[GreenKeys] Another Interesting e-Bay Item

[Paul Wills]

I was also looking at the glass cabinets full of small relays.  They 
look like the "counting chain" and common logic used with the railroad 
remote control equipment.  There appears to be designation labels near 
each piece of equipment that are similar to the one shown near the "TD."

Most interesting, indeed.  Hopefully Jeff Seidel will put in his two 
cents when he sees this.

PDW

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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