[ARC5] T-30 throat mic.

[DSP3]

Looking at the reference below, can you all tell me which month to look 
at?  That is an awful lot of really interesting stuff that I'll have to 
peruse, but, again, which month I should go to for the T-30 reference.

Thanks

Jeep - K3HVG
>>     FWIW, I found a citation in "Acoustical Engineering" Harry F. 
>> Olson to a Bell Labs Record article in the edition for V.23, No.6, 
>> 1945 which covers a number of military acoustical devices including 
>> the throat mic. It may be found at;
>> http://americanradiohistory.com/Bell_Laboratories_Record_Issue_Key.htm
>>