Hey, first off, I have searched around a bit but have yet to find what I was looking for. I'm pretty new to lasers and know a little but not a while lot about them. I've taken a few cheapies apart and played with them just to learn a bit. Well, I bought the "200mw" 405nm pen style offline for around 60 bucks. Well, I dropped it, and it stopped working. So I took this one apart to see what was up. As soon as i pulled it apart, a little tesla type coil fell out. It appears it has come unsoldered from the board. Below is a picture of the coil and you can see where it is attached to. What is the purpose of this coil?? I assume it has the purpose of any other coil to regulate voltage and all that jazz. But I was hoping someone was more familiar with y little set up here and may be able to guide me a bit. Is this nec here, can it be replaced with something else that may give this laser more power when I put it back together such as a resistor? Like I said, I'm new at this so I'm sorry if this is a dumb question. Also, there appears to be a ground wire coming off of the board. Is this just supposed to touch the inner barrel? Can it touch the metal showing on the outer area of the diode? It looks like this is how it was set up before.
heres a picture to clarify: the part where the coil connects to is right net to the spring, fts between the two solder areas, soldered on both sides.
heres a picture to clarify: the part where the coil connects to is right net to the spring, fts between the two solder areas, soldered on both sides.
Last edited: