SECURITIES AND EXCHANGE COMMISSION
                           Washington, DC  20549

                               SCHEDULE 13G

                 Under the Securities Exchange Act of 1934


                             (Amendment No. 1)*


                            RadiSys Corporation
                  ______________________________________
                             (Name of Issuer)


                               Common Stock
                  ______________________________________
                      (Title of Class of Securities)


                                 750459109
                  ______________________________________
                              (CUSIP Number)


*The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect to
the subject class of securities, and for any subsequent
amendment containing information which would alter the disclosures
provided in a prior cover page.

The information required in the remainder of this cover page
shall not be deemed to be "filed" for the purpose of Section 18
of the Securities Exchange Act of 1934 ("Act") or otherwise
subject to the liabilities of that section of the Act but shall
be subject to all other provisions of the Act (however, see the
Notes).  



CUSIP NO.  750459109

1.   NAME OF REPORTING PERSON:
     
          TEKTRONIX DEVELOPMENT COMPANY


2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:

                                        (a)  /   /
                                        (b)  /   /

3.   SEC USE ONLY:


4.   CITIZENSHIP OR PLACE OF ORGANIZATION:

          OREGON


NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH:
     5.   SOLE VOTING POWER:
          915,651

     6.   SHARED VOTING POWER:
          0

     7.   SOLE DISPOSITIVE POWER:
          915,651
     
     8.   SHARED DISPOSITIVE POWER:
          0


9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING 
     PERSON:

          915,651


10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES  
     CERTAIN SHARES:
                                        /  /

11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):

          12.4 PERCENT


12.  TYPE OF REPORTING PERSON:
          CO

                                     2


CUSIP NO.  750459109

1.   NAME OF REPORTING PERSON:

          TEKTRONIX, INC.  


2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:

                                        (a)  /   /
                                        (b)  /   /

3.   SEC USE ONLY:


4.   CITIZENSHIP OR PLACE OF ORGANIZATION:

          OREGON


NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH:
     5.   SOLE VOTING POWER:
          915,651
     
     6.   SHARED VOTING POWER:
          0

     7.   SOLE DISPOSITIVE POWER:
          915,651

     8.   SHARED DISPOSITIVE POWER:
          0


9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING  
     PERSON:

          915,651


10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES  
     CERTAIN SHARES:
                                        /  /

11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):

          12.4 PERCENT


12.  TYPE OF REPORTING PERSON:
          CO

                                     3


Tektronix, Inc., an Oregon corporation ("Tektronix"), owning 100
percent of the outstanding voting securities of Tektronix
Development Company, joins in this filing.

Item 1(a).     Name of Issuer:

                    RadiSys Corporation

Item 1(b).     Address of Issuer's Principal Executive Offices:

                    15025 S.W. Koll Parkway
                    Beaverton, OR  97006

Item 2(a).     Names of Persons Filing:

                    This Schedule 13G is filed on behalf of
                    Tektronix Development Company ("TDC") and
                    Tektronix.  TDC is a wholly-owned subsidiary
                    of Tektronix.

Item 2(b).     Address of Principal Business Office, or if none,
               Residence:
     
                    The principal business office of TDC is
                    26600 SW Parkway Avenue, Wilsonville, OR 
                    97070. The principal business office of 
                    Tektronix is 26600 SW Parkway Avenue, 
                    Wilsonville, OR  97070.

Item 2(c).     Citizenship:

                    TDC and Tektronix are corporations      
                    incorporated under the laws of Oregon.

Item 2(d).     Title of Class of Securities:

                    Common Stock

Item 2(e).     CUSIP Number: 

                    750459109

Item 3.        Type of Reporting Person:

                    NOT APPLICABLE

Item 4.        Ownership:

                    TDC is a wholly-owned subsidiary of     
                    Tektronix.  On December 31, 1996, TDC held
                    a total of 915,651 shares of the Issuer's
                    Common Stock which represented approximately
     
                                     4


                    12.4 percent of the class.  TDC (and
                    therefore Tektronix by virtue of its 100
                    percent ownership of TDC) has sole power to 
                    vote or to direct the vote and sole power to 
                    dispose or to direct the disposition of the 
                    915,651 shares of the Issuer's Common Stock.

Item 5.        Ownership of Five Percent or Less of a Class: 

                    NOT APPLICABLE

Item 6.        Ownership of More than Five Percent on Behalf of
               Another Person:
               
                    NOT APPLICABLE

Item 7.        Identification and Classification of the 
               Subsidiary Which Acquired the Security Being
               Reported on By the Parent Holding Company:
               
                    NOT APPLICABLE

Item 8.        Identification and Classification of Members of
               the Group:
                    
                    NOT APPLICABLE

Item 9.        Notice of Dissolution of Group:
          
                    NOT APPLICABLE

Item 10.       Certification:

                    NOT APPLICABLE

                           
                           SIGNATURE

               After reasonable inquiry and to the best of my
knowledge and belief, I certify that the information set forth 
in this agreement is true, complete and correct.

Date:  February 7, 1997


                              TEKTRONIX DEVELOPMENT COMPANY


                              By:    /s/ JOHN P. KARALIS
                                  _________________________
                                     John P. Karalis
                                     Chairman and President



                              TEKTRONIX, INC.


                              By:    /s/ JOHN P. KARALIS
                                   _________________________
                                       John P. Karalis
                                       Senior Vice President

                            5