Transmitting portion of original television experimental apparatus, created and used by John Logie Baird, with a dummy head of "Stookie / Stooky Bill". 1925-1926.
This original Television apparatus was made of 16 lenses fitted in two half-spirals on a cardboard disc cut from a hat box. This was connected to a large motor mounted on an old tea chest which turned the disc. As the disc rotated, each of the lenses scanned a different part of the subject and focused light into Baird's secret photosensitive cell, where it was turned into an electrical signal which could be sent to a receiver.
Receiving equipment had a similar disc and showed small but recognisable images of human faces with 32 lines of resolution on a ground glass screen. The light was provided by a neon tube which shone through the spinning receiver disc onto the glass.
John L Baird succeeded in transmitting the silhouette in 1923 and the full recognisable image in 1925. During the experiment, a dummy head called ‘Stooky Bill’ was used as the apparatus would become too hot for human.
- Radio Communication
- Object Number:
- aluminium (metal), cardboard, electrical components, glass, hair, paint, plaster of Paris, wood (unidentified)
overall (estimate): 335 mm x 780 mm x 655 mm,
- tools and equipment
- John Logie Baird
- Permanent collection
Cite this page
We encourage the use and reuse of our collection data.
Data in the title, made, maker and details fields are released under Creative Commons Zero
Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence
Download catalogue entry as json
Download manifest IIIF
Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.