Discussion on ´Apparatus standards of telephonic transmission, and the technique of testing microphones and receivers´ before the North-Eastern Centre, at Newcastle, 28th November, 1927
Volume :
3
Issue :
7
fYear :
1928
fDate :
3/1/1928 12:00:00 AM
Firstpage :
61
Lastpage :
63
Journal_Title :
Institution of Electrical Engineers - Proceedings of the Wireless Section of the Institution