The Sanyo Plus T-20 is a tuner model that was part of the Plus Series produced by Sanyo from 1979 to 1982. This model features a sleek silver finish and was manufactured in Japan. At its release, the original price was approximately 598 DM. The Sanyo Plus T-20 is noted for its identical construction to the Siemens RH 666 tuner, indicating a shared design philosophy between the two brands. The Plus Series also includes other components such as the Sanyo Plus C-20 preamplifier and the Sanyo Plus P-20 power amplifier, demonstrating a comprehensive system approach. The Plus T-20 was designed to work seamlessly within this series, contributing to an integrated audio experience.