Abstracts of Bell System Technical Papers* 

 Not Published in this Journal 



Anderson, J. R/ 



Electrical Delay Lines for Digital Computer Applications, I.R.E., 

 Trans. P.G.E.C., 2, pp. 5-13, June, 1953. 



A survey of existing lumped parameter and distributed parameter delay lines 

 has shown that their maximum storage capacity is about 23 pulses and 15 

 pulses respectively regardless of total delay time. An analysis of pulse trans- 

 mission through distributed delay Unes indicates that dissipation in the in- 

 ductive elements is the chief factor limiting storage capacity. A method is 

 proposed for decreasing this dissipation through the use of high Q nickel zinc 

 ferrites around straight conductors for inductive elements. 



Armstrong, C. A.^ 



Communications for Civil Defense, A.I.E.E., Trans., Commun. & 

 Electronics, 7, pp. 315-326, July, 1953. 



On the Band Width of Vowel Formants, Letter to the Editor, J. 

 Acoust. Soc. Am., 25, pp. 791-792, July, 1953. 



Measurements were made on a sample of vowel utterances, by male talkers, 

 of the band widths of the first three formants. It was found that the band 



* Certain of these papers are available as Bell System Monographs and may be 

 obtained on request to the Publication Department, Bell Telephone Laboratories, 

 Inc., 463 West Street, New York 14, N. Y. For papers available in this form, the 

 monograph number is given in parentheses following the date of publication, and 

 this number should be given in all requests. 



1 Bell Telephone Laboratories. 



2 American Telephone and Telegraph Company. 



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