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How to connect a VU meter to an amplifier ?

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shad

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VU meter question

I just got analog VU meter and i dont know how to connect it to a amplifier.Does + and - marks on device goes BEFORE(between input chinch and volume pot) or AFTER(between volume pot and amp boards) the volume pot?
And + and - marks means + is signal and - is ground ?
 

barrybear

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If the meter you have is a strait forwared moving coil meter then you will need some electronics to interface it to the signal line in your amplifier.
The other option is to use it as a power meter were you can experiment with a resistor and diode combination to power the meter from the output stage of the amplifier.Remember any load you put on the signal line could introuduce distortion.
Barrybear
 

crono

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Remember olso that the VU meter has a dB scale. So your interface must have a logaritmic response.. :-?
 

btbass

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The VU meter (volume units) goes across the input to the amplifier,
+ to the hot lead, - to the ground return lead and after the volume controle.
A true VU meter needs no other circuitry.
They are normaly set to indicate 0dB with a 1 volt RMS sine wave into the amp. :eek:
 

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