8-K

                       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

         Date of Report (Date of earliest event reported): April 8, 2004

                                    HEI, Inc.
               (Exact name of Registrant as Specified in Charter)

         Minnesota                        0-10078                 41-0944876
- ----------------------------           ------------          -------------------
(State or Other Jurisdiction           (Commission              (IRS Employer
     of Incorporation)                 File Number)          Identification No.)

         PO Box 5000, 1495 Steiger Lake Lane, Victoria, Minnesota 55386
         --------------------------------------------------------------
          (Address of Principal Executive Offices, including Zip Code)

                                 (952) 443-2500
              ----------------------------------------------------
              (Registrant's telephone number, including area code)

                                       N/A
          -------------------------------------------------------------
          (Former name or former address, if changed since last report)



Item 5. OTHER EVENTS.

      On April 8, 2004,  HEI, Inc. ("the  Company")  announced that it will hold
its quarterly  conference  call to discuss the  financial  results of the second
quarter of fiscal year 2004 on Tuesday,  April 13, 2004 at 4:00 pm Eastern  Time
(3:00 pm Central Time).

A copy of the press release is attached as Exhibit 99.1 and incorporated  herein
by reference.

Item 7. FINANCIAL STATEMENTS AND EXHIBITS.

      (a)   Financial Statements.

            Not Applicable.

      (b)   Pro Forma Financial Information.

            Not Applicable.

      (c)   Exhibits:

            99.1  Press  Release  dated April 8, 2004,  regarding  the company's
                  holding its quarterly conference call to discuss the financial
                  results of the second  quarter of fiscal year 2004 on Tuesday,
                  April 13, 2004 at 4:00 pm Eastern Time (3:00 pm Central Time).

                                   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.

                                            HEI, INC.

Dated: April 8, 2004                        By  /s/ Douglas Nesbit
                                                --------------------------------
                                                Douglas Nesbit
                                                Its: Chief Financial Officer



                                  Exhibit Index

99.1  Press  Release dated April 8, 2004,  regarding  the company's  holding its
      quarterly  conference call to discuss the financial  results of the second
      quarter of fiscal year 2004 on Tuesday,  April 13, 2004 at 4:00 pm Eastern
      Time (3:00 pm Central Time).

EX-99.1

                                                                    Exhibit 99.1

              HEI, Inc. Announces Second Quarter Conference Call

    MINNEAPOLIS, April 8 /PRNewswire-FirstCall/ -- HEI, Inc. (Nasdaq: HEII)
( www.heii.com ) will hold its quarterly conference call to discuss the
financial results of the second quarter of fiscal year 2004 on Tuesday,
April 13, 2004 at 4:00 pm Eastern Time (3:00 pm Central Time).

    This call is being web cast and is also accessible via telephone.  To
access the listen-only webcast, visit http://www.actioncast.acttel.com .  The
conference call can be accessed via telephone by dialing 1-800-218-8862
(outside the US, dial 303-262-2211).  Specify conference reservation number
576607.

    Replays of the conference call will be available April 13, 2004 at 5 pm
Central Time through midnight May 13, 2004, by calling 1-800-405-2236 (outside
the US, dial 303-590-3000).  Specify conference reservation number 576607.

    Information for accessing the conference call is also available on the
HEI's web site at www.heii.com .

    HEI, Inc. designs, develops and manufactures microelectronics, subsystems,
systems, connectivity and software solutions for OEMs engaged in the medical
equipment and medical device, hearing, communications and RFID industries.
HEI provides its customers with a single point of contact that can take an
idea from inception to a fully functional, cost effective and
manufacturability product utilizing innovative design solutions and by the
application of state-of-the-art materials, processes and manufacturing
capabilities.

     Investor Relations &                 PO Box 5000, 1495 Steiger Lake Lane,
      Microelectronics Operations          Victoria, MN  55386
     Advanced Medical Operations          4801 North 63rd Street,
                                           Boulder CO  80301
     High Density                         610 South Rockford Drive,
      Interconnect Operations              Tempe, AZ  85281
     RF Identification and                1546 Lake Drive West,
      Smart Card Operations                Chanhassen, MN  55317


    FORWARD-LOOKING INFORMATION

    Information in this news release, which is not historical, includes
forward-looking statements made pursuant to the safe harbor provisions of the
Private Securities Litigation Reform Act of 1995.  Statements contained in
this press release, including the implementation of business strategies,
including a stronger sales emphasis; growth of specific markets; improved
results, profitability, cash flow, margins, and revenues; and estimated HEI
revenues, cash flow, expenses and profits, are forward-looking statements.
All of such forward-looking statements involve risks and uncertainties
including, without limitation, continuing adverse business and market
conditions, the ability of HEI to secure and satisfy customers, the
availability and cost of materials from HEI's suppliers, HEI's ability to
satisfy financial or other obligations or covenants set forth in its banking
agreements, adverse competitive developments, change in or cancellation of
customer requirements, the integration of the Advanced Medical Operations,
collection of outstanding debt, HEI's ability to succeed on the merits and
defend against litigation, and other risks detailed from time to time in HEI's
SEC filings.  HEI undertakes no obligation to update these statements to
reflect ensuing events or circumstances, or subsequent actual results.

SOURCE  HEI, Inc.
    -0-                             04/08/2004
    /CONTACT:  Mack V. Traynor III, CEO, or Douglas J. Nesbit, CFO, both of
HEI, Inc., +1-952-443-2500/
    /Web site:  http://www.heii.com /
    (HEII)

CO:  HEI, Inc.
ST:  Minnesota
IN:  CPR HRD SEM STW MTC NET
SU:  CCA MAV