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Tuners
Starting from radio like models, Sansui produced variety of tube receivers in its early years. In the late days of tube era, Sansui perfected the tube tuner technology. The tuner sections of late tube receivers, such as 500A and 1000A, were extremely sensitive and powerful even compared with today's standard. Even so, Sansui introduced very few standalone tuners in those days. This was all changed after Sansui started producing separated stereo systems.
Starting from TU-70 Tube Tuner, Sansui introduced matching series of tuners in correspondence with its integrated amplifier series. For example, TU-70 to AU-70, TU-999 to AU-999, TU-9500 to AU-9500, etc. After the introduction of mighty TU-9900 in 1975, Sansui reached the highest water mark of analog tuner technology with TU-X1 in 1979. The corresponding integrated amplifier was another greatest in that era, AU-X1.
This tradition continued into even many generations of Alpha Series in the Japan domestic market; however, at the global level, Sansui retreated from the market rather very quickly. After TU-G99X Series in 1984, TU-X901 Series in the late 1980's seems the last tuners introduced in the international market.
TU-70 (1964)
TU-907 Series (1976 - 1980) - (Japanese Market)
TU-S Series (1980 - 1984)
TU-D99X Series (1984)
TU-X901 Series (1987)
TU-Alpha907 Series (1987 to 1990's) - (Japanese Market)