Author Topic: DIY VU meter  (Read 672 times)

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Offline ezalb98Topic starter

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DIY VU meter
« on: February 05, 2024, 05:12:25 pm »
Hello everyone, i'm new here and i'm also new in to eletronics!
I was wondering if this circuit that i made will work.
So, the project is an analog VU-Meter. Not an accurate professional thing, just a bouncing meter.
I'll put this circuit in the speaker out that goes to the speakers of my stereo.
Don't mind about the generator (i just had to simulate an AC current) and also about the voltmeter at the end, there i'll connect the meter.
Thanks to anyone who will help me!


 

Offline Andy Chee

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Re: DIY VU meter
« Reply #1 on: February 05, 2024, 05:19:01 pm »
If this VU meter is to be connected to your speaker level output, you may need signal attenuation. 

How powerful is your speaker output? 5W? 50W?
 

Offline coromonadalix

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Re: DIY VU meter
« Reply #2 on: February 05, 2024, 06:13:04 pm »
normally you measure in parallel  of say 2, 4, 8 ohms load  etc ...

 

Offline BeBuLamar

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Re: DIY VU meter
« Reply #3 on: February 05, 2024, 08:55:00 pm »
You are going to use a digital panel meter? You wouldn't be able to read anything.
 

Offline ezalb98Topic starter

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Re: DIY VU meter
« Reply #4 on: February 06, 2024, 06:40:49 pm »
If this VU meter is to be connected to your speaker level output, you may need signal attenuation. 

How powerful is your speaker output? 5W? 50W?
From the manual:
Rated Input Power 5W
Max. Input Power 10W
 


Offline Manul

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Re: DIY VU meter
« Reply #6 on: February 06, 2024, 08:23:54 pm »
It might cause slight audio distortion. I would add some series resistance before or after the diode bridge to minimize non linear loading.
 
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Offline BeBuLamar

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Re: DIY VU meter
« Reply #7 on: February 06, 2024, 09:22:25 pm »
You need to find out the impedance of the meter.
 


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