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jimTN · 09-04-2018, 06:35 PM

I have been rummaging thru the net and from what I have found, the R stands for retarded time. There was a A an d R cam. Hopefully ,someone will chime in here with some actual info.

09-04-2018, 06:35 PM	#3
jimTN Senior Member Join Date: May 2010 Location: Powell, TN Posts: 2,509	Re: Winfield SU 1R N I have been rummaging thru the net and from what I have found, the R stands for retarded time. There was a A an d R cam. Hopefully ,someone will chime in here with some actual info.