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How can I sync SMD LED Strips to music?

Plz give me schematic how can i sync 12v SMD LED Strips to music using TIP 31 and PSU as a 12v DC Output.
I get the idea from here



If there is a possible substitute of TIP 31 plz suggest 

Picture of How can I sync SMD LED Strips to music?
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d235 will work

adarshnarsaria (author) 4 years ago
Thanks a lot guys
is there is way to substitute the TIP 31 with anything else
It really needs to be a "Darlington" transistor, but for the current you're passing, you can make one from two ordinary transistors, if you're really struggling.
adarshnarsaria (author)  steveastrouk4 years ago
and how to do that?????
http://en.wikipedia.org/wiki/Darlington_transistor
rickharris4 years ago
See related column on the right as well.
Change the 9V battery to 12V, and put a 100Ohm resistor in series too.
+100, Ohm