All you need is an old am/fm radio, some duck tape, an exacto knife, some scissors, a few screw drivers, and some ingenuity!
Step 1: Gathering your supplies!
Ok, lets get going!
items you need.
1. Roll of duck tape.
2. Some card board
3. One pair of scissors.
4. One Exacto knife.
5. assorted small screw drivers.
6. One old Am/Fm radio, preferably battery powered.
(I don't recomend using a wall powered radio, as ducktape would be the only thing between any one using the radio and a live AC transformer, Dont want anyone getting shocked. )
Step 2: Getting started.
Here is a picture of the radio i used, it cost me 75 cents from good will, and it works great.
Ok, time for the fun part, go ahead and take the radio apart, be careful here, as most small battery radios have the battery housing in the plastic case, so be careful not to break off the wires that connect the radio circuts to the battery case.
Step 3: Removing the battery compartment from the outside plastic housing
Ok, here is a picture of the radio with the cover open, you can see the battery compartment is made into the plastic housing of the outer case.
I used a dremel tool to remove the battery compartment, from the outside case.
Step 4: Cutting out some cardboard.
You will need one piece of card board slightly larger than the circut board itself, an 1/8 to a 1/4 bigger should do fine.