UNITED STATES                         OMB APPROVAL
                SECURITIES AND EXCHANGE COMMISSION        ---------------------
                        Washington, D.C. 20549            OMB Number:  3235-0058
                                                          Expires:  May 31, 1997
                                                      Estimated average burden
                              FORM 12b-25             hours per response ...2.50
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                       NOTIFICATION OF LATE FILING     SEC FILE NUMBER
                                                            0-3319
(Check One):                                          -------------------------
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                                                       CUSIP NUMBER
                                                            24507310
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|X Form 10-K |_| Form 20-F |_| Form 11-K | | Form 10-Q |_| Form N-SAR

     For Period Ended: Twelve month Period Ended August 2, 1997
     [ ] Transition Report on Form 10-K
     [ ] Transition  Report on Form 20-F [ ] Transition  Report on Form 11-K [ ]
     Transition  Report on Form 10-Q [ ] Transition Report on Form N-SAR For the
     Transition Period Ended: _________________________________________

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  Read Instruction (on back page) Before Preparing Form. Please Print or Type.

         Nothing in this form shall be  construed  to imply that the  Commission
has verified any information contained herein.
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If the notification  relates to a portion of the filing checked above,  identify
the Item(s) to which the notification relates:

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PART I -- REGISTRANT INFORMATION

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Full Name of Registrant DEL GLOBAL TECHNOLOGIES CORP.
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Former Name if Applicable 
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Address of Principal Executive Office (Street and Number)
          ONE COMMERCE PARK
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City, State and Zip Code
          VALHALLA, NEW YORK, 10595
PART II -- RULES 12b-25(b) AND (c)

If the subject report could not be filed without  unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed. (Check box if appropriate)

        | (a) The reasons  described  in  reasonable  detail in Part III of this
          form could not be eliminated without unreasonable | effort or expense;
  |X|     | (b) The subject annual report, semi-annual report, transition report
          on Form 10-K, Form 20-F, Form 11-K or Form N-SAR,
        | or portion thereof,  will be filed on or before the fifteenth calendar
          day following the  prescribed  due date; or the
        | calendar day following the prescribed due date;  and
        | subject  quarterly  report of transition report on Form 10-Q,  or
          portion  thereof  will be filed on or before the fifth | calendar  day
        following  the  prescribed  due  date;  and  | |  (c)  The  accountant's
        statement or other exhibit required by
          Rule 12b-25(c) has been attached if applicable.

PART III -- NARRATIVE

State below in reasonable  detail the reasons why Forms 10-K,  20-F, 11-K, 10-Q,
N-SAR, or the transition  report or portion  thereof,  could not be filed within
the prescribed time period.

                                                (Attach Extra Sheets if Needed)
                                                                 SEC 1344 (6/94)







PART IV--OTHER INFORMATION

 
(1) Name and telephone number of person to contact in regard to this
    notification
    MICHAEL TABER, V.P. FINANCE & SECRETARY   (914)            686-3600
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                  (Name)                      (Area Code)    (Telephone Number)

(2) Have all other  periodic  reports  required under Section 13 or 15(d) of the
    Securities  Exchange Act of 1934 or Section 30 of the Investment Company Act
    of 1940 during the  preceding 12 months or for such shorter  period that the
    registrant was required to file such report(s) been filed?  If answer is no,
    identify report(s). |X| Yes |_| No
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(3) Is it anticipated that any significant  change in results of operations from
    the  corresponding  period for the last fiscal year will be reflected by the
    earnings statements to be included in the subject report or portion thereof?
    |_| Yes |X| No

    If so, attach an explanation of the anticipated change, both narratively and
    quantitatively,  and, if  appropriate,  state the  reasons why a  reasonable
    estimate of the results cannot be made.

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                          DEL GLOBAL TECHNOLOGIES CORP.
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                     (Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned
hereunto duly authorized.


Date: October 27, 1997                By: /s/Michael Taber
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                                        Michael Taber,
                                        Vice President Finance & Secretary,
                                        Chief Accounting Officer
INSTRUCTION: The form may be signed by an executive officer of the registrant or
by any other duly  authorized  representative.  The name and title of the person
signing  the form  shall  be typed or  printed  beneath  the  signature.  If the
statement is signed on behalf of the registrant by an authorized  representative
(other than an executive officer), evidence of the representative's authority to
sign on behalf of the registrant shall be filed with the form.

- ----------------------------------ATTENTION ------------------------------------
Intentional misstatements or omissions of fact constitute Federal Criminal
Violations (See 18 U.S.C. 1001).
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                           GENERAL INSTRUCTIONS

1.   This form is  required by Rule  12b-25 (17 CFR  240.12b-25)  of the General
     Rules and Regulations under the Securities Exchange Act of 1934.

2.  One signed  original and four  conformed  copies of this form and amendments
    thereto  must be  completed  and  filed  with the  Securities  and  Exchange
    Commission,  Washington,  D.C.  20549,  in  accordance  with Rule 0-3 of the
    General Rules and Regulations under the Act. The information contained in or
    filed with the form will be made a matter of public record in the Commission
    files.

3.  A manually  signed copy of the form and  amendments  thereto  shall be filed
    with each national  securities  exchange on which any class of securities of
    the registrant is registered.

4.  Amendments to the  notifications  must also be filed on form 12b-25 but need
    not restate information that has been correctly furnished. The form shall be
    clearly identified as an amended notification.

5.  Electronic  Filers.  This form shall not be used by electronic filers unable
    to timely file a report solely due to electronic difficulties. Filers unable
    to submit a report within the time period  prescribed due to difficulties in
    electronic  filing  should  comply  with  either  Rule  201 or  Rule  202 of
    Regulation  S-T  (ss.232.201  or ss.232.202 of this chapter) or apply for an
    adjustment  in  filing  date  pursuant  to  Rule  13(b)  of  Regulation  S-T
    (ss.232.13(b) of this chapter).



                              RIDER TO FORM 12b-25
                              --------------------

As a result of a delay in obtaining the necessary  financial  information needed
to meet the filing  requirements for Form 10-K, the registrant is unable to file
the Form 10-K by the required filing date of October 31, 1997.