Problem: I have built a wooden model of a lighthouse. I want to make the light in the house flash. I am can use a soldering iron. I have no circuit experience.
Question: How can I build a simple circuit with the following requirements?
- 9 V battery (or AA, just not C or D size)
- bulb could be anything like a Christmas tree light bulb or bigger.
The resulting circuit and battery will fit into a 2" x 2" box that the light will screw into.
It has been suggested to use LED flashers, but how can I control the speed of the flash?
This looks like the right speed to me: