Tektronix 2440 Digital Oscilloscope User & Operators Reference Guide Manual 1988

Tektronix / Colorado Data Systems 1991 Information and Ordering Guide (Catalog).

Tektronix 2440 Digital Oscilloscope User Reference Guide 070-6600-00 Nov 1988

Tektronix Products Catalogs 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999

Tektronix 1991 Information & Ordering Guide

Tektronix P6451 Data Acquisition Probe Instructions and Date acquisition kit

Tektronix 070-6600-00 2440 Digital Oscilloscope User Reference Guide 1987

Original Tektronix Instruction Manual for the 834 Data Comm Tester