Washington, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


         Date of Report (Date of earliest event reported): July 7, 2003

                                VICOR CORPORATION
               (Exact name of Registrant as specified in charter)

    Delaware                         0-18277                  04-2742817
-------------------           ------------------------      ----------------
(State or other jurisdiction  (Commission file number)     (IRS employer
of incorporation)                                           identification no.)

                 25 Frontage Road, Andover, Massachusetts 01810
               (Address of principal executive offices) (Zip Code)

                                 (978) 470-2900
              (Registrant's telephone number, including area code)

   (Former name, former address and former fiscal year, if changed since last

Item 7.  Exhibits.

(c) Exhibits. The following exhibit is being furnished herewith:

Number   Title
------   -----
99.1     Vicor Corporation's press release dated July 7, 2003.

Item 9.  Regulation FD Disclosure

The Company is furnishing the information included as Exhibit 99.1 to this
report pursuant to Regulation FD. This information is being furnished pursuant
to Item 9 of this Current Report on Form 8-K and shall not be deemed to be
"filed" for the purposes of Section 18 of the Securities Exchange Act of 1934,
as amended, or otherwise subject to the liabilities of that section and will not
be incorporated by reference into any registration statement filed by the
Company under the Securities Act of 1933, as amended, unless specifically
identified therein as being incorporated therein by reference. This report will
not be deemed an admission as to the materiality of any information in the
report that is required to be disclosed solely by Regulation FD.

On July 7, 2003, Vicor Corporation issued a press release regarding the V I
Chip. The full text of that press release is attached as Exhibit 99.1 hereto
and incorporated by reference herein.

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         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                   VICOR CORPORATION

Dated: July 7, 2003                    By:  /s/ Mark A. Glazer
                                     Name:      Mark A. Glazer
                                    Title:      Chief Financial Officer


                                  EXHIBIT INDEX

Number               Title
------               -----

99.1                 Vicor Corporation's press release dated July 7, 2003.