REFERENCES 



^ Dickinson, C. J. Electrophysiological technique Electron. Enging. Monog. p. 98 

 ^ Kay, R. H. A time-marker for electrophysiology Electron. Enging. 28 (1 956) 452 

 ' Attew, J. E. Decade multi-vibrator design Wireless World 5% (1952) 114 

 ^ ScROGGiE, M. G. Audio signal generator Wireless World 55 (1949) 331 

 ^ SiNFiELD, L. F. Extended range l.f. oscillator Wireless World 60 (1954) 596 

 i» Raistrick, W. G. Phase-shift oscillators Wireless World 59 (1953) 409 

 " Morton, A. Q. Oscillator filter unit Wireless World 59 (1953) 129 



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