------------------------------
                                                           OMB APPROVAL
                                                  ------------------------------
                                                  OMB Number           3235-0287
                                                  Expires:            12-31-2001
                                                  Estimated average burden
                                                  hours per response ....... 0.5
                                                  ------------------------------

                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                     FORM 4

             INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
       Section 17(a) of the Public Utility Holding Company Act of 1935 or
               Section 30(f) of the Investment Company Act of 1940


________________________________________________________________________________
1.   Name and Address of Reporting Person*

    Brentlinger                     Charles             Jayson
________________________________________________________________________________
   (Last)                           (First)             (Middle)

    8402 E. Jenan Drive
________________________________________________________________________________
                                    (Street)

    Scottsdale                      Arizona              85260
________________________________________________________________________________
   (City)                           (State)              (Zip)


________________________________________________________________________________
2.   Issuer Name and Ticker or Trading Symbol

    Circuit Research Labs, Inc. (CRLI)
________________________________________________________________________________
3.   IRS Identification Number of Reporting Person, if an Entity (Voluntary)


________________________________________________________________________________
4.   Statement for Month/Year

    March 2001
________________________________________________________________________________
5.   If Amendment, Date of Original (Month/Year)


================================================================================
6.   Relationship of Reporting Person to Issuer
     (Check all applicable)

     [X]  Director                             [X]  10% Owner
     [X]  Officer (give title below)           [_]  Other (specify below)
          President and CEO
________________________________________________________________________________
7.   Individual or Joint/Group Filing (Check applicable line)

     [X]  Form filed by 1 Reporting Person
     [_]  Form filed by more than 1 Reporting Person
________________________________________________________________________________




================================================================================
           Table I -- Non-Derivative Securities Acquired, Disposed of,
                             or Beneficially Owned
================================================================================
<TABLE>
<CAPTION>
                                                                                                                6.
                                                                 4.                              5.             Owner-
                                                                 Securities Acquired (A) or      Amount of      ship
                                                    3.           Disposed of (D)                 Securities     Form:     7.
                                                    Transaction  (Instr. 3, 4 and 5)             Beneficially   Direct    Nature of
                                      2.            Code         ------------------------------- Owned at End   (D) or    Indirect
1.                                    Transaction   (Instr. 8)                   (A)             of Month       Indirect  Beneficial
Title of Security                     Date          ------------     Amount      or     Price    (Instr. 3      (I)       Ownership
(Instr. 3)                            (mm/dd/yy)     Code     V                  (D)             and 4)         (Instr.4) (Instr. 4)
------------------------------------------------------------------------------------------------------------------------------------
<S>                                   <C>            <C>      <C>    <C>         <C>    <C>      <C>            <C>       <C>

------------------------------------------------------------------------------------------------------------------------------------
Common Stock $.10 par value (see note 1)  3-22-01    M              26,500       A      $1.25    840,124          D
------------------------------------------------------------------------------------------------------------------------------------

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

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

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

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

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

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

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

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

====================================================================================================================================
</TABLE>

Reminder: Report on a separate line for each class of securities beneficially
          owned directly or indirectly.

                            (Print or Type Responses)
                                                                          (Over)
                                                                  SEC 1474(3-99)



<PAGE>


FORM 4 (continued)

Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned
         (e.g., puts, calls, warrants, options, convertible securities)

================================================================================
<TABLE>
<CAPTION>
                                                                                                                    10.
                                                                                                          9.        Owner-
                                                                                                          Number    ship
                                                                                                          of        Form
                    2.                                                                                    Deriv-    of
                    Conver-                    5.                              7.                         ative     Deriv-   11.
                    sion                       Number of                       Title and Amount           Secur-    ative    Nature
                    or                         Derivative    6.                of Underlying     8.       ities     Secur-   of
                    Exer-             4.       Securities    Date              Securities        Price    Bene-     ity:     In-
                    cise     3.       Trans-   Acquired (A)  Exercisable and   (Instr. 3 and 4)  of       ficially  Direct   direct
                    Price    Trans-   action   or Disposed   Expiration Date   ----------------  Deriv-   Owned     (D) or   Bene-
1.                  of       action   Code     of(D)         (Month/Day/Year)            Amount  ative    at End    In-      ficial
Title of            Deriv-   Date     (Instr.  (Instr. 3,    ----------------            or      Secur-   of        direct   Owner-
Derivative          ative    (Month/  8)       4 and 5)      Date     Expira-            Number  ity      Month     (I)      ship
Security            Secur-   Day/     ------   ------------  Exer-    tion               of      (Instr.  (Instr.   (Instr.  (Instr.
(Instr. 3)          ity      Year)    Code V    (A)   (D)    cisable  Date     Title     Shares  5)       4)        4)       4)
------------------------------------------------------------------------------------------------------------------------------------
<S>                 <C>      <C>      <C>  <C>  <C>   <C>    <C>      <C>      <C>       <C>     <C>      <C>       <C>      <C>


------------------------------------------------------------------------------------------------------------------------------------
Common Stock (see notes 1 and 2)
------------------------------------------------------------------------------------------------------------------------------------
$.10 par value    $1.25     3/22/01   M              26,500  10/1/99  3/22/01  Common    26,500           0
------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------
Common Stock (see notes 1 and 3)
------------------------------------------------------------------------------------------------------------------------------------
$.10 par value    $1.25                                      10/1/99  10/1/04  Common                     1,000,000
------------------------------------------------------------------------------------------------------------------------------------

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

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

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

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

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

====================================================================================================================================
</TABLE>
Explanation of Responses:

Note 1:  On July 7, 2000, the Board of Directors of Circuit Research Labs, Inc.
declared a 100 percent stock dividend of one share of common stock for each
share outstanding, effective on August 15, 2000 to all shareholders of record
as on the close of business on July 31, 2000.   All figures in this Form 4
reflect the stock split.
Note 2:  On September 30, 1999, the Company entered into with the reporting
person a contract obligating the reporting person to buy 342,500 shares of
common stock for a purchase price of $1.25 per share.  This transaction
represents the final installment of those purchases.
Note 3:  On September 30, 1999, the Company granted the reporting person an
option to purchase 1,000,000 shares of common stock for a purchase price of
$1.25 per share.  This option expires on September 30, 2004.


/s/ Charles Jayson Brentlinger, President                       4/10/01
---------------------------------------------            -----------------------
      **Signature of Reporting Person                             Date


**     Intentional misstatements or omissions of facts constitute Federal
       Criminal Violations.
       See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note:  File three copies of this Form, one of which must be manually signed.
       If space provided is insufficient, see Instruction 6 for procedure.


                                                                          Page 2
[{"type": "4", "sequence": "1", "filename": "0001.txt", "secsgml_size_bytes": 12545}]
------------------------------
                                                           OMB APPROVAL
                                                  ------------------------------
                                                  OMB Number           3235-0287
                                                  Expires:            12-31-2001
                                                  Estimated average burden
                                                  hours per response ....... 0.5
                                                  ------------------------------

                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                     FORM 4

             INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
       Section 17(a) of the Public Utility Holding Company Act of 1935 or
               Section 30(f) of the Investment Company Act of 1940

________________________________________________________________________________
1.   Name and Address of Reporting Person*

    Brentlinger                     Charles             Jayson
________________________________________________________________________________
   (Last)                           (First)             (Middle)

    8402 E. Jenan Drive
________________________________________________________________________________
                                    (Street)

    Scottsdale                      Arizona              85260
________________________________________________________________________________
   (City)                           (State)              (Zip)

________________________________________________________________________________
2.   Issuer Name and Ticker or Trading Symbol

    Circuit Research Labs, Inc. (CRLI)
________________________________________________________________________________
3.   IRS Identification Number of Reporting Person, if an Entity (Voluntary)

________________________________________________________________________________
4.   Statement for Month/Year

    March 2001
________________________________________________________________________________
5.   If Amendment, Date of Original (Month/Year)

================================================================================
6.   Relationship of Reporting Person to Issuer
     (Check all applicable)

     [X]  Director                             [X]  10% Owner
     [X]  Officer (give title below)           [_]  Other (specify below)
          President and CEO
________________________________________________________________________________
7.   Individual or Joint/Group Filing (Check applicable line)

     [X]  Form filed by 1 Reporting Person
     [_]  Form filed by more than 1 Reporting Person
________________________________________________________________________________

================================================================================
           Table I -- Non-Derivative Securities Acquired, Disposed of,
                             or Beneficially Owned
================================================================================
6.
                                                                 4.                              5.             Owner-
                                                                 Securities Acquired (A) or      Amount of      ship
                                                    3.           Disposed of (D)                 Securities     Form:     7.
                                                    Transaction  (Instr. 3, 4 and 5)             Beneficially   Direct    Nature of
                                      2.            Code         ------------------------------- Owned at End   (D) or    Indirect
1.                                    Transaction   (Instr. 8)                   (A)             of Month       Indirect  Beneficial
Title of Security                     Date          ------------     Amount      or     Price    (Instr. 3      (I)       Ownership
(Instr. 3)                            (mm/dd/yy)     Code     V                  (D)             and 4)         (Instr.4) (Instr. 4)
------------------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------------------
Common Stock $.10 par value (see note 1)  3-22-01    M              26,500       A      $1.25    840,124          D
------------------------------------------------------------------------------------------------------------------------------------

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

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

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

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

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

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

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

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

====================================================================================================================================
Reminder: Report on a separate line for each class of securities beneficially
          owned directly or indirectly.

                            (Print or Type Responses)
                                                                          (Over)
                                                                  SEC 1474(3-99)
FORM 4 (continued)

Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned
         (e.g., puts, calls, warrants, options, convertible securities)

================================================================================
10.
                                                                                                          9.        Owner-
                                                                                                          Number    ship
                                                                                                          of        Form
                    2.                                                                                    Deriv-    of
                    Conver-                    5.                              7.                         ative     Deriv-   11.
                    sion                       Number of                       Title and Amount           Secur-    ative    Nature
                    or                         Derivative    6.                of Underlying     8.       ities     Secur-   of
                    Exer-             4.       Securities    Date              Securities        Price    Bene-     ity:     In-
                    cise     3.       Trans-   Acquired (A)  Exercisable and   (Instr. 3 and 4)  of       ficially  Direct   direct
                    Price    Trans-   action   or Disposed   Expiration Date   ----------------  Deriv-   Owned     (D) or   Bene-
1.                  of       action   Code     of(D)         (Month/Day/Year)            Amount  ative    at End    In-      ficial
Title of            Deriv-   Date     (Instr.  (Instr. 3,    ----------------            or      Secur-   of        direct   Owner-
Derivative          ative    (Month/  8)       4 and 5)      Date     Expira-            Number  ity      Month     (I)      ship
Security            Secur-   Day/     ------   ------------  Exer-    tion               of      (Instr.  (Instr.   (Instr.  (Instr.
(Instr. 3)          ity      Year)    Code V    (A)   (D)    cisable  Date     Title     Shares  5)       4)        4)       4)
------------------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------------------
Common Stock (see notes 1 and 2)
------------------------------------------------------------------------------------------------------------------------------------
$.10 par value    $1.25     3/22/01   M              26,500  10/1/99  3/22/01  Common    26,500           0
------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------
Common Stock (see notes 1 and 3)
------------------------------------------------------------------------------------------------------------------------------------
$.10 par value    $1.25                                      10/1/99  10/1/04  Common                     1,000,000
------------------------------------------------------------------------------------------------------------------------------------

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

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

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

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

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

====================================================================================================================================
Explanation of Responses:

Note 1:  On July 7, 2000, the Board of Directors of Circuit Research Labs, Inc.
declared a 100 percent stock dividend of one share of common stock for each
share outstanding, effective on August 15, 2000 to all shareholders of record
as on the close of business on July 31, 2000.   All figures in this Form 4
reflect the stock split.
Note 2:  On September 30, 1999, the Company entered into with the reporting
person a contract obligating the reporting person to buy 342,500 shares of
common stock for a purchase price of $1.25 per share.  This transaction
represents the final installment of those purchases.
Note 3:  On September 30, 1999, the Company granted the reporting person an
option to purchase 1,000,000 shares of common stock for a purchase price of
$1.25 per share.  This option expires on September 30, 2004.

/s/ Charles Jayson Brentlinger, President                       4/10/01
---------------------------------------------            -----------------------
      **Signature of Reporting Person                             Date

**     Intentional misstatements or omissions of facts constitute Federal
       Criminal Violations.
       See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note:  File three copies of this Form, one of which must be manually signed.
       If space provided is insufficient, see Instruction 6 for procedure.

                                                                          Page 2