By 1919, improved transmitting and receiving tubes had made transatlantic voice transmission possible.
2.
Chapman said her 17-month-old son, John, received tubes several months ago.
3.
Nuvistors are among the highest performing small signal receiving tubes.
4.
See, for example, the RCA Receiving Tube Manuals.
5.
In April 1924, Rogers travelled to the United States and saw experimental AC receiving tubes at the laboratories of Westinghouse in Pittsburgh.
6.
Beginning in 1962, Neumann offered a fully functional Nuvistor, small signal receiving tube replacement kit for the VF14 and required minor circuit modification.
7.
The study looked only at children who received tubes because of fluid, not specifically to relieve chronic infections such as Anna Blair's, although Paradise said some of the children had experienced recurrent ear infections.
8.
On the oldest types of piercing gun, one starter stud is manually loaded into a receiving tube, and its matching friction back is loaded into a holder closer to the main part of the instrument.
9.
The development of amplitude modulation ( AM ) and vacuum tube transmitters during World War I, and the availability of cheap receiving tubes after the war, set the stage for the start of AM broadcasting, which sprang up spontaneously around 1920.
10.
Although his breakthrough would be incorporated into the design of RCA's " iconoscope " in 1931, the U . S . patent for Tihanyi's transmitting tube would not be granted until May 1939 . The patent for his receiving tube had been granted the previous October.
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