star882 New Member Oct 8, 2002 #1 How do I make a projection TV out of an old laptop screen, a bright CFL, and a fresnel lens? My friend Caitlin Willams said it is possible, even though she is about as bright as the moon on electronics. I want to build one for the science fair.
How do I make a projection TV out of an old laptop screen, a bright CFL, and a fresnel lens? My friend Caitlin Willams said it is possible, even though she is about as bright as the moon on electronics. I want to build one for the science fair.
K kiko187 New Member Oct 15, 2002 #2 look in here https://www.electro-tech-online.com/threads/radio-remote-control-using-dtmf.69/