This is a real electronic hobbyist's project. More fun comes from building the gadget itself and less from the quality of results.
The receiver circuit is a hybrid of bare essentials and a bit of technology.
It may be an "oldie" receiver but it can still provide hours of enjoyment. The original diode receiver is improved by adding an audio amplifier. The channel selection
is done through capacitor C2. Coils L1 and
L2 are ready made types so that you need not contruct them yourself. They are readily available from electronic supply stores. Take note of their inductance values.
Parts Placement Layout
Electronic Circuits volume 1.0 - Circuit Nr. 37
The complete data of the electronic circuit described above can be found in the following book and is available from Amazon.com.
Click on the image to view the book.