![]() ![]() The world's first transistor radio had gone on the market in the U.S. While they were thus occupied, the Totsuko people heard discouraging news. Ibuka requested a smaller component with a good performance. For exampl e, Mitsumi Denki made the small variable condensers used in battery-operated vacuum tube radios. Ibuka's team went around to individual component manufacturers and persuaded them to make parts smaller. ![]() Portable battery-powered radios which used vacuum tubes already existed, though they were on the large side. Ibuka and his team were to have many headaches before they were through. Transistor radios could of course be portable, but this would mean adapting many other parts and employing printed circuit boards. The market was well-supplied with vacuum tube radios, and there would have been no point in simply duplicating what they could do. Ibuka promptly agreed, and from then on transistors were numbered with the suffix "seki." Diodes were not placed in this category, however, to avoid having them fall under some future commodity tax. But Ibaragi favored using the word "seki" (stone) as was done with clocks. After giving it some thought, Kasahara suggested they take the latter part of the word "kessho" (crystal), and combine it with numbers, i.e., rokusho for six-transistor, nanasho for seven-transistor, etc. Ibuka was asking Kasahara's advice on what term to use for the new transistor. ![]() On the day, Ibuka, Kasahara, and Ibaragi of Mita Musen consulted with each other in a corner of the banquet room. In October, Japan's first transistor and a germanium diode were announced to a gathering at the Tokyo Kaikan. By June, the month that the Sendai plant started up, the transistor team that was proving such a strain on the company's finances had progressed and started to build a transistor radio prototype using both point-contact and junction-type transistors. ![]()
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