**EXHIBIT10.29**

**SECONDMODIFICATION AGREEMENT**

**THISSECOND MODIFICATION AGREEMENT**(the “Agreement”)****is made and entered into this  ** 30****th** ** **day of **March**, **2007**, by andbetween **First Keystone Bank** (the “Bank”),chartered under the Laws of the United States of America, having its principaloffice at 22 West State Street, Media, Pennsylvania, 19063, **Spitz, Inc.**, a Delaware corporation (the “Borrower”), withan address of P.O. Box 198, Route 1, Chadds Ford, Pennsylvania, 19317, and **Evans & Sutherland Computer Corporation**, a Utahcorporation (the “Guarantor”).  The Bank,Borrower and Guarantor are sometimes herein referred to as a “Party” andcollectively as the “Parties”.

**Background**

**A.           **Bank extended toBorrower a line of credit facility on April 28, 2006, (the “Loan”) in themaximum principal sum of **Three Million Dollars($3,000,000.00)** evidenced by that certain Line of Credit Note (the “Note”)made by Borrower and delivered to Bank on April 28, 2006.  The Loan is to be advanced pursuant to theterms of a Line of Credit Agreement between Bank, Borrower and Guarantor datedApril 28, 2006 (the “Line of Credit Agreement”).   All capitalized terms not specificallydefined herein shall have the meanings given such terms as set forth in theLine of Credit Agreement.

**B.           **The Partiesentered into that certain First Modification Agreement dated July 28, 2006 (the“First Modification”), wherein, among other modifications, the parties agreedto reduce the Maximum Credit Limit to the lesser of (i) **One Million One HundredThousand Dollars ($1,100,000.00),**or (ii) the sum of (a) eighty(80%) percent of the Borrower’s Qualified Accounts Receivable and (b) fifty(50%) percent of Borrower’s Qualified Inventory.

**C.**            On or about April 28, 2006,Transnational Industries, Inc., a Delaware corporation, sold all ofTransnational’s one hundred percent (100%) ownership interest in and toBorrower to Guarantor.

**D.**            The Line of Credit Agreement setsforth certain financial covenants of the Borrower, including without limitationa covenant to provide Bank within ninety (90) days following the end ofBorrower’s tax year, current year end audited financial statements including,without limitation, a balance sheet, income statement and statement of sourceand application of funds (collectively the “Audited Financials”), and acovenant to provide Bank within sixty (60) days of the date the same are duefor filing, copies of Borrower’s Federal Income Tax Returns (the “Tax Returns”).

**E.**             Guarantor is a publicly tradedcompany and, pursuant to the Line of Credit Agreement, has agreed to provide toBank, within ninety (90) days following the end of Guarantor’s fiscal year andeach fiscal quarter, respectively, Guarantor’s Annual Report on Form 10-K andquarterly report on Form 10-Q.

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**F.            **As a wholly ownedsubsidiary of Guarantor, Borrower is no longer required to prepare separateaudited financials or file a separate income tax return and Borrower andGuarantor have requested that Bank waive the requirement that AuditedFinancials and Tax Returns be provided.

**G.           **As of the datehereof the outstanding principal balance of the Loan is **SevenHundred Ninety Nine Thousand Nine Hundred Eighty and 06/100 Dollars($799,980.06)**.

**H.           **Bank has noobligation to modify the terms of the Loan. Bank is willing to grant Borrower’saforementioned request on the terms and conditions set forth in this Agreement.

**Agreement**

**NOWTHEREFORE,**in consideration of the sum of One ($1.00) Dollarand other good and valuable consideration, the receipt and sufficiency of whichare hereby acknowledged, and intending to be legally bound hereby, the partieshereto hereby covenant and agree as follows:

**1.            **The Backgroundrecitals are incorporated herein by reference.

**2.            **Sections 4.1.6.1(a) and (b) of the Line of Credit Agreement respecting the requirement thatBorrower provide Audited Financials and Tax Returns to the Bank are deleted intheir entirety.

**3.            **Borrower andGuarantor hereby ratify and affirm all of the terms, conditions and provisionsof the Line of Credit Agreement, the Note, the First Modification, and allother documents executed and delivered by Borrower or Guarantor in connectionwith the Loan, to the extent the same are not otherwise expressly modifiedherein.  It is expressly agreed andunderstood that except as expressly provided in this Agreement, the terms,conditions and provisions set forth in the Line of Credit Agreement, the Note,the First Modification, and all other documents executed and delivered byBorrower or Guarantor in connection with the Loan shall remain in full force andeffect in accordance with their respective terms, conditions andprovisions.  Without limiting thegenerality of the foregoing, nothing in this Agreement shall be construed to:

**(i)**            impair the validity, perfectionor priority of any lien or security interest securing the Loan;

**(ii)**           waive or impair any rights,powers or remedies of Bank under the Line of Credit Agreement, the Note, andall other documents executed and delivered by Borrower or Guarantor inconnection with the Loan with respect to any defaults thereunder which mayoccur;

**(iii)**         require Bank to hereafter amend ormodify the terms of the Line of Credit Agreement, the Note, or any otherdocuments executed and delivered by Borrower or Guarantor in connection withthe Loan; or

**(iv)**          make any other loan or otherextension of credit to Borrower or Guarantor.

In the event ofany inconsistency between the terms of this Agreement and the Line of CreditAgreement, this Agreement shall govern. Borrower and Guarantor each acknowledge that it has

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consulted withcounsel in connection with the negotiation and delivery of this Agreement.  This Agreement shall be construed withoutregard to any presumption or rule requiring that it be construed against theparty causing this Agreement or any part of this Agreement to be drafted.

**4.            **Borrower andGuarantor hereby acknowledge and agree that no setoff or counterclaim toBorrower’s and Guarantor’s obligations evidenced by the Line of CreditAgreement, the Note, and all other documents executed and delivered by Borroweror Guarantor in connection with the Loan exists, and no agreement has been madewith any person under which any deduction or discount may be claimed, that tothe best of Borrower’s and Guarantor’s knowledge, information and belief, noEvent of Default (as defined in the Line of Credit Agreement) has occurredwhich is continuing and no event has occurred which with the passage of time orthe giving of notice or both, could become an Event of Default under the Lineof Credit Agreement.

**INWITNESS WHEREOF,**the parties hereto have caused thisAgreement to be executed on the day and year first above written.
|                    | ** ** | **BANK:**                                                           |   |   |
|--------------------|------------|---------------------------------------------------------------------|--------|--------|
| ** **         | ** ** | **FIRST KEYSTONE BANK**                                             |   |   |
| ** **         | ** ** | ** **                                                          |   |   |
| ** **         | ** ** | ** **                                                          |   |   |
|               | BY:        | /s/ David Ffrench                                                   |   |   |
|               |       |                                                                |   |   |
| ** **         | ** ** | **BORROWER:**                                                       |   |   |
| ** **         | ** ** | **SPITZ, INC.,**A Delaware Corporation                              |   |   |
| ** **         | ** ** | ** **                                                          |   |   |
| /s/ Calvin Eddings |       | BY: /s/ Paul L. Dailey                                              |
| Witness            |       |                                                                |   |   |
|               |       |                                                                |   |   |
| /s/ Calvin Eddings |       | ATTEST: /s/ David H. Bateman                                        |
| Witness            |       |                                                                |   |   |
|               |       | [Corporate Seal]                                                    |
|               |       |                                                                |
| ** **         | ** ** | **GUARANTOR:**                                                      |   |   |
| ** **         | ** ** | **EVANS & SUTHERLAND COMPUTER CORPORATION,**a  Utah Corporation |
| ** **         | ** ** | ** **                                                          |
| /s/ Calvin Eddings |       | BY: /s/ David H. Bateman                                            |
| Witness            |       |                                                                |
|               |       |                                                                |   |   |
| /s/ Calvin Eddings |       | ATTEST: /s/ Paul L. Dailey                                          |
| Witness            |       |                                                                |   |   |
|               |       | [Corporate Seal]                                                    |

 

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