This is a super WOW demonstration! 

How much fun can one have with a complex principle such as amplitude modulation? 

A lot!  Plug a flashlight into a CD player’s or iPod’s earphone socket and transmit the sound to a solar panel. The solar panel is connected to an amplified speaker that will make the signal audible.  

See ‘Downloads’ & ‘Videos’ for more detail.

Included: Pre-amp kit, solar panel, components, instructions

Required (not included): Flashlight (A), MP3 player (B), amplified speaker (C), soldering iron, 9V battery.

Teach: amplitude modulation 

Age: 12+