Older linear fluorescent fixtures used throughout most of the older buildings on the Western Michigan University campus utilized T12 type magnetic ballasts. This type of ballast operates at 60 hertz ...
Ballasts are power supplies or transformers for fluorescent lamps, light sources that consist of a glass tube filled with argon, neon, or other inert gas. When ballasts supply electrical current, the ...
The reason submarines are able to do this is thanks to some very important components known as the ballast and trim tanks. These are located throughout the sub at the bow and stern as well as on ...