The demonstration began with two pretty girls on a stage being televised by old-style equipment under glaring lights. When some of the lights were switched out, the girls faded off the television screen set up in front of the audience. The old camera could not see them. Then R.C.A.'s new "image orthicon" pickup tube went into action, and the girls reappeared on the screen, brighter than ever.
More lights were turned out, but the girls still smiled self-consciously from the screen. At last, in the flattering light of a single candle, the girls on the stage looked lovely but dim. Their televised...
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