INTEREST in the progress of television is international. Many countries will expand their TV stations and viewing audiences in 1953. A special hearing aid for deaf radio and TV listeners, shown in photo A, recently was demonstrated at the National Radio Show in London. Volume and switching are controlled by means of two knobs on the switch box connected either to the radio or to the TV set.
Here, in the United States, TV receivers are being built into the walls of new homes. One manufacturer of mantels includes a 17- in. TV sets of standard make in one of its mantel designs illustrated in photo B. The new UHF (ultra-high-frequency) TV stations will soon be on the air both in cities and in areas not now served by the standard VHF stations. These UHF signals require special antenna arrays for their reception. The one shown in photo C is claimed to cover all television channels, both standard VHF and the new UHF.
Many troublesome TV-interference prob- lems will be solved in 1953. Manufacturers and servicemen are improving their prod- ucts and techniques. Many set owners can help themselves and save time and money within reasonable limits. For example, if you are in an area where line voltage tends to increase up to 140 volts you can protect your set by plugging in a line-voltage ballast resistor between the TV set and the electric receptacle, as illustrated in photo D. Photo E shows a TV-picture-tube reactivator that is claimed to lengthen the useful life of worn and dim picture tubes that normally would be discarded.
The RCA tricolor picture tube, so important in the all-electronic color-TV system, appears in photo F. Basic improvements in these three-gun tubes have been made.
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