This is the dimmer I built and soldered on a blank proto-type PCB for my LEDPOD project (If you haven't seen it, You probably won't understand what this is for).
It works on: 3 resistor modes, Off,and On.
The switch you see in the second picture is from a fan I took apart.
The resistors I used:
- 10 ohm
- 27 ohm
- 80 ohm