Baird disc model televisor (1930) and Sterling broadcast receiver type R.1615 (1923)

Sterling 4-Valve Broadcast Receiver Type R.1593.

Broadcast receiver with early BBC logo transfer. The four valves of this receiver helped to boost the radio signal to amplify the sound for loudspeakers, although this set was acquired with headphones (1959-162/2).

The set was acquired with a Baird Televisor for displaying early television images from an experimental 30 line service begun in 1929. The televisor only displayed the image signal so a separate receiver was required for sound. Initially the image and sound signals were transmitted separately at 2 minute intervals. From 1930 the signals were combined for synchronised television broadcast, although in this set-up the hardware remained independent.

Headphones used for radio, acquired with Sterling Broadcast Receiver Type R.1593 (1959-162/1)

The Sterling receiver used four valves to boost the radio signal which enabled greater amplification of sound. Audio ports were provided for loudspeakers or headphones for private listening.

The set was acquired with a Baird Televisor for displaying early television images from an experimental 30 line service begun in 1929. The televisor only displayed the image signal so a separate receiver was required for sound. Initially the image and sound signals were transmitted separately at 2 minute intervals. From 1930 the signals were combined for synchronised television broadcast, although in this set-up the hardware remained independent.