My 465 SN is B175976.
I am looking at a manual marked "tek-070-1330-00" (236 pages, with yellow addendum pages added in the back), as well as a manual for later version 465's (070-1861-00, B250000 & up, says Rev B, June 1975, 291 pages).
I think the first is the correct one, but it is more limiting (for instance, no trouble shooting flowchart).
