At times when I was working on my senior project, the hardest thing was sourcing the necessary parts. Here is one piece that we acquired which we didn't actually end up using:
It is a 10 watt, 2 meter band RF power amplifier. A Heathkit model, no less. I don't actually know for sure that it works, but I only operate on the 2 meter band with my handheld radio, so I don't really have a need for this amplifier.
If you want to see my senior project poster, you can find it here.