Darley 3 bulb controller
Here is the controller found inside the 3 bulb Darley 4 way.
It uses a magnetic disk type motor. You can see part of the large disk in the picture below.
There are 4 cams behind the cam fingers you see here. Two of
the fingers are for the yellow indication.
The two yellow cams are wired together in the 3 bulb set up, but this controller
could also be used in a 12 bulb set up by removing the wire between the two
yellow cam fingers.
In the picture below, you can see the four cams and some of the gears as well.
