The Sams index say the schematic for that set is a 321-11
I don't have one but maybe someone here will.
You can also go to the Sams Web Site and order a PDF scan of it.
http://www.samswebsite.com/photofact...&Search=Search
It's $7.00 and usually takes a few days for them to scan and E-mail it.
You can also probably get an original from John Kendall for $7.99 shipped at
http://www.vintage-electronics.com/tubes.htm