Thread: seeking schematics or plans to build a stereo analog volume meter (to plug into pc speaker headphone jack)
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Old January 5th 08, 05:09 AM posted to rec.audio.pro,sci.electronics.equipment,rec.audio.tech,rec.radio.amateur.homebrew,sci.electronics.design
dizzy dizzy is offline
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First recorded activity by RadioBanter: Oct 2007
Posts: 3
Default seeking schematics or plans to build a stereo analog volume meter (to plug into pc speaker headphone jack)
wrote:

I would like to build an analog volume meter (moving needle type)
using moving needle gauges like this
http://en.wikipedia.org/wiki/Image:VU_Meter.jpg
scavenged from a dead mixer's VU meter.

It would plug into the headphone jack on a set of computer speakers
and monitor the right/left sound volumes independently.

Can anyone point me to a good website or book with schematics or plans
on building this?

How about LED bar-graph VU meter? Fairly easy to make, using these:

http://www.national.com/mpf/LM/LM3915.html

or

http://www.national.com/mpf/LM/LM3916.html

Check the full datasheet for example circuits.

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