The name „Toshiba” originates from the combination of two Japanese words: „Tokyo” and „Shibaura”. The company’s official name was Tokyo Shibaura Electric K.K., which later shortened to Toshiba Corporation.

The Toshiba GT-840S was popular not only among home users but also widely used in professional environments due to its excellent sound quality and reliability. This model was particularly favored by enthusiasts of vintage audio equipment for its authentic sound. The device was transistorized, making it portable like a suitcase. Its uniqueness lies in the developers’ implementation of „wireless sound transmission” on this recorder, where the sound travels through metal hinges that support speakers on both sides of the device