EXHIBIT 4.3

     THE SECURITIES REPRESENTED BY THIS WARRANT MAY NOT BE OFFERED FOR SALE,
     SOLD OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION
     STATEMENT MADE UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR
     PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE ACT, THE AVAILABILITY
     OF WHICH IS TO BE ESTABLISHED TO THE SATISFACTION OF THE COMPANY.

                                    WARRANT

                          SI DIAMOND TECHNOLOGY, INC.

               The Transferability of this Warrant is Restricted
                            as Provided in Article 3

     FOR GOOD AND VALUABLE consideration, the receipt of which is hereby
acknowledged by SI DIAMOND TECHNOLOGY, INC., 12100 Technology Boulevard, Austin,
Texas 78727, a Texas corporation (the "Company"), _____________________
("Holder") is hereby granted the right to purchase, at the initial exercise
price of $1.00 per share, _______ shares of the Company's common stock, $.001
par value (the "Common Shares").

     Subject to the further terms hereof, this Warrant shall be exercisable in
whole or in part at any time and from time to time prior to 5:00 p.m. on June
___, 2002.  This Warrant shall be exercisable only in the event that the
exercise is for, at a minimum, the lesser of (i) 10,000 Common Shares or (ii)
the remaining number of Common Shares which the registered holder of this
Warrant has the right to purchase thereunder.  Upon the expiration of the
applicable period for exercise of this Warrant, this Warrant shall no longer
entitle the holder thereof to acquire any shares of Common Shares or any other
security of the Company.  For the purposes of this Warrant, "Affiliates" or
"Affiliate" of Holder shall mean any person or entity that directly, or
indirectly through one or more intermediaries, controls, or is controlled by, or
is under common control with Holder.  "Control" in, of or by an Affiliate
requires ownership of more than fifty percent (50%) of (i) voting stock of a
company which issued voting stock, or (ii) ownership interest in any enterprise;
an entity or person is an Affiliate only as long as control exists.

     This Warrant initially is exercisable in whole or part as provided above at
a price of $1.00 per Share payable by wire transfer of collected funds, subject
to adjustment as provided in Article 5 hereof.  Upon surrender of this Warrant,
with the annexed Subscription Form duly executed, together with payment of the
Purchase Price (as hereinafter defined) for the Common Shares purchased, at the
offices of the Company, the registered holder of this Warrant shall be entitled
to receive a certificate or certificates for all the Common Shares.

 
1.   EXERCISE OF WARRANT

     The purchase rights represented by this Warrant are exercisable at the
     option of the Holder hereof, in whole Common Shares only (but not as to
     fractional Common Shares underlying this Warrant), during any period in
     which this Warrant may be exercised as set forth above.

     If this Warrant is exercised in part only, the Company, upon surrender of
     this Warrant for cancellation, shall execute and deliver a new Warrant of
     like tenor evidencing the right of the holder to purchase the balance of
     the Common Shares purchasable hereunder.

2.   ISSUANCE OF CERTIFICATES

     Upon the exercise of this Warrant, the issuance of certificates for Common
     Shares underlying this Warrant shall be made forthwith (and in any event
     within five business days thereafter) without charge to the Holder hereof
     including, without limitation, any tax which may be payable in respect of
     the issuance thereof, and such certificates shall (subject to the
     provisions of Article 3 hereof) be issued in the name of, or in such names
     as may be directed by, the Holder hereof; provided, however, that the
     Company shall not be required to pay any tax which may be payable in
     respect of any transfer involved in the issuance and delivery of any such
     certificates in a name other than that of the Holder and the Company shall
     not be required to issue or deliver such certificates unless or until the
     person or persons requesting the issuance thereof shall have paid to the
     Company the amount of such tax or shall have established to the
     satisfaction of the Company that such tax has been paid.  The certificates
     representing the Common Shares underlying this Warrant shall be executed on
     behalf of the Company by the manual or facsimile signature of one of the
     present or any future Chairman or President of the Company and any present
     or future Vice President or Secretary of the Company.  Upon transfer of
     this Warrant in whole or in part to an Affiliate of Holder, such transferee
     shall be entitled to all the rights of a Holder hereof.

3.   RESTRICTION ON TRANSFER OF WARRANT AND COMMON SHARES

     The Holder of this Warrant, by its acceptance hereof, covenants and agrees
     that this Warrant and the Common Shares are being acquired as an investment
     and not with a view to the distribution thereof, and that the Warrant may
     not be exercised, and neither the Warrant nor the Shares may be sold,
     transferred, assigned, hypothecated or otherwise disposed of (other than to
     an Affiliate of Holder), in whole or in part unless in the opinion of
     counsel reasonably concurred in by the Company's counsel such transfer is
     in compliance with all applicable securities laws, after which this Warrant
     and the Common Shares shall again be subject to the restrictions contained
     in this Article 3.

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4.   PRICE

     4.1  Initial and Adjusted Purchase Price. The initial purchase price shall
          be $1.00 per Share. The adjusted purchase price shall be the price
          which shall result from time to time from any and all adjustments of
          the initial purchase price in accordance with the provisions of
          Article 5 hereof.

     4.2  Purchase Price. The term "Purchase Price" herein shall mean the
          initial purchase price or the adjusted purchase price, depending upon
          the context.

5.   ADJUSTMENTS OF PURCHASE PRICE AND NUMBER OF COMMON SHARES

     5.1  Subdivision and Combination

          In case the Company shall at any time subdivide or combine the
          outstanding Common Shares, the Purchase Price shall forthwith be
          proportionately decreased in the case of subdivision or increased in
          the case of combination.

     5.2  Reclassification, Consolidation, Merger, etc.

          In case of any reclassification or change of the outstanding Common
          Shares (other than a change in par value to no par value, or from no
          par value to par value, or as a result of a subdivision or
          combination), or in the case of any consolidation of the Company with,
          or merger of the Company into, another corporation (other than a
          consolidation or merger in which the Company is the surviving
          corporation and which does not result in any reclassification or
          change of the outstanding Common Shares, except a change as a result
          of a subdivision or combination of such shares or a change in par
          value, as aforesaid), or in the case of a sale or conveyance to
          another corporation of the property of the Company as an entirety, the
          Holder of this Warrant shall thereafter have the right to purchase
          upon the exercise of this Warrant the kind and number of shares of
          stock and other securities and property receivable upon such
          reclassification, change, consolidation, merger, sale or conveyance as
          if the Holder were the owner of the Common Shares underlying this
          Warrant immediately prior to any such events at the Purchase Price in
          effect immediately prior to the record date for such reclassification,
          change, consol idation, merger, sale or conveyance as if such Holder
          had exercised this Warrant.


6.   EXCHANGE AND REPLACEMENT OF WARRANT

     This Warrant is exchangeable without expense, upon the surrender hereof by
     the registered Holder at the principal executive office of the Company for
     new Warrants of like tenor and date representing in the aggregate the right
     to purchase the same number of Common 

                                     Page 3

 
     Shares as are purchasable hereunder in such denominations as shall be
     designated by the Holder hereof at the time of such surrender.

     Upon receipt by the Company of evidence reasonably satisfactory to it of
     the loss, theft, destruction or mutilation of this Warrant, and, in case of
     loss, theft or destruction, of indemnity or security reasonably
     satisfactory to it, and reimbursement to the Company of all reasonable
     expenses incidental thereto, and upon surrender and cancellation of this
     Warrant, if mutilated, the Company will make and deliver a new Warrant of
     like tenor, in lieu of this Warrant.

7.   ELIMINATION OF FRACTIONAL INTERESTS

     The Company shall not be required to issue certificates representing
     fractions of Common Shares on the exercise of this Warrant, nor shall it be
     required to issue scrip or pay cash in lieu of fractional interests, it
     being the intent of the parties that all fractional interests shall be
     eliminated.

8.   RESERVATION AND LISTING OF SECURITIES

     The Company shall at all times reserve and keep available out of its
     authorized Common Shares, solely for the purpose of issuance upon the
     exercise of this Warrant, such number of Common Shares as shall be issuable
     upon the exercise hereof and thereof.  The Company covenants and agrees
     that, upon exercise of this Warrant and payment of the Purchase Price
     therefor, all Shares issuable upon such exercise shall be duly and validly
     issued, fully paid and non-assessable.  The Company shall cause all Common
     Shares issuable upon exercise of this Warrant to be registered under the
     Securities Act of 1933, freely tradeable and listed (subject to official
     notice of issuance) on all securities exchanges on which the Common Shares
     may then be listed and/or quoted on NASDAQ, if any.

9.   NOTICES

     All notices, requests, consents and other communications hereunder shall be
     in writing and shall be deemed to have been duly given when delivered, or
     mailed by registered or certified mail, return receipt requested:

     9.1  If to the registered Holder of this Warrant, to the address of such
          Holder as shown on the books of the Company; or

     9.2  If to the Company, to the address set forth on the first page of this
          Warrant or to such other address as the Company may designate by
          notice to the Holders.

                                     Page 4

 
10.  SUCCESSORS

     All the covenants, agreements, representations and warranties contained in
     this Warrant shall bind the parties hereto and their respective heirs,
     executors, administrators, distributors, successors and assigns.
     Assignability of registration rights is limited under the terms of this
     Warrant.

11.  HEADINGS

     The Article and Section headings in this Warrant are inserted for purposes
     of convenience   and shall have no substantive effect.

12.  LAW GOVERNING

     This Warrant shall be construed and enforced in accordance with, and
     governed by, the laws of the State of Texas.

     WITNESS the seal of the Company and the signature of its duly authorized
Officer.

                                      SI DIAMOND TECHNOLOGY, INC.


[ SEAL ]                              By:
                                         --------------------------------       
                                         Trey Fecteau
                                         Senior Vice President

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