Replacement Signal Light Bulbs

[NW Mailing List]

Dave,
 
Checking the GE Lamp Products Catalog, the only thing I can find close to  
what you describe is a # 18S11/1SC.  This is a single contact bayonet  base 
(SC), 18 watts and rated at 10 volts.  It's listed usage is  "Railway Signal 
Light - Clear"
 
Hope this helps.
 
Tom Bosquet
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