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NOVEMBER, 1926
LOOKING BACK OVER THIRTY YEARS
31
tinually getting wider, thus the radio transmission of photographs to a distance is already an accomplished fact and even now the practical solution of the great problem of television is seen to be possible in the near future.
Before concluding, I would like to send a respectful greeting to the numerous band of efficient scientists, seekers after the truth, and humble workers scattered all over the globe whose work has contributed to make possible the progress obtained; I wish once more to record with deep admiration and reverent affection the great figure of Augusto Righi who, with his genius and his indefatigable effort, did so much for the study of electric waves.
The clever and classical work on the Optics of Electrical Oscillations accomplished here at Bologna by Augusto Righi led to results which, from the walls of his laboratory, became the admiration of the students of physical sciences throughout the world.
COMPARISON IS ODIOUS, SO THEY SAY
Yet let us turn to page 39 of the May, 1926, Radio Broadcast, and see how Warner Bros, modern 250-watt portable outfit, 6 xbr, compares with the somewhat antiquated mobile affair illustrated above. Those of you who have seen 6 xbr on the road will be in an even better position to contrast, though it is hardly possible that the "puffing billy" depicted will ever be seen on Main Street again. It is a twenty-year old contraption used by Senatore Marconi in one of his first attempts at a portable field station. A cylinder of copper forms the antenna. To the extreme right stands
the Senatore
BEAM STATION EQUIPMENT "I was responsible for having caused the expenditure of hundreds of millions on long-wave stations. A certain courage was therefore necessary to say let us turn back." says Marconi with reference to the development of the short-wave beam station. The above picture shows the tube rectifier panels of the Bodmin, England, beam station
MARCONI S FIRST TRANSMITTER Y/as fashioned after the model in this picture. The apparatus includes the induction coil for obtaining a high voltage with a multiple coil spark gap, one side of which is connected to the antenna, which is in the form of a copper sheet slung, by means of insulators, between two posts. The other side of the spark gap is connected to ground