A signal Question for Ben et.al. (NW Mailing List)

[NW Mailing List]

/On 6/24/2013 2:13 PM, NW Mailing List wrote:
/

> /Jimmy,/

> /Now that the N&W guys have responded allow me to tell you what I 

> think it is. /

> /This is obviously shot on formerly Southern territory though I cannot 

> identify the exact spot of that last sequence with the signal. 

> Southern has used a lot of GRS Trakode which because of the huge 

> capacitors in the decoders would act just like this.  The fact that 

> these are positive signals does not mean they are home signals. These 

> are back to back headblock automatic signals in non-CTC territory.  

> It's the capacitors that are necessary for the operation that cause 

> this characteristic, and it's not really a problem.  Boilers and long 

> hoods have nothing to do with it, at least on Southern./

> /Trakode was being eliminated in favor of electronic track circuits 

> that do not have this characteristic.   With the advent of PTC 

> approaching, I expect the last of the Trakode to be gone in the next 

> couple years. /

> //

> /John Marbury/

> /Buford, GA/

/
/John,
     Thank you for the information.

Jimmy Lisle
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