COLD CATHODE TUBES FOR AUDIO FREQUENCY SIGNAL^ 1301 



sion circuits can be satisfied without sacrificing switching characteristics. 

 Cold cathode glow discharge tubes are, therefore, a potentially useful 

 electronic switch for use in series with voice frequency transmission 

 circuits. 



ACKNOWLEDGMENT 



The authors wish to acknowledge the contributions of F. T. Andrews 

 in analyzing and measuring the amplifier performance of negative resis- 

 tance gas tube diodes. 



REFERENCES 



1. Ingram, S. B., Elec. Eng. (A.I.E.E. Transactions), 68, pp. 342-346, 1939. 



2. Depp, W. A., and W. H. T. Holden, Elec. Mfg., 44, pp. 92-97, 1949. 



3. Druyvesteyn, M. J. and F. M. Penning, Revs. Mod. Phys., 12, pp. 87-174, 1940. 



