Cary CAD 50sl

Need any info on Cary CAD 50sl  or  CAD 50  mono blocks
Here's the owners manual version 1 on the CAD 50 monos from Cary's website.
For some reason they don't list the 50sl.
Thank you for the info. I have the cad 50sl  they have different tubes then the cad 50.
I called Cary Audio and they were no help!

Thanks     Bkooz