On This Day in Telephone History April 25, 1954, Bell Solar Battery Announced by Bell Telephone Laboratories. The Solar Battery Grew out of Attempts to make a Silicon Transistor.Something new under the sun - It's the Bell Solar Battery, made of thin discs of specially treated Silicon, an ingredient of common sand. It converts the sun's rays directly into usable amounts of electricity. Simple and trouble-free.NOTE: THE STORAGE BATTERIES BESIDE THE SOLAR BATTERY STORE UP ITS ELECTRICITY FOR NIGHT USE.

On This Day in Telephone History April 25TH 1954

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Bell Solar Battery Announced by Bell Telephone Laboratories. The Solar Battery Grew out of Attempts to make a Silicon Transistor.

Something new under the sun – It’s the Bell Solar Battery, made of thin discs of specially treated Silicon, an ingredient of common sand. It converts the sun’s rays directly into usable amounts of electricity. Simple and trouble-free.

NOTE: THE STORAGE BATTERIES BESIDE THE SOLAR BATTERY STORE UP ITS ELECTRICITY FOR NIGHT USE.

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