[GreenKeys] Another Interesting e-Bay Item

Jeff Seidel [email protected]
Mon, 07 Jul 2003 18:01:16 -0400


Hi all,

I will have to dig thru my US&S Archives (photos and development sheets) 
and see if I can come up with an answer.  US&S was big on doing 
everything they could on carrier.  Perhaps they used the same pair to 
control both time code equipment and teletype.  I can definitely 
Identify the old tube type carrier equipment in the photo and what 
appears to be 506 Field Line Code Storage Units.

If  I find anything I will report back.

Have a great week
Jeff Seidel



Sam Hallas wrote:

> Paul Wills wrote:
>
>> It sure looks like railroad stuff to me.  Perhaps it's a 
>> demonstration of a time code centralized traffic control system 
>> designed to work on a carrier frequency.
>>
>> John Burch wrote:
>>
>>> OK Teletype historians - git out yer magnifying glasses!
>>> (Interesting old historical photo, but not mine.)
>>>
>>> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3232370952
>>>
> Yes, the signal heads and miniature lineside pole route give the game 
> away. Could it be to demonstrate multiple services over one pair of 
> wires using carrier techniques. Notice the telephone nearest the 
> camera and another one half way back on the equpment.
>
> Cheers,
>
> Sam
>
>
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