For sale is reprint Precision Apparatus Company Tube Tester model 10-40 Manual. 22 pages long, Manual comes with Part List and 11×17″ enlarged Circuit Diagram. 2 Page Supplementary Tube Chart 12-58 is included. Date on schematic is August 8th 1958.
If you purchased one of those testers from Ebay and it did not come with Manual, here it is. Looks like Manual was Mimeorgraphed as it was printed one sided. Font is smaller than usual but manual is clear and very readable.