UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                         -------------------------------


                                    FORM 8-K

                                 CURRENT REPORT

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

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       Date of Report (Date of earliest event reported): November 12, 2004
                                                         -----------------


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


           Delaware                   0-18277                  04-2742817
- ------------------------------    --------------           ---------------------
 (State or Other Jurisdiction      (Commission                (IRS Employer
       of Incorporation)            File Number)            Identification No.)


            25 Frontage Road, Andover, Massachusetts    01810
            --------------------------------------------------
            (Address of Principal Executive Offices) (Zip Code)


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


Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

     |_| Written communications pursuant to Rule 425 under the Securities Act
         (17 CFR 230.425)

     |_| Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17
         CFR 240.14a-12)

     |_| Pre-commencement communications pursuant to Rule 14d-2(b) under the
         Exchange Act (17 CFR 240.14d-2(b))

     |_| Pre-commencement communications pursuant to Rule 13e-4(c) under the
         Exchange Act (17 CFR 240.13e-4(c))


Item 8.01. Other Events. On November 12, 2004, Vicor Corporation issued a press release. The full text of that press release is attached as Exhibit 99.1 hereto and incorporated by reference herein. Item 9.01. Financial Statements and Exhibits. (c) Exhibits. Exhibit No. Description ----------- ----------- *99.1 Vicor Corporation's Press Release dated November 12, 2004. - -------------- * Filed herewith.

SIGNATURES 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 Date: November 12, 2004 By: /s/ Mark A. Glazer ------------------ Mark A. Glazer Chief Financial Officer

EXHIBIT INDEX Exhibit No. Description ----------- ----------- *99.1 Vicor Corporation's Press Release dated November 12, 2004. - -------------- * Filed herewith.

                                                                    Exhibit 99.1

Vicor Introduces A New Family of Quarter-Brick DC-DC Converters; ''VICBricks''
Utilize a PRM-VTM Chip-set in a Standard Quarter-Brick Package

    ANDOVER, Mass.--(BUSINESS WIRE)--Nov. 12, 2004--Vicor Corporation
(NASDAQ: VICR) announced its first family of VICBricks, high
performance DC-DC converters only a quarter-inch high that conform to
industry-standard quarter-brick footprint and pin outs. VICBricks
feature a V-I Chip-set, a Pre-Regulator Module (PRM) and a Voltage
Transformation Module (VTM), surface mounted on a 1/4-brick interposer
board. Fitting comfortably within the volume of the 1/4-brick format,
the VICBrick's V-I Chip-set achieves unprecedented performance in
power density, efficiency, transient responsiveness, low noise and
cost.
    The VICBrick lets users begin to take advantage of V-I Chips while
using the established through-hole DC-DC converter 1/4-brick format.
This is a logical step to deploying the PRM/VTM Chip-set as SMD
devices directly on the board, either next to each other or with the
PRM factorized away from the prime real estate at the point-of-load.
In that next step, OEMs can take full advantage of the flexibility,
density, efficiency, speed and cost-effectiveness of V-I Chips to
enable superior products.
    The D048C series of VICBricks operate from an input voltage of
36-75 Vdc and meet the basic insulation requirements of 2,250 Vdc
input to output. The initial standard VICBrick outputs include 1.0,
1.2, 1.5 and 1.8 V at 80 A, 2.5 V at 60 A, 3.0 and 3.3 V at 45 A, and
5 V at 30 A. Output voltages can be easily trimmed up or down over a
wide range. The 1.0 and 1.2 V units are rated at 100 A for up to 100
milliseconds. Double output pins are used for output currents over 50
A.
    Full load efficiencies range from 83% at 1.0 V to 93% at 5.0 V and
operation is specified for up to 100 deg. C case temperature. Even
with the speed limitations of the 1/4-brick format - interposer
interconnect traces and pins that add impedance between the VTM and
the load - the response of the VICBrick to a 50% step change in load
is less than 100 microseconds. PRMs and VTMs may be surface mounted
directly to system boards to support higher bandwidth applications
with a total DC-DC converter current density of up to 50 A/sq. in. and
with a mounting height of only 0.25 in.
    Pricing for the VICBricks is only $70.00 at 1,000 pieces. Pricing
for the PRM/VTM SMD Chip-set is $60, also at 1,000 pieces. Production
quantities are 8-10 weeks. For VICBrick data sheets and additional
information on V-I Chips and Factorized Power Architecture, please
visit the Vicor website at www.vicorpower.com. To order, contact Vicor
Express at 800-735-6200 or e-mail vicorexp@vicr.com.

    This press release contains certain forward-looking statements as
that term is defined in the Private Securities Litigation Reform Act
of 1995. You can identify these statements by our use of the words
"may," "will," "would," "should," "plans," "expects," "anticipates,"
"believes," "is designed to," "continue," "estimate," "project,"
"intend," and similar expressions. These forward-looking statements
involve risks and uncertainties that could cause actual results to
differ materially from those projected or anticipated. These risks and
uncertainties include our ability to develop new products
cost-effectively and our ability to decrease manufacturing costs, as
well as those risks and uncertainties identified in the Company's
Annual Report on Form 10-K. The risk factors contained in the Annual
Report on Form 10-K may not be exhaustive. Therefore, the information
contained in that Form 10-K should be read together with other reports
and documents that the Company files with the SEC from time to time,
which may supplement, modify, supersede or update those risk factors.

    CONTACT: Vicor Corporation
             Technical Contact:
             Robert Marchetti, 978-749-3511
             Senior Product Marketing Manager
             bmarchetti@vicr.com
             or
             Editorial Contact:
             Iris Kimber, 978-749-3396
             Strategic Marketing Manager
             ikimber@vicr.com