I, admittedly, am terrible with elecronics. I have never done them before, and although I took some rudimentary electronic classes in high school (basically learning Ohm's law, that's it...) - I have never built a circuit before.
But I am trying to follow the directions to make this circuit which are plans for a diy laser alarm system that I would like to incorporate into a game I am making.
The schematic is:
I have all the parts, except for the 5K variable resistor - so I substituted a 10K variable resistor (not sure if that would work, but it was only a $1 or so...)
Anyway, I realized, as I put this together, that I had no idea what direction to make this circuit. In other words, while I understood what the base, collector and emitter were on the transistor, I didn't know what side to solder to what for the other components. For example, what direction does the capacitor go? (What side is soldered to what?) In addition, how do I solder the variable resistor into this whole mess? What gets soldered to what pin? (Assuming that the 10K variable resistor will work, the resistor I have has three pins, and a small slotted dial on the end for changing the resistance).
Also, I have two components, the battery holder and the siren with red and black wires. How do the colored wires get worked into this (In other words, how do they get connected?)
Any help would be appreciated!
Post edited by: Etienne_72772, at: 2008/07/16 17:10