Document:

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                                                                Exhibit 10(A)(3)

Servotronics, Inc. and Subsidiaries

As of May 1, 2000

Dr. Nicholas D. Trbovich
1110 Maple Street
Elma, NY 14059

Dear Dr. Trbovich:

You and Servotronics, Inc. (the "Company") are parties to an employment
agreement, as amended and restated on August 8, 1986 and as subsequently amended
as of October 1, 1986, October 1, 1987, July 20, 1988, October 1, 1988, October
1, 1989, May 1, 1990, May 1, 1991, May 1, 1992, May 1, 1993, March 28, 1994, May
1, 1994, May 1, 1995, May 1, 1996, May 1, 1997, March 9, 1998, May 1, 1998,
October 6, 1998, April 28, 1999 and May 1, 1999 (the "Agreement"), pursuant to
which you are employed by the Company.

This will confirm your agreement and that of the Company (pursuant to a
resolution of the Board of Directors passed at a meeting held on July 7, 2000)
to amend Paragraph 3 of the Agreement to delete "$325,000.00" and insert in its
place "$331,500.00".

Except as specifically provided herein, all of the other terms and conditions of
the Agreement shall remain in full force and effect.

If the foregoing meets with your approval and you are willing to become bound
hereby, will you please sign and return to the undersigned the enclosed copy of
this letter.

Very truly yours,

SERVOTRONICS, INC.

/s/ Lee D. Burns
Lee D. Burns,
Treasurer/Secretary

ACCEPTED AND AGREED

/s/ Dr. Nicholas D. Trbovich
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Dr. Nicholas D. Trbovich<PAGE>   1
Exhibit 10(D)(1)(a)                                                  Page 1 of 8

                                    EXHIBIT A

                               SERVOTRONICS, INC.

                        2000 EMPLOYEES STOCK OPTION PLAN

         1. Purpose

              The purpose of the  Servotronics,  Inc 2000 Employees Stock Option
Plan ("Plan") is to encourage ownership of the stock of Servotronics,  Inc. (the
"Company")  by officers and other key employees of the Company and, by doing so,
to increase the incentive for such employees to put forth maximum effort for the
success of the Company's business. The Plan is intended to enhance the Company's
ability to attract  and  retain  highly  qualified  persons  for the  successful
conduct of its business.

         2. Definitions

              As used in this Plan:

              a. "Common Stock" means the common stock,  $.20 par value,  of the
Company.

              b. "Key  Employees"  means officers and other key employees of the
Company.

              c.  "Fair  Market  Value" of a share of  Common  Stock on any date
means the average of the highest and lowest  quoted  sales  prices of a share of
Common  Stock if the  Company's  stock is listed on an  exchange  or the average
between  the bid and the  asked  price for that date if the  shares  are  traded
over-the-counter  (or, if no such shares were publicly  traded on that date, the
next  preceding  date that such shares were so traded),  all as published in The
Wall  Street  Journal or in any other  publication  selected  by the  Committee;
provided,  however,  that if shares of Common Stock shall not have been publicly
traded for more than ten days  immediately  preceding  such date,  then the Fair
Market value of a share of Common Stock shall be  determined by the Committee in
such manner as it may deem appropriate.
<PAGE>   2
Exhibit 10(D)(1)(a)                                                  Page 2 of 8

              d.  "Option"  means  an  option  granted  pursuant  to the Plan to
purchase  shares of Common  Stock  and may  refer to either an  incentive  stock
option as defined in  Section  422A of the  Internal  Revenue  Code of 1954,  as
amended ("Code"),  or a non-qualified stock option, that is, a stock option that
is not an incentive stock option.

              e. "Committee"  means a Committee of the Board of Directors of the
Company or such other  committee  of the Board that the Board has  appointed  to
administer the Plan. Members of the Committee shall be disinterested  persons as
defined in Rule 16b-3 promulgated under the Securities Exchange Act of 1934.

         3. Administration

         The Plan shall be  administered  by the Committee.  The Committee shall
have all the powers vested in it by the terms of the Plan.  The Committee  shall
be authorized  to interpret the Plan and the Options  granted under the Plan, to
establish, amend, and rescind rules and regulations relating to the Plan, and to
make  any   determinations   it  believes   necessary  or   advisable   for  the
administration  of the Plan.  The Committee may correct any defect or supply any
omission  or  reconcile  any  inconsistency  in the Plan or in any Option in the
manner and to the extent the  Committee  deems  desirable.  Any  decision of the
Committee in the  administration of the Plan shall be in its sole discretion and
conclusive.  The  Committee may act only by a majority of its members in office,
except that the members of the  Committee may authorize any one or more of their
number or any officer of the Company to execute and deliver  documents on behalf
of the Committee.

         4. Shares Available

              A total of 110,000  shares of Common Stock of the Company shall be
available for grant under the Plan.  The aggregate  number of shares that may be
purchased  pursuant to Option shall not exceed the  available  number of shares.
Upon the expiration or termination in whole or part of any  unexercised  Option,
the shares of Common Stock  subject to such Option shall again be available  for
grant under the Plan.
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Exhibit 10(D)(1)(a)                                                  Page 3 of 8

         5. Grant of Options

              a. The  Company  may grant  Options to Key  Employees  to purchase
shares of Common Stock under the Plan.

              b. The  Committee  shall select the Key  Employees to whom Options
are to be granted  and shall  determine  when  Options are to be granted and the
number of shares to be subject to each option.  No incentive  stock option shall
be granted to any employee who, at the time the incentive  stock option would be
granted, owns stock possessing more than 10 percent of the combined voting power
of all classes of stock of the Company.

         6. Terms of Options Granted to Key Employees

              Each  Option  granted  to a Key  Employee  under the Plan shall be
evidenced by a written  stock option  agreement  executed by the Company and the
holder of the  Option,  in such form and upon such terms and  conditions  as the
Committee shall determine and as are consistent with the provisions of the Plan,
including the following:

              a. The purchase  price of each share of Common Stock subject to an
Option  shall not be less than the Fair Market  value of a share of Common Stock
on the date the option is granted.

              b. An  Option  may be  exercised  in whole or in part from time to
time during such periods as the Option shall  specify,  provided  that no Option
shall be exercisable  within one year after,  or more than ten years after,  the
date of the grant of the Option.

              c. An Option may require that the  Optionee  represent at the time
of each exercise of the Option that the shares  purchased are being acquired for
investment and not-with a view to distribution.

              d. The  purchase  price of the  shares  with  respect  to which an
Option  is  exercised  shall  be  payable  in full on the  date  the  Option  is
exercised, in cash or, to the
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Exhibit 10(D)(1)(a)                                                  Page 4 of 8

extent authorized by the Committee at the time the Option is granted,  in shares
of Common  Stock or in a  combination  of cash and such  shares.  The value of a
share of Common Stock  delivered  in payment of the purchase  price shall be its
Fair Market Value on the date the Option is exercised.

              e. An  Option  shall  not be  assignable  or  transferable  by the
Employee to whom granted except by will or the laws of descent and  distribution
and shall be exercisable, during the employee's lifetime, only by him.

              f. An  Option  may  require  that the  Optionee  sell  back to the
Company  any shares  acquired  pursuant  to the  exercise of the Option upon the
termination  of the  Optionee's  employment  with the  Company  at the then Fair
Market Value of the share;  as determined by the Committee,  if such shares have
not been registered  under  applicable  securities laws or if there is no public
market for such shares of the Company's Common Stock.

              g. The  Committee  shall  specify  the right of each  optionee  to
exercise his Option to purchase the number of shares.

              h. Each agreement  relating to an Option granted to a Key Employee
shall  state  the  extent  to which  such  Option  is  intended  to be either an
incentive stock option or a non-qualified stock option.

              i. Any Option that has not already expired,  shall expire upon the
termination of the optionee's  employment with the Company,  whether by death or
otherwise, and no shares of Common Stock may thereafter be purchased pursuant to
such Option, except that:

                  (1) An optionee may, within three months after the date of the
termination  of his  employment,  purchase  any shares of Common  Stock that the
optionee was entitled to purchase under an Option on the date of the termination
of his  employment.  If the optionee is disabled  (within the meaning of Section
422A(c)(9) of
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Exhibit 10(D)(1)(a)                                                  Page 5 of 8

the  Code)  upon the  termination  of his  employment,  the  three-month  period
provided in this paragraph shall be extended to twelve months.

                  (2) Upon the death of any  optionee  while  employed  with the
Company or within the  three-month  period  referred to in Section 6(g)(i) above
(twelve months,  in the case of a disabled  optionee),  the optionee's estate or
the person to whom such  optionee's  rights under the Option are  transferred by
will or the laws of descent and distribution may, within one year after the date
of the optionee's  death,  purchase any shares of Common Stock that the optionee
was entitled to purchase under an Option on the date of his death.

              Nothing in this  subsection  shall  authorize  the  exercise of an
Option after the expiration of the exercise period  provided in the Option,  nor
later than ten years after the date of the grant of the Option.

         7. Additional Terms of Incentive Stock Option

              Each  incentive  stock  option  granted  under  the Plan  shall be
subject to the  following  terms and  conditions  in  addition  to the terms and
conditions described in Section 6 above:

              If an  optionee  disposes  of  shares  acquired  pursuant  to  the
exercise of an incentive stock option in a disqualifying  disposition within the
time periods  identified in Section 422(a)(1) of the Code, the optionee shall be
required to notify the Company of such  disposition and provide the Company with
information  as to the date of  disposition,  sales price,  and number of shares
involved, and with any other information about such disposition that the Company
may reasonably request.

         8. Adjustment of Shares Available

              If there is any  change  in the  number of  outstanding  shares of
Common  Stock of the  Company  through the  declaration  of stock  dividends  or
through  stock  splits,  then the number of shares  available for Options and of
shares  subject to any Option and the purchase  prices of any shares  subject to
any Option shall be
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Exhibit 10(D)(1)(a)                                                  Page 6 of 8

automatically  adjusted.  If there is any  change in the  number of  outstanding
shares of Common Stock of the Company  through any change in the capital account
of the Company or through any other transaction referred to in section 425(a) of
the Internal  Revenue Code, then the, number of shares available for Options and
of shares  subject to any Option and the purchase  price of any share subject to
any Option  shall be  appropriately  adjusted  by the  Committee,  except to the
extent the Committee takes other action pursuant to the following paragraph.

              Notwithstanding  the  provision of any other Section of this Plan,
if the  Company  shall  not be  the  surviving  corporation  in  any  merger  or
consolidation,  or if the  Company  is to sell all or  substantially  all of its
assets, or if the ownership of more than 25 percent of the outstanding shares of
Common  Stock shall  change as the result of a  concerted  action by one or more
persons or  corporations  or if an attempt is so made to effect such a change of
ownership,  or if the Company is to be dissolved and liquidated (each such event
shall be  referred  to in this  paragraph  as a  "Corporate  Change"),  then the
Committee in its sole  discretion  may (i)  accelerate the time at which Options
then  outstanding may be exercised so that such Options may be exercised in full
on or before a date fixed by the  Committee,  (ii) provide for the  purchases of
each  Option then  outstanding  for an amount of cash equal to the excess of the
Fair Market Value of the shares  subject to such Option (which in the event of a
change in the  ownership  of more than 25 percent of the  outstanding  shares of
Common Stock shall not be less than the amount of cash and the fair market value
of other consideration  tendered for such outstanding shares) over the aggregate
purchase price of the shares subject to the Option,  (iii) make such adjustments
to Options then  outstanding as the Committee finds  appropriate to reflect such
Corporate  Change,  or (iv) cause any surviving  corporation  in such  Corporate
Change to assume  Options then  outstanding  or substitute  new options for such
outstanding Options.
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Exhibit 10(D)(1)(a)                                                  Page 7 of 8

         9. Amendment

              The Board of  Directors  of the  Company may amend the Plan in any
respect, provided,  however, no amendment of the Plan shall adversely affect any
right of any holder of an option already granted without such optionee's written
consent.

         10. Termination of Plan

              The Board of  Directors  may  terminate  the Plan at any time with
respect to any  shares of Common  Stock  that are not then  subject to  Options.
Unless terminated earlier by the Board of Directors, the Plan shall terminate on
July 6, 2010.

         11. No Right to Continued Employment

              Nothing in the Plan or in any Option granted  pursuant to the Plan
shall  confer  upon any  employee  the right to  continue  in the  employ of the
Company or restrict the right of the Company to terminate the  employment of any
employee.

         12. Rights as Stockholder

              No person shall have the rights of a  stockholder  with respect to
shares of Common Stock subject to an Option until the date of issuance,  if any,
of a stock certificate pursuant to the exercise of an Option.

         13. Regulatory Approvals and Listing

              The  Company  shall not be required  to issue any  certificate  or
certificates  for shares of Common Stock upon the exercise of an option prior to
(a) the  obtaining of any approval from any  government  agency that the Company
shall, in its sole discretion,  determine to be necessary or advisable,  (b) the
admission  of such  shares to listing on any stock  exchange on which the Common
Stock may then be listed,  and (c) the completion of any  registration  or other
qualification  of such  shares  under any state or  Federal  law or  rulings  or
regulations  of any  governmental  body  that  the  Company  shall,  in its sole
discretion, determine to be necessary or advisable.
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Exhibit 10(D)(1)(a)                                                  Page 8 of 8

         14. Construction

              The Plan  shall be  construed  in  accordance  with the law of the
State of Delaware.  With respect to any Option;  granted under the Plan that are
intended to qualify as incentive stock options as defined in Section 422A of the
Code, the terms of the Plan and of each incentive stock option granted  pursuant
to the Plan shall be construed to effectuate such intention. The Committee shall
have the power to amend the Plan to conform  with Section 422A of the Code or of
any new revenue laws of the United  States that accord  similar tax treatment to
stock option plans.

         15. Satisfaction of Tax Liabilities

              Notwithstanding  any other  provision  of this Plan,  the  Company
shall not be required to issue any  certificate  for shares of Common Stock upon
the exercise of an option unless any Federal,  state,  or local tax  withholding
obligation incurred by the Company in connection with the exercise of the Option
has been  provided  for by the  optionee  through the  delivery of a  sufficient
amount of cash to the Company or through the retention of shares of Common Stock
otherwise issuable on the exercise of the Option or the delivery of Common Stock
to the  Company  by the  optionee,  under  such  terms  as the  Committee  finds
appropriate.

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