listening to, watching a VU meter bounce to the music is always a good time. So why not integrate the VU meter right into the audio source?

Offer expires 6/30/2008. 2.21 The VU and the VI Instrument Volts, amperes, and watts can be measured by inserting an appropriate meter into the circuit. If all audio signals were sinewaves, we could ...

Audio Peak Detectors Well, the following post is an explanation of the design of simple audio peak detectors or peak indicators. The main purpose for having a VU (volume unit) meter is to monitor ...

Wiring and installation on this project is incredibly clean and they plan on using the control box for future how-tos. The simple audio circuit used for the VU is based on the LM3915.

A rechargeable, user-replaceable 3,000mAh battery provides up to 10 hours of playback through the speakers when playing a tape, or up to 15 using an external audio source.