NON-COMPETITION AGREEMENT

     THIS AGREEMENT is made and entered into as of April 1, 1997, by and 
between XENOTECH, INC. and XENOTECH RENTS, 7344-7348 Bellaire Avenue, North 
Hollywood, California 91605, both California corporations (collectively the 
"Seller"), RICHARD HART, 528 Erskine Drive, Pacific Palisades, California 
90272, a California resident (the "Stockholder"), and BALLANTYNE OF OMAHA, 
INC., 4350 McKinley Street, Omaha, Nebraska 68112, a Delaware corporation 
(the "Buyer").

     WHEREAS, the parties hereto have entered into an Asset Purchase 
Agreement dated as of the 1st day of April, 1997 (the "Asset Purchase 
Agreement") wherein Seller has agreed to sell, and Buyer has agreed to buy, 
all of the operating assets of Seller; and

     WHEREAS, it is specifically provided that as an integral part of said 
transaction, an agreement not to compete would be set forth in a separate 
agreement between the parties, and that this Agreement is in fulfillment of 
the same.

     NOW, THEREFORE, for the consideration mentioned in the Asset Purchase 
Agreement, and in consideration of the purchase by Buyer of substantially all 
of the operating assets of Seller, which is in the business of the design, 
manufacture, marketing, distribution, lease and sale of lighting equipment, 
and in consideration of Two Hundred Fifty Thousand Dollars ($250,000) to be 
paid to Stockholder as hereinafter provided, the parties agree as follows, to 
wit:

     1. Seller and Stockholder jointly and severally agree that for a period 
of time beginning on April 1, 1997, and ending on a date which is three (3) 
years after the date of the termination of Stockholder's employment with the 
Buyer, or on April 1, 2002, whichever date shall be later, Seller and 
Stockholder, or either of them, shall not, without Buyer's prior written 
consent, directly or indirectly, own, manage, operate, join, control, be 
employed by, or participate in the ownership, management, operation or 
control of, or assist any other person, firm, or corporation as an employee 
or otherwise, in the ownership, management, operation or control, financial 
or otherwise, of any business or organization anywhere in the world which, 
directly or indirectly, competes with the lighting business of the Buyer or 
its affiliated or subsidiary companies; and Seller and Stockholder, or either 
of them, shall not, directly or indirectly, by themselves or through others, 
make, manufacture, assemble, sell, distribute or otherwise deal in lighting 
products similar to those manufactured, assembled, sold or distributed by 
Buyer. Stockholder hereby agrees that he shall not, as a director, an 
officer, and the sole stockholder of Seller, take any action which would 
cause the Seller to be in violation of any provision of this Agreement.

     2. Seller specifically acknowledges that the market for its lighting 
business is global and that the restrictions on competition herein contained 
are fair and reasonable.

     3. Seller and Stockholder specifically acknowledge that a breach by them 
or either of them of this Agreement would cause Buyer irreparable harm which 
could not be adequately compensated by monetary damages, and therefore, 
Seller and Stockholder expressly agree that Buyer shall be entitled to 
injunctive or other equitable relief from any




court having jurisdiction of the parties to prevent a breach of this 
Agreement, and that said injunctive or other equitable relief shall be in 
addition to any and all other remedies which may be available to Buyer.

     4. As consideration for this Non-Competition Agreement, Buyer agrees to 
pay to Stockholder the total sum of Two Hundred Fifty Thousand Dollars 
($250,000), payable in five (5) annual installments of Fifty Thousand Dollars 
($50,000) each, the first such installment being due one year after the date 
hereof, such installments continuing on the same date each year until said 
total sum shall be paid in full.  Payment of such installments shall be 
subject to the terms and conditions of an Escrow Agreement between the 
parties hereto, executed simultaneously herewith, the terms and conditions of 
which are incorporated herein by this reference.

     5. This Agreement shall be construed, interpreted and the rights of the 
parties determined in accordance with the laws of the State of California 
(without reference to the choice of law provisions of California law.)

     6. This Agreement shall be binding upon and inure to the benefit of the 
parties hereto and their respective successors and assigns, and no other 
person shall have any right, benefit or obligation hereunder, as a 
third-party beneficiary or otherwise.

     7. In the event that any one or more of the provisions contained in this 
Agreement or in any other instrument referred to herein shall, for any 
reason, be held to be invalid, illegal or unenforceable in any respect, then 
to the maximum extent permitted by law, such invalidity, illegality or 
unenforceability shall not affect any other provision of this Agreement or 
any other such instrument.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
duly executed on their respective behalf by their respective officers 
thereunto duly authorized, all as of the day and year first above written.



XENOTECH, INC.                              XENOTECH RENTS
"Seller"                                    "Seller"



By /s/ Richard Hart                         By /s/ Richard Hart
   ----------------------------                ---------------------------
    Richard Hart, Its President                 Richard Hart, Its President






RICHARD HART                                BALLANTYNE OF OMAHA, INC.
"Stockholder"                               "Buyer"



/s/ Richard Hart                            By /s/ Ronald H. Echtenkamp
- -------------------------------                ---------------------------
                                                Ronald H. Echtenkamp
                                                Vice Chairman



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