The continuous on how to build a television
Step 7Place the Fresnel lens in the middle of the focusing board and use the fifth largest circle on it to trace a circle in board.
Step 8Repeat steps 2 and 3 to make a another box that will fit inside the first box. The depth on this one should only be 9 inches. Also, since this will have to fit inside the other box, make your height and width just a tad bit smaller. Take off just a small fraction of the height and width of the actual screen size
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Step 9Paint all of the cardboard or wood pieces. The insides need to be painted black for a better picture . You can either paint the outsides black, leave them as they are, or painted another color. Only use flat or matt black paint for the insides. The blacker the paint, the better the picture will show.
Step 10Set all pieces aside and let dry. They need to be completely dry before assembly.
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