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"As It Was in the Beginning"
53
RECEIVING APPARATUS, MODEL IQO2
The coherer detector, decoherer, relays, sounder, tuning transformer, and tape recorder are shown on the large board. At the right is shown a contact type detector with telephone receivers. In this contact detector, steel balls floating on mercury were brought into contact with a strip of aluminum or oxidized iron. The contact pressure was varied by screwing a thumb screw in or out of the mercury. The phones used were the adjustable-magnets, watch-case type of StrombergCarlson phones, rewound with fine wire (36 or 40 B&S). Note the leveling screws on the coherer receiver board; not only were these necessary but the coherers had to be very carefully made, exhausted by a mercury pump and the circuits screened by a metal case as we screen circuits now. Taken in Denver, March, 1902
not located where there was a demand for the kind of service they could render. One of the main things they demonstrated was that wireless stations should be placed where there was a demand for what they could do, if wireless was to develop as an art. Also those three companies produced the first prominent wireless interference object lesson, when they intentionally and unintentionally interfered with each other in their efforts to each beat the other at reporting the yacht races.
About the time of these races, rumors started in the American Wireless Telephone and Telegraph Company that those who were working for. the American Company would get opportunities to become chief engineers of subsidiary companies. According to the story, the promoters of the American Company had formed that company as a parent company and had parcelled out the United States and its possessions to a number of subsidiary organizations. The understanding was that the parent company was to furnish patent protection and instruments for considerations, and trained men for the subsidiary groups to hire as chief engineers.
By the subsidiary arrangement, the Pacific Wireless Telephone and Telegraph Company and the Continental Wireless Telephone and Telegraph Company had the Western States, Pacific States, and Alaska. Practically, they were one company because the two companies had the same men for officers. They seemed to me to have a territory where wireless might be immediately useful. After a few weeks of talks, telegrams, and letters while 1 was supervising the building of a station at Barnegat, New Jersey, I joined to the Pacific and Continental Wireless Telephone and Telegraph Companies and went to their headquarters in Denver.
The parent company had not lived up to its agreement to supply instruments, and from what I had seen of the officers of the parent company I did not believe they would ever supply the apparatus; so 1 set out to build two sets of instruments for use between Catalina Island, California, and the mainland of California. Some of the officers of the Pacific and Continental companies wanted to put the stations at Denver and Golden, Colorado, where they would have been, simply, another