John Logie Baird article about his early television apparatus and the results they gave him.
Date: Published in 1924.
Publication: 'The Wireless World and Radio Review', Volume 14, Pages 153-155
This article by John Logie Baird includes details of television reception tests. It includes a black-and-white illustration of Baird with the receiving apparatus.
In it Baird describes how early transmissions worked, including the use of selenium.
The article is published on pages 153-155 of volume 14 of the journal, dated 7 May 1924.