Make Your Own Crystal Radio (02010DH01).

Listen to the radio as they used to in the 1920s. These radios only need an aerial and earth connection. Reception is due to a crystal which picks up the radio waves, we have simplified this with a Germanium-Diode. From 12 years, an introduction in the principles of radio communication.

Contents:

• prepared wooden pieces,
• earphone,
• Diode,
• varnished copper wire,
• cable,
• screws and nuts,
• bolt,
• electrical connector and
• instructions.