Need I.D. on Circuit Board Items
I took one of my old laser guns apart a little while ago, but I'm not very tech-savvy. I took these pictures (very sorry about the bad exposure, blur, and quantity, I'm a bit tired) to see if any of y'all could help me. All I know right now is:
There are two circuit boards (one from the gun, one from the vest that you shoot)
The cone-shaped black thing is the IR diode
There is a receptor on the vest for the IR (no duh, right?)
There are quite a few resistors and capacitors
There are quite a few switches and push-button ignitions (used for starting games)
There is a speaker
Things I would like to know:
Is the speaker perhaps of any quality, say, for amplifying songs?
What are those semi-circle shaped black things, under them on the circuit board it says something along the lines of Q3?
The capacitors say 10v on them. (One even says 25v on it.) Does that mean it handles 10v?
What is the best way to remove the solder from the wires and board so I can usify (my own word) the parts?
What is the yellow box-shaped object on the smaller circuit board (you can see it in the fourth. sixteenth, and last picture)?
What is the circular metallic object on the larger board (seen best on the twelfth picture)?
Thanks for all and any help!