Radio: 30^ Conversion

One big stumbling block to color TV is the cost of converting existing black & white sets. By last week ingenious amateurs were showing TV engineers how to get around it. One such was a Roselle, N.J. electrician named Forrest Killy who converted his set to color with 30¢ worth of red, blue and green Cellophane.

CBS engineers, making daily experimental color telecasts from Washington, found that Killy had set up a Cellophane wheel, driven by an old phonograph motor, before his TV screen. Once the wheel was synchronized with the transmitted signal he got a six-inch color picture. "Anyone can do...

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