Exhibit 23.5

[MORGAN STANLEY LOGO]

                  Consent of Morgan Stanley & Co. Incorporated

We hereby consent to the use in the Registration Statement of Tektronix on Form
S-4 and in the Joint Proxy Statement/Prospectus of Tektronix and Inet
Technologies, which is part of the Registration Statement, of our opinion dated
June 29, 2004 appearing as Annex B to such Joint Proxy Statement/Prospectus,
and to the description of such opinion and to the references to our name
contained therein under the heading "Summary," "The Merger - Background of the
Merger," "The Merger - Recommendation of the Inet Board; Reasons for the
Merger" and "The Merger - Opinion of Morgan Stanley." In giving the foregoing
consent, we do not admit that we come within the category of persons whose
consent is required under Section 7 of the Securities Act of 1993, as amended
(the "Securities Act"), or the rules and regulations promulgated thereunder,
nor do we admit that we are experts with respect to any part of such
Registration Statement within the meaning of the term "experts" as used in the
Securities Act or the rules and regulations promulgated thereunder.


                                             MORGAN STANLEY & CO. INCORPORATED


                                             By:  /s/ Anand Balakrishna
                                                  ---------------------------
                                                  Anand Balakrishna
                                                  Vice President


New York, New York
August 26, 2004