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 :
66
Issue :
374
fYear :
1928
fDate :
2/1/1928 12:00:00 AM
Firstpage :
197
Lastpage :
199
Journal_Title :
Journal of the Institution of Electrical Engineers
