Discussion on "Public address systems" before the Devon and Cornwall Sub-Centre, at Plymouth, 23rd April, 1942
Volume :
89
Issue :
7
fYear :
1942
fDate :
9/1/1942 12:00:00 AM
Firstpage :
138
Journal_Title :
Journal of the Institution of Electrical Engineers - Part III: Communication Engineering, including the Proceedings of the Wireless Section of the Institution
