First of all: Yes, pun intended.
Okay so this sort of relates to my previous thread. There's a schematic that another user posted that I was able to get to work fairly well. I have since removed that circuit and now I'm trying to get it to work again. I have attached to the base of the transistor pair the left audio input from my phone/laptop. The forward voltage of the LEDs is 3v each. The first pot I used was a 10k Ohm 1/2 Watt with linear taper. That one started smoking and glowing red when I had the audio jack plugged into my phone but with no music playing. I turned the power supply on and started turning the pot until the lights would be a little dim. I noticed that sometimes if I jostled the audio cord the LEDs would flash or be fully on when the pot was relatively low and other times they wouldn't come on until the pot was turned up fairly high. This is the same thing that happened with the second pot (which I just spent an hour driving to radioshack to buy) except this time the audio was from the laptop and again, no music was playing. Here's a drawing of my working schematic:
It's kind of cutoff but the Vcc is 17 volts and that is from a 12v 400mA wall-wart.
Here's what the breadboard looked like when I smoked the second pot:
You can't see the tip31 transistor because its off the screen but you can see its legs.
Anybody got any ideas as to what's going on here?
Okay so this sort of relates to my previous thread. There's a schematic that another user posted that I was able to get to work fairly well. I have since removed that circuit and now I'm trying to get it to work again. I have attached to the base of the transistor pair the left audio input from my phone/laptop. The forward voltage of the LEDs is 3v each. The first pot I used was a 10k Ohm 1/2 Watt with linear taper. That one started smoking and glowing red when I had the audio jack plugged into my phone but with no music playing. I turned the power supply on and started turning the pot until the lights would be a little dim. I noticed that sometimes if I jostled the audio cord the LEDs would flash or be fully on when the pot was relatively low and other times they wouldn't come on until the pot was turned up fairly high. This is the same thing that happened with the second pot (which I just spent an hour driving to radioshack to buy) except this time the audio was from the laptop and again, no music was playing. Here's a drawing of my working schematic:
It's kind of cutoff but the Vcc is 17 volts and that is from a 12v 400mA wall-wart.
Here's what the breadboard looked like when I smoked the second pot:
You can't see the tip31 transistor because its off the screen but you can see its legs.
Anybody got any ideas as to what's going on here?