UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549

                                  SCHEDULE 13D
                                 (Rule 13d-101)

                 INFORMATION TO BE INCLUDED IN STATEMENTS FILED
                PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO
                         FILED PURSUANT TO RULE 13d-2(a)

                                (Amendment No. 8)


                                Telos Corporation
                                -----------------
                                (Name of Issuer)

            12% Cumulative Exchangeable Redeemable Preferred Stock,
                           Par Value $0.01 Per Share
            -------------------------------------------------------
                         (Title of Class of Securities)

                                    87969B200
                      -------------------------------------
                      (CUSIP Number of Class of Securities)

                    Wynnefield Partners Small Cap Value, L.P.
                          450 Seventh Avenue, Suite 509
                            New York, New York 10123
                           Attention: Mr. Nelson Obus
                           --------------------------
            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)

                                    Copy to:

                            Jeffrey S. Tullman, Esq.
                               Kane Kessler, P.C.
                     1350 Avenue of the Americas, 26th Floor
                            New York, New York 10019
                                 (212) 541-6222

                                February 7, 2007
             -------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)


If the filing person has previously filed a Statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
Schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following
box [ ]

                         (continued on following pages)



                              (Page 1 of 12 pages)


- --------------------------------------------------------------------------------
CUSIP No. 87969B200                  13D/A                    Page 2 of 12 pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1.  NAME OF REPORTING PERSON:
    Wynnefield Partners Small Cap Value, L.P.
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 13-3688497
- --------------------------------------------------------------------------------
2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a) [ ]
    (b) [X]
- --------------------------------------------------------------------------------
3.  SEC USE ONLY
- --------------------------------------------------------------------------------
4.  SOURCE OF FUNDS
    WC (SEE ITEM 3)
- --------------------------------------------------------------------------------
5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) OR 2(e)                                                             [ ]
- --------------------------------------------------------------------------------
6.  CITIZENSHIP OR PLACE OF ORGANIZATION
    DELAWARE
- --------------------------------------------------------------------------------
                     7.  SOLE VOTING POWER
                         131,800 shares (See Item 5)
   NUMBER OF         -----------------------------------------------------------
    SHARES           8.  SHARED VOTING POWER
 BENEFICIALLY            -0- (See Item 5)
   OWNED BY          -----------------------------------------------------------
EACH REPORTING       9.  SOLE DISPOSITIVE POWER
    PERSON               131,800 shares (See Item 5)
     WITH            -----------------------------------------------------------
                     10. SHARED DISPOSITIVE POWER
                         -0- (See Item 5)
- ---------------------------------------- ---------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    131,800 (See Item 5)
- --------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
    [ ]
- --------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
    4.1% (See Item 5)
- --------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
    PN



                              (Page 2 of 12 pages)


- --------------------------------------------------------------------------------
CUSIP No. 87969B200                  13D/A                    Page 3 of 12 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1.  NAME OF REPORTING PERSON:
    Wynnefield Small Cap Value Offshore Fund, Ltd.
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON:  Not Applicable
- --------------------------------------------------------------------------------
2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a) [ ]
    (b) [X]
- --------------------------------------------------------------------------------
3.  SEC USE ONLY
- --------------------------------------------------------------------------------
4.  SOURCE OF FUNDS
    WC (SEE ITEM 3)
- --------------------------------------------------------------------------------
5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2 (d) OR 2 (e)                                                           [ ]
- --------------------------------------------------------------------------------
6.  CITIZENSHIP OR PLACE OF ORGANIZATION
    CAYMAN ISLANDS
- --------------------------------------------------------------------------------
                     7.  SOLE VOTING POWER
                         85,400 shares (See Item 5)
   NUMBER OF         -----------------------------------------------------------
    SHARES           8.  SHARED VOTING POWER
 BENEFICIALLY            -0- (See Item 5)
   OWNED BY          -----------------------------------------------------------
     EACH            9.  SOLE DISPOSITIVE POWER
   REPORTING             85,400 shares (See Item 5)
    PERSON           -----------------------------------------------------------
     WITH            10. SHARED DISPOSITIVE POWER
                         -0- (See Item 5)
- --------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    85,400 shares (See Item 5)
- --------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
    [ ]
- --------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
    2.7% (See Item 5)
- --------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
    CO
- --------------------------------------------------------------------------------



                              (Page 3 of 12 pages)


- --------------------------------------------------------------------------------
CUSIP No. 87969B200                  13D/A                    Page 4 of 12 pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1.  NAME OF REPORTING PERSON:
    Wynnefield Partners Small Cap Value, L.P. I
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON 13-3953291
- --------------------------------------------------------------------------------
2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a) [ ]
    (b) [X]
- --------------------------------------------------------------------------------
3.  SEC USE ONLY
- --------------------------------------------------------------------------------
4.  SOURCE OF FUNDS
    WC (SEE ITEM 3)
- --------------------------------------------------------------------------------
5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) OR 2(e)
- --------------------------------------------------------------------------------
6.  CITIZENSHIP OR PLACE OF ORGANIZATION
    DELAWARE
- --------------------------------------------------------------------------------
                     7.  SOLE VOTING POWER
                         142,800 shares (See Item 5)
  NUMBER OF          -----------------------------------------------------------
   SHARES            8.  SHARED VOTING POWER
BENEFICIALLY             -0- (See Item 5)
  OWNED BY           -----------------------------------------------------------
    EACH             9.  SOLE DISPOSITIVE POWER
  REPORTING              142,800 shares (See Item 5)
   PERSON            -----------------------------------------------------------
    WITH             10. SHARED DISPOSITIVE POWER
                         -0- (See Item 5)
- --------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    142,800 shares (See Item 5)
- --------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
    [ ]
- --------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
    4.5% (See Item 5)
- --------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
    PN
- --------------------------------------------------------------------------------



                              (Page 4 of 12 pages)


- --------------------------------------------------------------------------------
CUSIP No. 87969B200                  13D/A                    Page 5 of 12 pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1.  NAME OF REPORTING PERSON:
    Channel Partnership II, L.P.
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 22-3215653
- --------------------------------------------------------------------------------
2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a) [ ]
    (b) [X]
- --------------------------------------------------------------------------------
3.  SEC USE ONLY
- --------------------------------------------------------------------------------
4.  SOURCE OF FUNDS
    WC (SEE ITEM 3)
- --------------------------------------------------------------------------------
5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) OR 2(e)
- --------------------------------------------------------------------------------
6.  CITIZENSHIP OR PLACE OF ORGANIZATION
    NEW YORK
- --------------------------------------------------------------------------------
                              7.  SOLE VOTING POWER
                                  13,500 shares (See Item 5)
   NUMBER OF         -----------------------------------------------------------
    SHARES                    8.  SHARED VOTING POWER
 BENEFICIALLY                     -0- (See Item 5)
   OWNED BY          -----------------------------------------------------------
EACH REPORTING                9.  SOLE DISPOSITIVE POWER
    PERSON                        13,500 shares (See Item 5)
     WITH            -----------------------------------------------------------
                              10. SHARED DISPOSITIVE POWER
                                  -0- (See Item 5)
- --------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    13,500 shares (See Item 5)
- --------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
    [ ]
- --------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
    0.4 % (See Item 5)
- --------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
    PN



                              (Page 5 of 12 pages)


- --------------------------------------------------------------------------------
CUSIP No. 87969B200                  13D/A                    Page 6 of 12 pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1.  NAME OF REPORTING PERSON:
    Nelson Obus
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON:
- --------------------------------------------------------------------------------
2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a) [ ]
    (b) [X]
- --------------------------------------------------------------------------------
3.  SEC USE ONLY
- --------------------------------------------------------------------------------
4.  SOURCE OF FUNDS
    AF (SEE ITEM 3)
- --------------------------------------------------------------------------------
5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) OR 2(e)
- --------------------------------------------------------------------------------
6.  CITIZENSHIP OR PLACE OF ORGANIZATION
    UNITED STATES OF AMERICA
- --------------------------------------------------------------------------------
                     7.  SOLE VOTING POWER
                         13,500 shares (See Item 5) (1)
   NUMBER OF         -----------------------------------------------------------
    SHARES           8.  SHARED VOTING POWER
 BENEFICIALLY            360,000 (See Item 5) (1)
   OWNED BY          -----------------------------------------------------------
EACH REPORTING       9.  SOLE DISPOSITIVE POWER
    PERSON               13,500 shares (See Item 5)(1)
     WITH            -----------------------------------------------------------
                     10. SHARED DISPOSITIVE POWER
                         360,000 (See Item 5) (1)
- --------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    373,500 shares (See Item 5)(1)
- --------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
    [ ]
- --------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
    11.7% (See Item 5)(1)
- --------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
    IN
- --------------------------------------------------------------------------------
(1) Mr. Obus may be deemed to have an indirect beneficial ownership in such
shares through his positions as a co-managing member of Wynnefield Capital
Management, LLC, a principal executive officer of Wynnefield Capital, Inc., and
general partner of Channel Partnership II, L.P. Wynnefield Capital Management,
LLC holds an indirect beneficial ownership interest in 274,600 shares which are
directly owned by Wynnefield Partners Small Cap Value, L.P. and Wynnefield
Partners Small Cap Value, L.P. I. Wynnefield Capital, Inc. holds an indirect
beneficial ownership interest in 85,400 shares which are directly beneficially
owned by Wynnefield Small Cap Value Offshore Fund, Ltd. Channel Partnership II,
L.P. directly owns 13,500 shares. As Mr. Joshua H. Landes is a co-managing
member of Wynnefield Capital Management, LLC and an executive officer of
Wynnefield Capital, Inc., Mr. Obus shares voting and dispositive power with Mr.
Landes with regard to any shares beneficially owned by Wynnefield Capital
Management, LLC and Wynnefield Capital, Inc.



                              (Page 6 of 12 pages)


- --------------------------------------------------------------------------------
CUSIP No. 87969B200                  13D/A                    Page 7 of 12 pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1.  NAME OF REPORTING PERSON:
    Joshua H. Landes
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON:
- --------------------------------------------------------------------------------
2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a) [ ]
    (b) [X]
- --------------------------------------------------------------------------------
3.  SEC USE ONLY
- --------------------------------------------------------------------------------
4.  SOURCE OF FUNDS
    AF (SEE ITEM 3)
- --------------------------------------------------------------------------------
5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) OR 2(e)
- --------------------------------------------------------------------------------
6.  CITIZENSHIP OR PLACE OF ORGANIZATION
    UNITED STATES OF AMERICA
- --------------------------------------------------------------------------------
                     7.  SOLE VOTING POWER
                         -0- shares (See Item 5) (1)
  NUMBER OF          -----------------------------------------------------------
   SHARES            8.  SHARED VOTING POWER
BENEFICIALLY             360,000 (See Item 5) (1)
  OWNED BY           -----------------------------------------------------------
    EACH             9.  SOLE DISPOSITIVE POWER
  REPORTING              -0- shares (See Item 5) (1)
   PERSON            -----------------------------------------------------------
    WITH             10. SHARED DISPOSITIVE POWER
                         360,000 (See Item 5)
- --------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    360,000 shares (See Item 5) (1)
- --------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
    [ ]
- --------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
    11.3% (See Item 5) (1)
- --------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
    IN
- --------------------------------------------------------------------------------
(1) Mr. Landes may be deemed to have an indirect beneficial ownership in such
shares through his positions as a managing member of Wynnefield Capital
Management, LLC and an executive officer of Wynnefield Capital, Inc. Wynnefield
Capital Management, LLC holds an indirect beneficial ownership interest in
274,600 shares which are directly owned by Wynnefield Partners Small Cap Value,
L.P. and Wynnefield Partners Small Cap Value, L.P. I. Wynnefield Capital, Inc.
holds an indirect beneficial ownership interest in 85,400 shares which are
directly beneficially owned by Wynnefield Small Cap Value Offshore Fund, Ltd. As
Mr. Obus is a co-managing member of Wynnefield Capital Management, LLC and a
principal executive officer of Wynnefield Capital, Inc., Mr. Landes shares
voting and dispositive power with Mr. Obus with regard to any shares
beneficially owned by Wynnefield Capital Management, LLC and Wynnefield Capital,
Inc.



                              (Page 7 of 12 pages)


- --------------------------------------------------------------------------------
CUSIP No. 87969B200                   13D/A                   Page 8 of 12 pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1.  NAME OF REPORTING PERSON:
    Wynnefield Capital Management LLC
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 13-4018186
- --------------------------------------------------------------------------------
2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a) [ ]
    (b) [X]
- --------------------------------------------------------------------------------
3.  SEC USE ONLY
- --------------------------------------------------------------------------------
4.  SOURCE OF FUNDS
    AF (SEE ITEM 3)
- --------------------------------------------------------------------------------
5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) OR 2(e)
- --------------------------------------------------------------------------------
6.  CITIZENSHIP OR PLACE OF ORGANIZATION
    NEW YORK
- --------------------------------------------------------------------------------
                     7.  SOLE VOTING POWER
                         274,600 shares (See Item 5) (1)
  NUMBER OF          -----------------------------------------------------------
   SHARES            8.  SHARED VOTING POWER
BENEFICIALLY             -0- (See Item 5)
  OWNED BY           -----------------------------------------------------------
    EACH             9.  SOLE DISPOSITIVE POWER
  REPORTING              274,600 shares (See Item 5) (1)
   PERSON            -----------------------------------------------------------
    WITH             10. SHARED DISPOSITIVE POWER
                         -0- (See Item 5)
- --------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    274,600 shares (See Item 5) (1)
- --------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
    [ ]
- --------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
    8.6% (See Item 5) (1)
- --------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
    OO (Limited Liability Company)
- --------------------------------------------------------------------------------
(1) Wynnefield Capital Management, LLC, as the general partner of Wynnefield
Partners Small Cap Value, L.P. and Wynnefield Partners Small Cap Value, L.P. I,
holds an indirect beneficial interest in these shares which are directly
beneficially owned by Wynnefield Partners Small Cap Value, L.P. and Wynnefield
Partners Small Cap Value, L.P. I.



                              (Page 8 of 12 pages)


- --------------------------------------------------------------------------------
CUSIP No. 87969B200                   13D/A                   Page 9 of 12 pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1.  NAME OF REPORTING PERSON:
    Wynnefield Capital, Inc.
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: N/A
- --------------------------------------------------------------------------------
2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a) [ ]
    (b) [X]
- --------------------------------------------------------------------------------
3.  SEC USE ONLY
- --------------------------------------------------------------------------------
4.  SOURCE OF FUNDS
    AF (SEE ITEM 3)
- --------------------------------------------------------------------------------
5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) OR 2(e)
- --------------------------------------------------------------------------------
6.  CITIZENSHIP OR PLACE OF ORGANIZATION
    CAYMAN ISLANDS
- --------------------------------------------------------------------------------
                     7.  SOLE VOTING POWER
                         85,400 shares (See Item 5)(1)
  NUMBER OF          -----------------------------------------------------------
   SHARES            8.  SHARED VOTING POWER
BENEFICIALLY             -0- (See Item 5)
  OWNED BY           -----------------------------------------------------------
    EACH             9.  SOLE DISPOSITIVE POWER
  REPORTING              85,400 shares (See Item 5)(1)
   PERSON            -----------------------------------------------------------
    WITH             10. SHARED DISPOSITIVE POWER
                         -0- (See Item 5)
- --------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    85,400 shares (See Item 5)(1)
- --------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
    [ ]
- --------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
    2.7% (See Item 5)(1)
- --------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
    CO
- --------------------------------------------------------------------------------
(1) Wynnefield Capital, Inc. as the sole investment manager of Wynnefield Small
Cap Value Offshore Fund, Ltd., holds an indirect beneficial interest in these
shares which are directly beneficially owned by Wynnefield Small Cap Value
Offshore Fund, Ltd.



                              (Page 9 of 12 pages)



         This Amendment No. 8 (the "Amendment") amends the Statement of
Beneficial Ownership on Schedule 13D, filed with the Securities and Exchange
Commission (the "Commission") on June 24, 1997, and amended by Amendment No. 1
filed on June 22, 1998, and further amended by Amendment No. 2 filed on December
18, 2003, and further amended by Amendment No. 3 filed on April 21, 2004, and
further amended by Amendment No. 4 filed on April 1, 2005, and further amended
by Amendment No. 5 filed on May 9, 2005, and further amended by Amendment No. 6
filed on February 9, 2006, and further amended by Amendment No. 7 filed on June
5, 2006 (the "Wynnefield Schedule 13D"), filed by Wynnefield Partners Small Cap
Value, L.P. (the "Partnership"), Wynnefield Small Cap Value Offshore Fund, Ltd.
(the "Fund"), Wynnefield Partners Small Cap Value, L.P. I (the "Partnership-I"),
Wynnefield Capital Management, LLC ("WCM"), Wynnefield Capital, Inc. ("WCI"),
Nelson Obus ("Mr. Obus"), Joshua Landes ("Mr. Landes") and Channel Partnership
II, L.P. ("Channel" and, collectively with the Partnership, the Fund, the
Partnership-I, WCM, WCI, Mr. Obus, and Mr. Landes, the "Wynnefield Reporting
Persons"), with respect to the shares of 12% Cumulative Exchangeable Redeemable
Preferred Stock, par value $0.01 per share (the "Preferred Shares"), of Telos
Corporation, a Maryland corporation with its principal executive offices located
at 19886 Ashburn Road, Ashburn, Virginia 20147-2358 (the "Issuer"). All defined
terms refer to terms defined herein or in the Wynnefield Schedule 13D. The
information contained in this Amendment is as of the date hereof, unless
otherwise expressly provided herein.

ITEM 4.  PURPOSE OF TRANSACTION.

         "Item 4. Purpose of Transaction." appearing in the Wynnefield Schedule
13D is supplemented by adding the following disclosure to the end of such item:

         On February 7, 2007, the Wynnefield Reporting Persons and the Costa
Brava Reporting Persons mailed a letter to the corporate Secretary of the Issuer
requesting that the Issuer call a special meeting of the holders of the
Preferred Shares pursuant to the Issuer's Articles of Amendment and Restatement
for the purpose of electing two new Class D Directors and further requesting
that the Issuer solicit from all holders of the Preferred Shares nominees for
the vacant Class D directorships.

         As of the date of this Amendment No. 8, except as set forth above, none
of the Wynnefield Reporting Persons has any present plans or intentions which
would result in or relate to any of the transactions described in subparagraphs
(a) through (j) of Item 4 of the instructions to Schedule 13D.

         The Wynnefield Reporting Persons reserves the right to change their
plans and intentions at any time as they deem appropriate. In particular, the
Wynnefield Reporting Persons may purchase Preferred Shares, or may sell or
otherwise dispose of all or a portion of the Preferred Shares, in public and
private transactions and/or may enter into negotiated derivative transactions to
hedge the market risk of some or all positions in, or to obtain greater exposure
to, the Preferred Shares.

         Any such transactions may be effected at any time or from time to time,
subject to any applicable limitations imposed on the sale of shares of the
Common Stock by the Securities Act of 1933, as amended, the Securities Exchange
Act of 1934, as amended and applicable state securities or "blue sky" laws.


                              (Page 10 of 12 pages)





ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

         The following exhibit is filed as part of this Amendment:

         Exhibit 99.4   Letter dated February 7, 2007 to the Corporate Secretary
                        of the Issuer (incorporated herein by reference to
                        Exhibit 99.12 of Amendment No. 12 to the Statement of
                        Beneficial Ownership on Schedule 13D, filed by the Costa
                        Brava Reporting Persons with the Securities and Exchange
                        Commission on February 8, 2007 (File No. 005-34123)).



                                    SIGNATURE

         After reasonable inquiry and to the best of their knowledge and belief,
the undersigned certify that the information set forth in this Amendment is
true, complete and correct.

Dated: February 8, 2007

                                  WYNNEFIELD PARTNERS SMALL CAP VALUE, L.P.

                                  By: Wynnefield Capital Management, LLC,
                                      its General Partner

                                  By: /s/ Nelson Obus
                                      -----------------------------------
                                      Nelson Obus, Co-Managing Member



                              (Page 11 of 12 pages)



                                  WYNNEFIELD PARTNERS SMALL CAP VALUE, L.P. I

                                  By: Wynnefield Capital Management, LLC,
                                      its General Partner

                                  By: /s/ Nelson Obus
                                      -----------------------------------
                                      Nelson Obus, Co-Managing Member

                                  WYNNEFIELD SMALL CAP VALUE OFFSHORE FUND, LTD.

                                  By: Wynnefield Capital, Inc.,
                                       its Investment Manager

                                  By: /s/ Nelson Obus
                                      -----------------------------------
                                      Nelson Obus, President

                                  WYNNEFIELD CAPITAL MANAGEMENT, LLC


                                  By: /s/ Nelson Obus
                                      -----------------------------------
                                      Nelson Obus, Co-Managing Member


                                  WYNNEFIELD CAPITAL, INC.

                                  By: /s/ Nelson Obus
                                      -----------------------------------
                                      Nelson Obus, President

                                  CHANNEL PARTNERSHIP II, L.P.

                                  By: /s/ Nelson Obus
                                      -----------------------------------
                                      Nelson Obus, General Partner

                                      /s/ Nelson Obus
                                      -----------------------------------
                                      Nelson Obus, Individually

                                      /s/ Joshua H. Landes
                                      -----------------------------------
                                      Joshua H. Landes, Individually



                              (Page 12 of 12 Pages)


                                  EXHIBIT 99.4

February 7, 2007

VIA CERTIFIED MAIL, RETURN RECEIPT REQUESTED
- --------------------------------------------

Ms. Therese Hathaway
Secretary
Telos Corporation
19886 Ashburn Road
Ashburn, Virginia  20147-2358

Dear Ms. Hathaway:

Please take notice that the undersigned holders of Telos' 12% Cumulative
Exchangeable Redeemable Preferred Stock ("ERPS") hereby request that Telos call
a special meeting of the holders of ERPS pursuant to Article Fifth, Section 7 of
the Articles of Amendment and Restatement ("Charter") of Telos Corporation
("Telos") for the purpose of electing two new Class D Directors. The undersigned
further request that Telos solicit from all Telos' ERPS holders nominees for the
vacant Class D directorships.

Telos' Charter requires that Telos call a special meeting of the ERPS holders
within 30 days of the mailing of this notice. If Telos fails to call a special
meeting within 30 days of the date of this notice, the undersigned holders of
ERPS will be entitled to call the special meeting at a place of their choosing
at the expense of Telos.



By: /s/ Andrew Siegel
    -----------------
        Andrew Siegel, on behalf of:
        Costa Brava Partnership III, LP


By: /s/ Nelson Obus
    ---------------
        Nelson Obus, on behalf of:
        Wynnefield Small Cap Value, LP
        Wynnefield Small Cap Value I, LP
        Channel Partnership II, LP
        Wynnefield Small Cap Value Offshore Fund, Ltd.
        Wynnefield Capital Management, LLC
        Wynnefield Capital, Inc.
        Joshua Landes