[Boatanchors] Fw: Parts

[Ken]

----- Original Message ----- 
From: "Ken" <n5cm at rtconline.com>
To: "LARRY D GODEK" <telegrapher at q.com>
Sent: Saturday, February 19, 2011 4:37 AM
Subject: Re: [Boatanchors] Parts


> Hi Larry,
>
> The 3105  crystal is (or was) the frequency the C.A.A., later 
> F.A.A.(Federal Aviation Administration) used for civil itinerant aircraft 
> to communicate
> with the control towers, etc. The second harmonic 6210 was also used.
> We monitored 3105 kcs at Moisant International Airport Control Tower where 
> I advanced to "Senior Controller" before I lost hearing in my left ear
> which caused loss of two functions of hearing. The brain tells us which 
> direction sound is arriving from but it must have binaural hearing, that 
> is, sterio
> hearing which means hearing in  two ears. Also, and more importantly, for 
> people in work such as air traffic control, loss of hearing in one ear
> brings on a condition of "not being able to separate voices". Here also 
> the brain needs sterio hearing to separate voices or a voice from other
> sounds. With hearing in both ears, the brain can concentrate on one 
> particular voice and "mentally" reject all others even though one or more 
> may be
> just as strong as the desired voice.
>
> Moisant International Airport served the city of New Orleans and was 
> located in my home town of Kenner about 12 miles from downtown New
> Orleans. The airport's name was changed to New Orleans International 
> Airport, then later, to Armstrong International Airport in honor of that 
> legend,
> Louis "Satch Mouth" Armstrong!
>
> I atribute the loss of hearing in my left ear to the previous career in 
> radiotelegraphy for government and commercial work. Take care,
>
> Ken   N5CM
>
> ----- Original Message ----- 
> From: "LARRY D GODEK" <telegrapher at q.com>
> To: <boatanchors at mailman.qth.net>
> Sent: Friday, February 18, 2011 6:27 PM
> Subject: [Boatanchors] Parts
>
>
>>
>> Digging around in one of my boxes of "junque" i found a couple of parts 
>> that sound interesting.  One is a Fixed Condenser Type 260 by the C.D. 
>> Tuska Co. Hartford, Conn..  Another is a "Formo-Densor Type J, MAX .0003 
>> and Min .000025
>>
>> A third one is a Harvey-Wells Electronics crystal for 3105 kc that has 
>> only one tab for connecting a wire or screw to.  Hmmmm.  Wonder which 
>> piece of avionics that came from.
>>
>> Larry
>> W0OGH
>