So I have a fairly simple circuit that is supposed to be reacting to music.
Here is what I have so far: 5 5mm LED lights with a forward voltage of 3.2 volts. They are hooked up to a AC converter (simple wall plug for electronics) that is converting it into 16.3 volts of DC power. I have an auxiliary cable that I cut in half and am using the wires out of the bottom to connect it to a transistor. I am wiring all of this to a TiP31 transistor. Here is a diagram of it: http://www.instructables.com/image/FMZXXB8G5W7R47J/Building-the-circuit.jpg (Disregard the 12v battery and only 4 leds in the picture. ) PROBLEM: The LEDs are nice and bright when hooking up the power directly to them. BUT when I hook up this to the transistor and play music through the aux cable the LEDs barley light up. They are reacting to the music which is good but they are no where near half their brightness and this is when I am blasting the music! So I need help... What am I doing wrong or not doing at all? Does it make a difference if I use an aux cable vs an old headphone cable? I need to help on how to get the LEDs to light up more without blowing my speakers... or eardrums for that matter.
Also if this is the wrong place for this post, I am sorry. I'm kind of new to this forum.
Any advice or suggestions would be helpful.