The whole scale of the history, technology and Rediffusion's development of induction loop systems was internally published in an aide-mémoire for the then global Rediffusion/ British Electri VDO>https://youtu.be/5N54ConcZAw
Info About Induction Loop System
4/
5
Oleh
Chamnan Khmer Angkor
Note: Only a member of this blog may post a comment.