SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
Under the Securities and Exchange Act of 1934
(Amendment No. 2 )
TERADYNE, INC.
(Name of Issuer)
Common
(Title of Class of Securities)
Date of Event Which Requires Filing of this Statement
October 14, 1998
Check the appropriate box to designate the rule
pursuant to which this Schedule is filed
X Rule 13d-1(b)
880770102
(CUSIP NUMBER)
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1) Name of Reporting Pioneering Management
Person Corporation
IRS Identification 13-1961193
No. of Above
2) Check the Appropriate Box (a)
of A Member of Group
(See Instructions) (b) X
3) SEC Use Only
4) Citizenship of Place of
Organization Delaware
Number of (5) Sole Voting Power 340000
Shares
Beneficially Owned (6) Shared Voting 0
Power
by Each Reporting
Person With (7) Sole Dispositive 340000
Power
(8) Shared 0
Dispositive
Power
9) Aggregate Amount Beneficially 340000
Owned by Each
Reporting Person
10 Check if the aggregate
Amount in Row (9) Exclude Certain
Shares (See
Instructions)
11 Percent of Class Represented
By Amount in Row 9. 0.41%
12) Type of Reporting
Person (See Instructions) IA
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Item 1(a) Name of Issuer.
TERADYNE, INC.
Item 1(b) Address of Issuer's Principal Executive Office's
Mr.Jeffrey R. HotchkissChief Financial Officer
TERADYNE, INC.
321 Harrison Avenue
Boston, MA 02118
Item 2(a) Name of Person Filing.
Pioneering Management Corporation
Item 2(b) Address of Principal Business Office:
60 State Street, Boston, MA 02109
Item 2(c) Citizenship:
State Of Delaware - Pioneering Management Corporation.
Item 2(d) Title of Class of Securities.
Common Stock
Item 2(e) CUSIP Number.
880770102
Item 3 The person filing this statement pursuant to Rule 13-1(b) or
13d-2 is:
(d) Investment Adviser registered under Section 203 of
the Investment Advisers Act of 1940.
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Item 4. Ownership
(a) Amount Beneficially Owned 340000
(b) Percent of Class 0.41%
(c) Number of shares as to which such person has
(i) sole power to vote or to direct the vote 340000
(ii) shared power to vote or to direct vote 0
(iii) sole power to dispose or to direct disposition of 340000
(iv) shared power to dispose or to direct disposition 0
Item 5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more that
five percent of the class of securities, check here: X
Item 6. Ownership of More than Five Percent on Behalf of Another Person.
Inapplicable.
Item 7. Identification and Classification of the Subsidiary Which Acquired
the Security Being Reported On By the Parent Holding Company.
Inapplicable.
Item 8. Identification and Classification of Members of the Group.
Inapplicable.
Item 9. Notice of Dissolution of the Group.
Inapplicable.
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Item 10. Certification.
By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were acquired in the ordinary course of
business and were not acquired for the purpose of and do not have the effect of
changing or influencing the control of the issuer of such securities and were
not acquired in connection with or as a participant in any transactions having
such purposes or effect.
After reasonable inquiry and to the best of my knowledge and believe, I
certify that the information set forth in this statement is true, complete and
correct.
October 15, 1998
Date
/s/Robert P. Nault
Signature
Robert P. Nault
Assistant Secretary
Type Name and Title
