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Diameter 50mm Fresnel Lens for DIY TV Projection Solar Cooker &40mm Focal Length 608651194699 | eBay
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Jim St. Leger on Twitter: "Great Sunday family project: disassembling an old RCA rear projection TV. Learning how it works; getting Fresnel lens. #unmake #video https://t.co/r4h6RjL09U" / Twitter
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