EICO 667 Tube Tester Construction Steps and Diagrams manuals, reprint.
digitally copied and enhanced manual for the EICO 667 dynamic conductance
tube and transistor tester. They have been copied from originals and
are clear, clean, and easy to read. They are printed on
premium 24# paper with heavy covers and bound together with a plastic comb. No more
struggling with unreadable photocopies!
Please see my other offerings for the
operating manual with tube data or a combination of all my EICO 667