Document:

AMENDED AND RESTATED
              EQUIPMENT ACQUISITION LOAN PROMISSORY NOTE

DATE OF NOTE: February 9, 2000

AMOUNT OF NOTE: FIVE HUNDRED THOUSAND DOLLARS ($500,000.00)

MATURITY DATE:  February 8, 2003

     FOR VALUE RECEIVED, the undersigned ("Borrower"), does hereby promise to
pay to the order of THE PROVIDENT BANK, an Ohio banking corporation, or its
successors or assigns, at its office located at 10 West Second Street,
Courthouse Plaza, Suite 1100, Dayton, Ohio  45402 ("Lender"), or at such
other place as the Lender may designate to the Borrower in writing from time
to time, in legal tender of the United States, the Amount of Note, as set
forth above, together with interest at the Interest Rate, as set forth in
Section 1 below, on the Amount of Note until this Note is paid in full.
Except as otherwise defined herein, all capitalized terms shall have the
meanings ascribed to them in the Loan Agreement (as herein defined).

1. INTEREST RATE
   -------------

The "Interest Rate" is shall be equal to: (1) the Prime Rate, as defined
herein, charged by the Lender, minus one quarter of one percent (.25%), or
(2) a fixed rate equal to the Quoted LIBOR Rate plus two and one-half percent
(2.50%) per annum, as elected by Borrower pursuant to the Asset Based Loan
and Security Agreement between Lender and Borrower ("Loan Agreement"), as
defined and determined under the Loan Agreement.

Interest shall be computed daily for the actual number of days elapsed over
a year of 360 days.  As used herein, the Prime Rate is that percentage rate
of interest calculated on the basis of a 360-day year which is established
by Lender from time to time as its Prime Rate, which is in effect until the
new rate is established and which provides a base to which loan rates may be
referenced; it is not necessarily the Lender's lowest loan rate.  In the
event of a change in such Prime Rate, the interest rate hereunder shall be
adjusted accordingly, and such adjustment shall become effective on the
date such Prime Rate changes.  The Quoted LIBOR Rate shall be as defined in
the Loan Agreement.

2. AMORTIZATION PERIOD

The "Amortization Period" shall be         years commencing           , 2000.
                                   -------                  ----------

<PAGE>

3. PRINCIPAL AND INTEREST PAYMENTS
   -------------------------------

Payments of principal in an amount equal to          , plus interest, shall be
                                            ---------
due and payable monthly commencing on            , 2000, and continuing on the
                                      -----------
first day of each and every calendar month thereafter until this Note is paid
in full.  Unless sooner paid, the entire outstanding principal balance and all
accrued, unpaid interest hereunder shall be due and payable on the Maturity
Date.

Borrower shall pay a late payment premium of five percent (5%) of any
principal or interest payment made more than ten (10) days after the Borrower
receives written notice of nonpayment, which shall be due with any such late
payment.

All payments made by the Borrower shall be applied monthly, first to
reimburse Lender, if required, for any costs incurred by the Lender under
any other document executed as collateral security for this Note; second,
to interest which is then due and payable; third, to the payment of late
charges provided herein; and the balance to principal, until the principal
and interest has been paid in full.

4. PREPAYMENT
   ----------

The Borrower shall have the right to prepay all or any part of the Amount of
Note outstanding for which Borrower has made the Prime Rate Election (as
defined in the Loan Agreement), together with all accrued interest thereon
at any time without penalty.  Any partial prepayments of principal shall be
applied against installments of principal due hereunder in inverse order of
maturity.

Borrower may not prepay all or any portion of the Amount of Note outstanding
during any Interest Period (as defined in the Loan Agreement) for which
Borrower has made a LIBOR Rate Election (as defined in the Loan Agreement).
If the Lender has elected to accelerate the repayment in the case of the
occurrence of an Event of Default, or in the case of casualty as set out in
the Loan Agreement, then Lender may, at its sole option:

     (i)  elect to delay any mandatory prepayments of any LIBOR Rate
          Elections for a period up to the expiration of the then-current
          Interest Period or Interest Periods, as applicable, in order to
          coordinate the prepayment date with the last day of the
          applicable Interest Periods; or

     (ii) require prepayment by Borrower, in which case the Borrower shall
          pay to the Lender,  immediately upon demand,  in addition to all
          principal and accrued interest due on the Note, a prepayment
          charge, computed solely by the Lender, in the amount necessary
          to compensate the Lender for reasonable losses, expenses and
          liabilities the Lender may sustain as a result of such prepayment,
          including, without limitation, any losses and expenses arising
          from the liquidation or reemployment of deposits acquired to fund
          or maintain the principal amount prepaid.  In calculating

<PAGE>

          the amount of such a prepayment charge, the Lender's determination
          of the amount of such reimbursement shall be conclusive in the
          absence of manifest error.  Upon request, Lender shall provide
          Borrower with documentation supporting the Lender's calculation of
          the prepayment charge.

5. LOAN AGREEMENT; COLLATERAL
   --------------------------

This Note is issued under and entitled to the benefits of a Loan Agreement
dated April 14, 1995, as amended by amendments dated July 31, 1997, April
29, 1998, September 8, 1998, June 30, 1999 and             , 2000 ("Loan
                                               ------------
Agreement") among Lender and the Borrower, to which Loan Agreement reference
is hereby made for a statement of the rights in respect thereto of the
holder of this Note.

This Note will be secured by the collateral identified and described in
Section 2 of the Loan Agreement (the "Mortgage" and "Collateral"), to which
section reference is hereby made for a statement of the rights in respect
thereto of the holder of this Note.

6. DEFAULT
   -------

Upon the occurrence of any event constituting an Event of Default under
the terms of the Loan Agreement, the entire balance of the principal and
interest upon this Note then owing and unpaid, at the option of the holder
hereof, immediately shall become due and payable.  Delay on the part of the
holder of this Note in execution of the right to declare this obligation
due shall not be a waiver thereof.

After an Event of Default, the Amount of Note outstanding shall bear interest
at three percent (3%) per annum in excess of the Interest Rate in effect from
time to time, each change in such rate to be effective as of the date of such
changes.

Should the indebtedness represented by this Note or any part thereof be
collected at law or in equity, or in bankruptcy, receivership or any other
court proceedings (whether at the trial or appellate level), or should this
Note be placed in the hands of attorneys for collection upon the occurrence
of an Event of Default, the Borrower agrees to pay, in addition to the
principal, premium and interest due and payable hereon, all costs of collec-
tion, including reasonable attorneys' fees and expenses.

All parties to this Note, whether the Borrower, principal, surety, guarantor
or endorser, hereby jointly and severally waive presentment for payment,
demand, protest, notice of protest, notice of dishonor and any other notice
required to be given by law in connection with the delivery, acceptance,
performance, default or enforcement of this Note or any endorsement or
guaranty of this Note, and consent to all forbearance or waiver of any term
hereof or release or discharge by the holder hereof of the Borrower,
guarantors, endorsers, or sureties of the release,

<PAGE>

substitution or exchange of any security for the payment hereof or the
failure to act on the part of the holder or any other indulgence shown by
the holder from time to time, in one or more instances (without notice to
or further assent from the Borrower, guarantors, endorsers or sureties) and
the Borrower, guarantors, endorsers or sureties agree that no such action,
failure to act or failure to exercise any right or remedy on the part of the
holder shall in any way affect or impair the obligations of the Borrower
hereunder or of any guarantors, endorsers or sureties or be construed as a
waiver by the holder of or otherwise affect any of the holder's rights under
this Note, under any endorsement or guaranty of this Note or under any
document or instrument evidencing any security for payment of this Note.

7. MODIFICATION
   ------------

This Note may not be changed orally, but only by an agreement in writing,
signed by the party against whom enforcement of any change or modification
is sought.

8. LIMITATION ON INTEREST
   ----------------------

Anything herein to the contrary notwithstanding, the obligations of the
Borrower under this Note shall be subject to the limitation that payments
of interest shall not be required to the extent that receipt of any such
payment by the Lender would be contrary to provisions of law applicable to
the Lender limiting the maximum rate of interest that may be charged or
collected by the Lender.

9. GOVERNING LAW
   -------------

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

10. WAIVER OF JURY TRIAL
    --------------------

As a specifically bargained inducement for Lender to extend credit to the
Borrower, the Borrower hereby expressly waives the right to trial by jury in
any lawsuit or proceeding related to this Note or arising in any way from
the indebtedness or transactions involving the Lender and the Borrower.

11. CONFESSION OF JUDGMENT
    ----------------------

The Borrower authorizes any attorney-of-law to appear in any court of record
in Hamilton County or Montgomery County, Ohio, or in any court of record in
the jurisdiction in which the Borrower against which or whom a judgment is
then sought may then reside, or in any court of record in the jurisdiction
in which the property described in the Collateral is located, after the
indebtedness evidenced hereby becomes due, and to waive the issuing and
service of process and to confess judgment against the Borrower in favor of
the Lender for the amount then

<PAGE>

appearing due, together with costs of suit and thereupon to release all
errors and waive all rights of appeal and stay of execution.

     WARNING: BY SIGNING THIS PAPER YOU GIVE UP YOUR RIGHT TO NOTICE
     AND COURT TRIAL.  IF YOU DO NOT PAY ON TIME, A COURT JUDGMENT MAY
     BE TAKEN AGAINST YOU WITHOUT YOUR PRIOR KNOWLEDGE AND THE POWERS
     OF A COURT CAN BE USED TO COLLECT FROM YOU REGARDLESS OF ANY CLAIMS
     YOU MAY HAVE AGAINST THE CREDITOR WHETHER FOR RETURNED GOODS,
     FAULTY GOODS, FAILURE ON ITS PART TO COMPLY WITH THE AGREEMENT, OR
     ANY OTHER CAUSE.

     IN WITNESS WHEREOF, the Borrower has executed and delivered this Note
on the day and year first above written.

                                       Borrowers:

                                       LYTTON INCORPORATED, a
                                       Delaware corporation

                                           /s/ David Watts

                                       By---------------------------------
                                           DAVID WATTS
                                       Its Chief Executive Officer

STATE OF OHIO, COUNTY OF MONTGOMERY, SS:

     The foregoing instrument was acknowledged before me this 9th day of
February, 2000, by David Watts, the Chief Executive Officer of Lytton
Incorporated, a Delaware corporation, on behalf of said corporation.

                                       /s/ M. Shannon Martin

                                       -----------------------------------
                                       Attorney at Law, OhioGUARANTY

     THIS GUARANTY is made this 9th day of February, 2000, among LYTTON
INCORPORATED, a Delaware corporation (the "Guarantor"), and THE PROVIDENT
BANK, an Ohio banking corporation ("Lender"), under the following circum-
stances:

     WHEREAS, Lender has entered into an Asset Based Loan and Security
Agreement ("the Loan Agreement") committing Lender to loan up to the
principal sum of FIVE MILLION FIVE HUNDRED THOUSAND DOLLARS ($5,500,000.00)
(the "Loan") to Techdyne, Inc., a Florida corporation ("Borrower").

     WHEREAS, the indebtedness is evidenced by (a) Borrower's Line of Credit
Promissory Note in the amount of FOUR MILLION FIVE HUNDRED THOUSAND DOLLARS
($4,500,000.00) ("Line of Credit Note"), and (b) Borrower's Term Loan
Promissory Note in the amount of ONE MILLION DOLLARS ($1,000,000.00) ("Term
Note"), both of which are dated February 9, 2000 and are hereinafter
collectively referred to as the "Notes".

     WHEREAS, the Notes are secured by a security interest in all of
Borrower's assets, inventory, accounts, equipment and general intangibles.

    WHEREAS, as an inducement to Lender to make the Loan to Borrower pursuant
to the Loan Agreement, the Guarantor is willing to guaranty all obligations of
the Borrower under the Notes and to execute and deliver this Guaranty.

     NOW, THEREFORE, Guarantor and Lender agree as follows:

     Section 1. Representations and Warranties.  Guarantor hereby represents
     ---------  ------------------------------
and warrants as follows:

     (a) Guarantor is a corporation duly organized, existing and in good
         standing under the laws of the State of Delaware and is authorized
         to do business in Ohio.  Guarantor has the power to own its own
         properties and to carry on its business as now being conducted;

     (b) the execution of this Guaranty has been fully authorized by Guarantor
         and the officer so executing same has been duly authorized;

     (c) this Guaranty is a legal, valid and binding obligation of the
         Guarantor, enforceable in accordance with its terms except as
         enforcement of such terms may be limited by (i) bankruptcy,
         insolvency or similar laws affecting enforcement of creditors' rights
         generally and (ii) equitable principles which may limit the
         availability of the remedy of specific performance or other equitable
         remedies;

<PAGE>  1

     (d) the execution, delivery and performance of this Guaranty do not and
         will not violate or contravene the Articles of Incorporation or
         By-Laws of Guarantor, any authority having the force of law or any
         material indenture, agreement or other instrument to which the
         Guarantor is a party or by which the Guarantor or any of its property
         or assets is or may be bound or materially affected.

     Section 2.  Statement of Guaranty.  Guarantor hereby absolutely and
     ---------   ---------------------
unconditionally guarantees prompt payment when due of any and all existing
and future indebtedness or liability of every kind, nature or character
(including, without limitation, principal, interest, all costs of collection,
and attorneys' fees) owing to Lender by Borrower, whether direct or indirect,
absolute or contingent, joint or several, whether due or to become due and
whether now existing or hereafter arising under the Notes and Loan Agreement
and all extensions and renewals thereof (the "Indebtedness").  The Guarantor
undertakes this continuing, absolute, and unconditional guaranty of the
aforementioned payment and performance by Borrower notwithstanding that any
portion of the Indebtedness shall be void or voidable as between the
Borrower and any of its creditors, including, without limitation, any
bankruptcy trustee of the Borrower.

     Section 3.  Waiver.  This absolute, continuing, unconditional guaranty
     ---------   ------
is a guaranty of payment and not a guaranty of collection.  Upon Borrower's
failure to pay the Indebtedness promptly when due, Lender, at its sole
option, may proceed against the Guarantor to collect the Indebtedness, with
or without proceeding against the Borrower, any co-maker or co-surety or co-
guarantor, any indorser or any collateral held as security for the
Indebtedness.  The Guarantor waives any right to require that any action be
brought against the Borrower or to require that resort be had to any security
or other right or remedy which may be available to Lender.  Any and all
payments upon the Indebtedness made by the Borrower, the Guarantor, or any
other person, and the proceeds of any and all collateral securing the payment
of the Indebtedness and this Guaranty, may be applied by Lender in whatever
manner it may determine in its sole discretion.  The Guarantor agrees to
reimburse Lender for all reasonable expenses of any nature whatsoever
including, without limitation, reasonable attorneys' fees, incurred or paid
by Lender in exercising any right, power, or remedy conferred by this
Guaranty.  Until the Indebtedness is paid in full, the Guarantor shall not
exercise any right of subrogation with respect to payments made by the
Guarantor pursuant to this Guaranty.

     The obligations of the Guarantor set forth in this Guaranty shall extend
to all amendments, supplements, modifications, renewals, replacements or
extensions of the Indebtedness at any rate of interest.  The liability of
the Guarantor and the rights of Lender under this Guaranty shall not be
impaired or affected in any manner by, and the Guarantor hereby consents
in advance to and waives any requirement of notice for, any (1) disposition,
impairment, release, surrender, substitution, or modification of any
collateral securing the Indebtedness or the obligations created by this
Guaranty or any failure to perfect a security interest in any collateral
through no fault on the part of Lender; (2) release (including adjudication
or discharge in bankruptcy) or settlement with any person primarily or
secondarily liable for the Indebtedness (including, without limitation,
any maker, indorser, guarantor or surety); (3) delay in enforcement of
payment of the Indebtedness or delay in enforcement of this Guaranty; (4)
delay, omission, waiver, or forbearance in exercising any right or power with
respect to the Indebtedness or this Guaranty; (5) defense arising from the
enforceability

<PAGE>  2

or validity of the Indebtedness or any part thereof or the genuineness,
enforceability or validity of any agreement relating thereto: (6) any
defenses or counterclaims that the Borrower may assert on the Indebtedness,
including but not limited to failure of consideration, breach of warranty,
fraud, payment, statute of frauds, bankruptcy, infancy, statute of limita-
tions, lender liability, accord and satisfaction and usury; or (7) other act
or omission which might constitute a legal or equitable discharge of the
Guarantor.  The Guarantor waives presentment, protest, demand for payment,
any right or set-off, notice of dishonor or default, notice of acceptance of
this Guaranty, notice of the incurring of any of the Indebtedness and notice
of any other kind in connection with the Indebtedness or this Guaranty.

    Section 4.  Insolvency of Borrower.  The Guarantor agrees that in the
    ---------   ----------------------
event of (i) the dissolution or insolvency of the Borrower, (ii) the
inability of the Borrower to pay its debts as they become due, (iii) an
assignment by the Borrower for the benefit of its creditors, or (iv) the
institution of any bankruptcy or other proceeding by the Borrower or the
filing of an involuntary bankruptcy proceeding against Borrower alleging that
the Borrower is insolvent or unable to pay its debts as they become due
(provided however, that Borrower shall have sixty (60) days in which to cause
the petition to be released or dismissed if, in Lender's reasonable judgment,
such petition is likely to be released or dismissed within such sixty (60)
days); and whether or not such event shall occur at a time when the Indebted-
ness was then due and payable, the Guarantor shall pay the Indebtedness to
Lender promptly upon demand as if the Indebtedness was then due and payable.
The Guarantor hereby waives any claim, right or remedy which the Guarantor
may now have or hereafter acquire against Borrower that arises hereunder
and/or from the performance by the Guarantor hereunder including, without
limitation, any claim, remedy or right of subrogation, reimbursement,
exoneration, contribution, indemnification, or participation in any claim,
right or remedy of Lender against Borrower or any security which Lender now
has or hereafter acquires, whether or not such claim, right or remedy arises
in equity, under contract, by statute, under common law or otherwise.

     The Guarantor agrees that this Guaranty shall continue to be effective
or be reinstated, as the case may be, if at any time payment, or any part
thereof, of principal, interest or any other amount with respect to the
Indebtedness is rescinded or must otherwise be restored by Lender upon the
bankruptcy or reorganization of the Borrower, any other person or otherwise.

     Upon any portion of the Indebtedness becoming due and not being fully
paid and satisfied, the total sum then due hereunder may immediately be
charged against any account or accounts maintained by the Guarantor with
Lender, without notice to or further consent from the Guarantor.  The
Guarantor shall promptly provide such financial information as the holder
shall reasonably request from time to time.

     Lender shall not be compelled to resort first to any collateral for
payment of any of the Indebtedness, but may at its election require the
obligation to be paid by the Guarantor, with or without suit.  The provisions
of this Guaranty shall apply to any new or additional collateral given by
the Guarantor to further secure the Indebtedness and the obligations created
by this Guaranty.

<PAGE>  3

     Section 5.  Security.  This Guaranty will be secured by a Security
     ---------   --------
Agreement granting Lender a security interest in all of Guarantor's Accounts,
Equipment, General Intangibles, Inventory and all other items of personal
property now owned or hereafter acquired by the Guarantor or in which the
Guarantor has granted or may in the future grant a security interest to the
Bank hereunder ("Collateral").

     Section 6.  Waiver of Jury Trial.  As a specifically bargained induce-
     ---------   --------------------
ment for Lender to extend credit to Borrower: (i) THE GUARANTOR HEREBY
EXPRESSLY WAIVES THE RIGHT TO TRIAL BY JURY IN ANY LAWSUIT OR PROCEEDING
RELATED TO THIS GUARANTY OR ARISING IN ANY WAY FROM THE INDEBTEDNESS OR
TRANSACTIONS INVOLVING LENDER AND THE DEBTOR AND (ii) THE GUARANTOR HEREBY
DESIGNATES ALL COURTS OF RECORD SITTING IN DAYTON, OHIO AND HAVING JURIS-
DICTION OVER THE SUBJECT MATTER, STATE AND FEDERAL, AS FORUMS WHERE ANY
ACTION, SUIT OR PROCEEDING IN RESPECT OF OR ARISING FROM OR OUT OF THIS
GUARANTY, ITS MAKING, VALIDITY OR PERFORMANCE, MAY BE PROSECUTED AS TO ALL
PARTIES, THEIR SUCCESSORS AND ASSIGNS, AND BY THE FOREGOING DESIGNATION THE
GUARANTOR CONSENTS TO THE JURISDICTION AND VENUE OF SUCH COURTS.

     Section 7.  Successors and Assigns.  This Guaranty shall inure to the
     ---------   ----------------------
benefit of and bind the parties hereto, their successors and assigns, and
their legal representatives or heirs.  Lender may, at its option, assign
this Guaranty to any other party who is or becomes the indorsee or assignee
of any part of the Indebtedness or who is in possession of or the bearer of
any part of the Indebtedness that is payable to the bearer, and the
Guarantor shall continue to be liable under this Guaranty to such other
party to the extent of such indorsed, assigned, or possessed Indebtedness.

     Section 8.  Confession of Judgment.  The Guarantor authorizes any
     ---------   ----------------------
attorney at law, including an attorney engaged by Lender, to appear in
Hamilton County or Montgomery County, Ohio, or in any other court of record
in the State of Ohio or any other State or Territory of the United State,
after the indebtedness evidenced hereby, or any part thereof, becomes due
and waive the issuance and service of process and confess judgment against
the Guarantor in favor of Lender, for the amount then appearing due,
together with costs of suit, and thereupon, to release all errors and waive
all rights of appeal and stay of execution.  The Guarantor hereby expressly
waives any conflict of interest that Lender's attorney may have in confessing
such judgment against the Guarantor and expressly consents to the confessing
attorney receiving a legal fee from Lender or confessing such judgment
against the Guarantor.  This warrant of attorney to confess judgment is a
joint and several warrant of attorney.  The foregoing warrant of attorney
shall survive any judgment; and if any judgment be vacated for any reason,
the holder hereof nevertheless may thereafter use the foregoing warrant of
attorney to obtain an additional judgment or judgments against the Guarantor.

     WARNING--BY SIGNING THIS PAPER, YOU GIVE UP YOUR RIGHT TO NOTICE AND
     COURT TRIAL.  IF YOU DO NOT PAY ON TIME, A COURT JUDGMENT MAY BE TAKEN
     AGAINST YOU WITHOUT YOUR PRIOR KNOWLEDGE, AND THE POWERS OF A COURT
     CAN BE USED TO

<PAGE>  4

     COLLECT FROM YOU REGARDLESS OF ANY CLAIMS YOU MAY HAVE AGAINST THE
     CREDITOR WHETHER FOR RETURNED GOODS, FAULTY GOODS, FAILURE ON ITS
     PART TO COMPLY WITH THE AGREEMENT OR ANY OTHER CAUSE.

     IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Guaranty on the day and year first above written.

WITNESSES                              GUARANTOR

                                       LYTTON INCORPORATED,
                                       a Delaware corporation

/s/ Anne Marie Linnert                    /s/ David Watts

----------------------------------     By---------------------------------
                                           DAVID WATTS
/s/ M. Shannon Martin, Esq.            Its Chief Financial Officer

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

                                       LENDER

                                       THE PROVIDENT BANK,
                                       an Ohio banking corporation

/s/ Anne Marie Linnert                    /s/ Clifford M. Biship

----------------------------------     By---------------------------------
                                          Clifford M. Bishop
/s/ M. Shannon Martin, Esq.               Vice President

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

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