sound activated led

[sharpy]

Hi,

Hoping this is faily simple, I want the build a simple circuit to test an audio output.

Upon any audio being detected I want the LED to light, fairly simple I hope! I am going to plug this into a headphones output.

Im a complete novice at this, would appricate any help including circuit diagrams, components etc... I can manage the soldering, just

Thanks
Sharpy

 

[(*steve*)]

I would suggest a single transistor B class amplifier with a LED and a resistor as the collector load, AC coupled to the signal source.

I can't easily draw you a schematic at the moment, sorry.

 

[florinanghel]

What's the output voltage?

 

[sharpy]

I would suggest a single transistor B class amplifier with a LED and a resistor as the collector load, AC coupled to the signal source.

I can't easily draw you a schematic at the moment, sorry.

thanks steve,

can anyone help with a schematic for this, i am a novice and wouldnt know where i would start