Thanks, Kevin, I owe you.
Steve, while I was printing the Sams, I had the copy shop scan my prints of the Riders manual for model 600x. It's sixteen 11x17 pages -- nearly 32 megabytes. Rather than choke your Inbox, I uploaded it to this URL:
http://antiqueradio.org/art/temp/Fle...cModel600x.pdf
Let me know if that doesn't work for some reason.
Regards,
Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html