Almost straight from the MK484 application note.
Use a pair of walkman headphones (both elements in series) or a telephone
element (approx. 200 Ohm) to listen to this radio.
A MK484 receiver is a nice beginners project.
This version was build by Sander, age 10, and Mark, age 9, with some help
of their dad. He also supplied the 'groundplane'.
Click on the image to see the large picture.
Archive containing the Xcircuit file (encapsulated postscript).