INSTRUCTABLES PRANK BOX | JAMECO PART NO. 2169504 The Prank Box is basically a sealed wooden box with an electric bell inside that is activated by a key switch. Once it is turned on, a relay inside the box is latched and it cannot be turned off without knowing the secret trick (spoiler alert: magnets). Quite understandably, a completely sealed box with a ringing bell inside that doesn't seem to stop can quickly become maddening. It is very funny to watch people ponder the implications of the device, reluctantly turn it on, and then stress out when they cannot turn it off. It is even funnier to get panicked emails from your friend in Canada after you mail it to him without any explanation, and he decides to ignore the directions on the box and turn it on. Experience Level: Beginner | Time Required: 5-8 hours Required tools and parts: Wood glue & woodworking tools Heat gun Paintbrushes Epoxy Electric bell Drill and 1/8” drill bit Red and black wire Clamps Soldering iron Bill of Materials: Quantity Jameco SKU Component Name 1 617545 Magnetic Proximity Reed Switch 1 105832 Round Keylock Switch 1 105794 Metal 9V Battery Holder 1 216452 9V Battery Snap 1 216401 4-D Battery Holder 1 2077386 PC Mount Relay 1 419186 Heat Shrink Tubing 1 198731 9V Alkaline Battery 4 215845 D-Cell Alkaline Battery 8 182685 Cable Ties