Here is a very interesting book “Tektronix 1720/1721 Vectorscope (SN B050000 and Up) Instruction Manual”. The book looks to be a reference-catalog for electrnic equipment. This is a neat book of every imaginable tidbit of set-up and engineering knowledge, lots of illustration, different products and techniques, advice, practices, ideas, data, and so much more. The book has parts lists and schematics.

Copyright 1995

Publisher: Tektronix

The book measures approx. 11 by 8 ½ inches. The binder is nice and clean. The spine end is good with some creasing and light wear. The boards and corners are nice with some minor denting and wear. The hinges and binding is tight and strong. The pages are bright and clean, book is nice.