View Single Post
  #3  
Old 10-14-2002, 06:49 PM
Arthur Dalton Arthur Dalton is offline
Registered User
 
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,777
The RO # is a production code on the insulator.
The type # is stamped on the side of the metal base hex...
Reply With Quote