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“If a small magnifying glass will burn things with sunlight, how much power could you get from a lens as big as you?” So begins the following video. Right now people all over the country are getting flat screen TVs and selling their old rear projection TVs. Many people are giving them away for free.
Rear projection TVs have several useful items inside, but the best one is the large Fresnel lens, which is basically a giant magnifying glass. On a sunny day, you can generate an incredible amount of heat with one of these. Watch the video below to see what I’m talking about and learn how to get your own.
I have been waiting to remove one of those big projection screen tvs for years. It is in our basement. It stopped working for some reason. I checked what i could get at, but the way it was put together did not allow me to get at the main board where I found 4 tiny fuses. Only after tearing it apart did i have access to the fuses. Still it was a nightmare of capacitors, heat sinks and more. So I got the big fresnel lens ready for a nice frame like yours. I have yet to tear apart the three lights (red, blue, green) for the parts. All that is left is a box on wheels. Now I can get it up the basement stairs myself and outside. THANK YOU SO MUCH FOR THIS VIDEO. I was waiting for the right time to ask my daughter’s boyfriend to help me. Now I am happy, thanks to you ! Love your stuff ! You are the best ! I am also going to try the drill phone/ battery charger next !