[ARC5] T-30 throat mic.

[Richard Knoppow]

----- Original Message ----- 
From: "DSP3" <jeepp at comcast.net>
Cc: <arc5 at mailman.qth.net>
Sent: Thursday, January 15, 2015 12:38 PM
Subject: Re: [ARC5] T-30 throat mic.


> 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
>>>
    6 across the page is No.6   This site is a treasure and 
is expanding slowly. For instance, the collection of the 
Record is now almost complete and continuous.  The Bell 
System Technical Journal is available directly from the 
Alcatel site, a google search fill find it. I hope you have 
a high speed line because you can spend many happy hours 
downloading stuff. I have a very long standing interest in 
the history of broadcasting and have found the answers to 
many puzzles in the trade journals at this site.
    Another place to look for obscure journals (and old 
radio programs) is http://www.archive.org  (watch out for 
archive.com, its something else entirely)  You must 
sometimes be skilful in writing the search string for this 
site.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com