The first field-effect transistor (FET) manufactured in the USSR was the junction field-effect transistor (JFET), which was developed in the 1950s. While the exact date and details of the first Soviet FET are not well-documented in the provided search results, it is known that the USSR made significant advancements in semiconductor technology during this period, following global trends in FET development.
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Date: 2024-10-14 10:44 (UTC)