Dictaphone

A dictaphone was a device which recorded sound.

Jamie McCrimmon was fascinated by gadgets such as Polly's secretarial dictaphone, on which she kept his recordings for many years after their travels. (AUDIO: The Forbidden Time)

In 1969, the Tenth Doctor recorded an alien signal at Mission Control with a dictaphone, and then was arrested. After the Doctor escaped several days later, he used the TARDIS to translate the recording into a visualisation of the sounds so he could communicate with the aliens. (PROSE: Blue Moon)

During her time with the Third Doctor, Sarah Jane Smith was gifted a dictaphone which was made in Taiwan in 1997: her future. (AUDIO: The Children of the Future)

Ben Anderson, a travel writer, used a dictaphone while sailing on the Neptune. (PROSE: Dateline to Deadline)