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

                                 Date of Report

                                  July 14, 2006

                              COMPUDYNE CORPORATION
                              ---------------------
             (Exact name of registrant as specified in its charter)

                                     NEVADA
                                     ------
         (State or other jurisdiction of incorporation or organization)

             0-29798                             23-1408659
             -------                             ----------
    (Commission File Number)       (I.R.S. employer identification number)


         2530 Riva Road, Suite 201
         Annapolis, Maryland                                21401
         -----------------                                  -----
   (Address of principal executive office)                (Zip code)


               Registrant's telephone number, including area code
                                 (410) 224-4415

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

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:

|_|   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 1.01     Entry into a Material Definitive Agreement.

CompuDyne Corporation (the "Company"), certain subsidiaries of the Company as
co-borrowers (collectively, with the Company, the "Borrowers"), the banks party
thereto (the "Banks") and PNC Bank, National Association, as agent for the Banks
(the "Agent"), are parties to that certain Second Amended and Restated Revolving
Credit and Security Agreement dated as of December 19, 2005 (as amended, the
"Credit Agreement"). On July 14, 2006, the Borrowers, the Banks and the Agent
entered into (i) the Joinder Agreement (the "Joinder") and (ii) the First
Amendment to the Second Amended and Restated Revolving Credit and Security
Agreement (the "First Amendment").

The First Amendment amended the Credit Agreement to (i) modify the borrowing
base, (ii) permit any Borrower to guaranty certain indebtedness of any other
Borrower, (iii) increase the maximum limit of rental payments for
non-capitalized leases from $3,000,000 to $4,000,000 per fiscal year,(iv) permit
the Company to repurchase or redeem up to a maximum aggregate amount of
$2,000,000 of the Company's 6.25% Convertible Subordinated Notes due January 15,
2011 (v) consent to the acquisition by a newly formed indirect subsidiary of the
Company, of substantially all of the assets and certain liabilities of a very
small signals intercept business pursuant to an asset purchase transaction, all
on the terms and conditions set forth therein.

The Credit Agreement requires that upon the formation of any new subsidiary of
any Borrower, the Borrowers undertake to have such new subsidiary join the
Credit Agreement and the related agreements as a borrower thereunder. The
Joinder was entered into in connection with the formation of Signami DCS, LLC
and provides for the joinder of Signami DCS, LLC as a borrower under the Credit
Agreement and the related documents, with all rights and obligations of a
Borrower thereunder, including, without limitation, the obligation to provide
the Banks with a blanket lien on all of its assets.

A copy of the First Amendment is attached hereto as Exhibit 10.1 and
incorporated herein by reference. A copy of the Joinder is attached hereto as
Exhibit 10.2 and incorporated by reference.


Exhibit No.        Description
- -----------        -----------

10.1               First Amendment to the Second Amended and Restated Revolving
                   Credit and Security Agreement dated July 14, 2006.

10.2               Joinder Agreement dated July 14, 2006.





                                   SIGNATURE

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


Date: July 20, 2006


                               COMPUDYNE CORPORATION



                               By: /s/ Geoffrey F. Feidelberg
                                   --------------------------
                               Name:  Geoffrey F. Feidelberg
                               Title:  Chief Financial Officer