Below is an electrical diagram of what you are trying to accomplish. The easiest radio for this conversion has only an AM band. Then you can solder ...
Step 4: Loosely wrap seven turns of wire
Wrap seven turns of magnet wire around the flesh-colored coil on the ferrite rod antenna. The turns can be a little loose. Spread the turns out as evenly as possible over the length of the flesh-colored coil.
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