Simple LED VU meter

513

06:47:21

Rather high-gain FETs. I haven't thought about whether it would work in real life, with the variations in transistor gain etc.

Hm... also in real life, you might want a logarithmic response, so the resistor values would follow a linear sequence, rather than the logarithmic sequence here. :)

published 7 years ago

hussam1234

7 years ago

روعه

jeff40

7 years ago

you could use pot's to compensate the variations.

eekee

7 years ago

@jeff40: true, or maybe negative feedback. I wonder how it was done in the earliest LED VU meters.

eekee

7 years ago

@hussam1234: Haha! Thanks, it is pretty.

jojuwi22

7 years ago

I like this one. Very cool circuitry overall - I'm gonna try to follow your stuff!

eekee

7 years ago

hehe thanks!

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