Hello, This is my Proton Pack I made during the summer. I obviously did NOT follow ANY instructions or plans. I did this all with my head and a few car radio parts, computer parts, and whatever I found in my Dads work-room. Not an exact replica but it is something to wear on my back when I get in my moods. All I had to pay was for the alice pack frame. The trap was some battery I found with a few touch ups.