New ecological remote control for TV set
Aug 12, 2008 by Johnny
The remote control has a handle that reacts to the pressing by spinning a mechanism causing the dynamo to produce current about 20-30 mA. That is enough for the infra-red light diode to send a signal. Pressing the handle makes it possible to switch the channel. Two subsequent pressings will turn the TV set on or off. To operate the sound volume it's required to hold a special button in pressed position.