Here is a very interesting book “Tektronix Type 535 545 Oscilloscope Instruction Service Manual”. The book looks to be a reference-catalog for electronic 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.

Publisher: Tektronix

The book measures approx. 10 by 7 inches. The book is nice and clean. The spine end is good with some creasing and light wear, the spiral have some wear on back cover, needs to be remounted 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, sparse notes and marks, some light edge wear, book is nice.