Document:

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                                                                   Exhibit 10.21
                           REDUCING NON-REVOLVING NOTE

$4,000,000.00                                                     August 9, 2002
                                                         Walla Walla, Washington

     FOR VALUE RECEIVED, the undersigned, KEY TECHNOLOGY, INC., an Oregon
corporation (the "Borrower"), hereby promises to pay to the order of BANNER
BANK, a Washington banking corporation (the "Lender") on the Reducing
Non-Revolving Maturity Date the unpaid principal balance of all Reducing
Non-Revolving Loans made by Lender under this Note, in a maximum amount not to
exceed Four Million Dollars ($4,000,000), together with interest thereon from
the date hereof until maturity at a per annum rate equal to two percent (2%)
above the Prime Rate (changing as such Prime Rate changes); provided, however,
that after the occurrence and during the continuation of an Event of Default,
interest shall accrue at a per annum rate equal to four percent (4%) above the
Prime Rate (changing as such Prime Rate changes). Notwithstanding anything
herein to the contrary, interest shall not accrue at a rate in excess of the
maximum rate permitted by applicable law.

     Borrower further agrees as follows:

     1.  All payments of principal and interest on this Note shall be made by
paying the same in United States Dollars and in immediately available funds to
Lender in accordance with wire transfer instructions as may be provided to
Borrower from time to time, at its main office, Walla Walla, Washington, not
later than 2:00 p.m. (Walla Walla time) on the date on which such payment shall
become due. If such payment is received after 2:00 p.m., then it will be deemed
received on the next Business Day.

     2.  On each day that the aggregate outstanding principal balance of all
Reducing Non-Revolving Loans exceeds the Reducing Non-Revolving Commitment
Amount, Borrower shall repay Reducing Non-Revolving Loans in such an amount as
is necessary to reduce such aggregate outstanding principal balance to an amount
equal to or less than the Reducing Non-Revolving Commitment Amount.

     3.  Accrued but unpaid interest on each Reducing Non-Revolving Loan shall
be paid in arrears on the first Business Day of each calendar month and at the
Reducing Non-Revolving Maturity Date. Accrued interest on each Reducing
Non-Revolving Loan shall be payable on demand after the occurrence of an Event
of Default.

     4.  This Note is issued under and is subject to the terms of that certain
Loan Agreement dated as of August 9, 2002, by and between Borrower and Lender
(as amended from time to time, the "Loan Agreement"). Capitalized terms not
defined herein have the meanings set forth in the Loan Agreement.

     5.  It is expressly provided that if any of the Events of Default described
in Section 7.1(g) or Section 7.1(h) of the Loan Agreement shall occur, the
entire unpaid balance of

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the principal and interest hereunder shall be immediately due and payable in
accordance with the terms of the Loan Agreement. It is also expressly provided
that upon the occurrence of any other Event of Default, the entire remaining
unpaid balance of the principal and interest may be declared by Lender to be
immediately due and payable in accordance with the terms of the Loan Agreement.

     6.  Borrower may repay Revolving Loans at any time without penalty or
premium.

     7.  The unpaid principal balance of the Reducing Non-Revolving Loans made
hereunder shall be the total amount advanced hereunder, less the amount of the
principal payments made hereon. This Note is given to avoid the execution of an
individual note for each Reducing Non-Revolving Loan made by Lender to Borrower.
This Note evidences a reducing non-revolving credit and up to the Reducing
Non-Revolving Commitment Amount and during the Reducing Non-Revolving Commitment
Period, Borrower may borrow and prepay but not reborrow amounts prepaid. Lender
is hereby authorized to record the date and amount of each Revolving Loan it
makes hereunder and the date and amount of each payment of principal and
interest thereon on a schedule annexed hereto and constituting a part of this
Note or maintained in connection herewith. Any such recordation by Lender shall
constitute prima facie evidence of the accuracy of the information so recorded;
provided, however, that the failure to make any such recordation or any error in
any such recordation shall not affect the obligations of Borrower hereunder.

     8.  Each maker, surety, guarantor and endorser of this Note expressly
waives all notices, demands for payment, presentations for payment, notices of
intention to accelerate the maturity, protest and notice of protest.

     9.  In the event this Note is placed in the hands of an attorney for
collection, or suit is brought on the same, or the same is collected through
bankruptcy or other judicial proceedings, Borrower agrees and promises to pay
reasonable attorneys' fees and collection costs, including all out-of-pocket
expenses and the allocated costs and disbursements of internal counsel, incurred
by Lender.

     10. This Note has been executed and delivered in and shall be governed by
and construed in accordance with the laws of the State of Washington, excluding
its conflict of laws rules. Borrower hereby irrevocably submits to the
non-exclusive jurisdiction of any state or federal court sitting in the City of
Walla Walla, Walla Walla County, Washington, in any action or proceeding brought
to enforce or otherwise arising out of or relating to this Note and hereby
waives any objection to venue in any such court and any claim that such forum is
an inconvenient forum.

     BORROWER:                            KEY TECHNOLOGY, INC., an Oregon
                                          corporation

                                          By  /s/ Ted R. Sharp
                                              ----------------------------------
                                          Its C.F.O.
                                              ----------------------------------

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                                                                     EXHIBIT 4.9

                           CERTIFICATE OF DESIGNATION

                                       OF

                  SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

                         (PURSUANT TO SECTION 151 OF THE
                        DELAWARE GENERAL CORPORATION LAW)

         HEALTHETECH, INC., a corporation organized and existing under the
General Corporation Law of the State of Delaware (hereinafter called the
"Company"), hereby certifies that the following resolution was adopted by the
Board of Directors of the Corporation as required by Section 151 of the General
Corporation Law at a meeting duly called and held on DECEMBER 11, 2002:

                  RESOLVED, that pursuant to the authority granted to and vested
         in the Board of Directors of the Company in accordance with the
         provisions of its Amended and Restated Certificate of Incorporation,
         the Board of Directors hereby creates a series of Preferred Stock, par
         value $.001 per share, of the Company and hereby states the designation
         and number of shares, and fixes the relative designations and the
         powers, preferences and rights, and the qualifications, limitations and
         restrictions thereof (in addition to the provisions set forth in the
         Certificate of Incorporation of the Company, which are applicable to
         the Preferred Stock of all classes and series), as follows:

Series A Junior Participating Preferred Stock:

         SECTION 1. DESIGNATION AND AMOUNT. One million (1,000,000) shares of
Preferred Stock, $.001 par value, are designated "Series A Junior Participating
Preferred Stock" with the designations and the powers, preferences and rights,
and the qualifications, limitations and restrictions specified herein (the
"Junior Preferred Stock"). Such number of shares may be increased or decreased
by resolution of the Board of Directors; PROVIDED, that no decrease shall reduce
the number of shares of Junior Preferred Stock to a number less than the number
of shares then outstanding plus the number of shares reserved for issuance upon
the exercise of outstanding options, rights or warrants or upon the conversion
of any outstanding securities issued by the Company convertible into Junior
Preferred Stock.

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         SECTION 2. DIVIDENDS AND DISTRIBUTIONS.

                  (A) Subject to the rights of the holders of any shares of any
series of Preferred Stock (or any similar stock) ranking prior and superior to
the Junior Preferred Stock with respect to dividends, the holders of shares of
Junior Preferred Stock, in preference to the holders of Common Stock, par value
$.001 per share (the "Common Stock"), of the Company, and of any other junior
stock, shall be entitled to receive, when, as and if declared by the Board of
Directors out of funds legally available for the purpose, quarterly dividends
payable in cash on the first day of April, July, October and January in each
year (each such date being referred to herein as a "Quarterly Dividend Payment
Date"), commencing on the first Quarterly Dividend Payment Date after the first
issuance of a share or fraction of a share of Junior Preferred Stock, in an
amount per share (rounded to the nearest cent) equal to the greater of (a) $l.00
or (b) subject to the provision for adjustment hereinafter set forth, 100 times
the aggregate per share amount of all cash dividends, and 100 times the
aggregate per share amount (payable in kind) of all non-cash dividends or other
distributions, other than a dividend payable in shares of Common Stock or a
subdivision of the outstanding shares of Common Stock (by reclassification or
otherwise), declared on the Common Stock since the immediately preceding
Quarterly Dividend Payment Date or, with respect to the first Quarterly Dividend
Payment Date, since the first issuance of any share or fraction of a share of
Junior Preferred Stock. In the event the Company shall at any time declare or
pay any dividend on the Common Stock payable in shares of Common Stock, or
effect a subdivision or combination or consolidation of the outstanding shares
of Common Stock (by reclassification or otherwise than by payment of a dividend
in shares of Common Stock) into a greater or lesser number of shares of Common
Stock, then in each such case the amount to which holders of shares of Junior
Preferred Stock were entitled immediately prior to such event under clause (b)
of the preceding sentence shall be adjusted by multiplying such amount by a
fraction, the numerator of which is the number of shares of Common Stock
outstanding immediately after such event and the denominator of which is the
number of shares of Common Stock that were outstanding immediately prior to such
event.

                  (B) The Company shall declare a dividend or distribution on
the Junior Preferred Stock as provided in paragraph (A) of this Section
immediately after it declares a dividend or distribution on the Common Stock
(other than a dividend payable in shares of Common Stock); PROVIDED, that in the
event no dividend or distribution shall have been declared on the Common Stock
during the period between any Quarterly Dividend Payment Date and the next
subsequent Quarterly Dividend Payment Date, a dividend of $1.00 per share on the
Junior Preferred Stock shall nevertheless be payable on such subsequent
Quarterly Dividend Payment Date.

                  (C) Dividends shall begin to accrue and be cumulative on
outstanding shares of Junior Preferred Stock from the Quarterly Dividend Payment
Date next preceding the date of issue of such shares, unless the date of issue
of such shares is prior to the record date for the first Quarterly Dividend
Payment Date, in which case dividends on such shares shall begin to accrue from
the date of issue of such shares, or unless the date of issue is a Quarterly
Dividend Payment Date or is a date after the record date for the determination
of holders of shares of Junior Preferred Stock entitled to receive a quarterly
dividend and before such Quarterly Dividend Payment Date, in either of which
events such dividends shall begin to accrue and be cumulative from such
Quarterly Dividend Payment Date. Accrued but unpaid dividends shall not bear

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interest. Dividends paid on the shares of Junior Preferred Stock in an amount
less than the total amount of such dividends at the time accrued and payable on
such shares shall be allocated pro rata on a share-by-share basis among all such
shares at the time outstanding. The Board of Directors may fix a record date for
the determination of holders of shares of Junior Preferred Stock entitled to
receive payment of a dividend or distribution declared thereon, which record
date shall be not more than 60 days prior to the date fixed for the payment
thereof.

         SECTION 3. VOTING RIGHTS. The holders of shares of Junior Preferred
Stock shall have the following voting rights:

                  (A) Subject to the provision for adjustment hereinafter set
forth, each share of Junior Preferred Stock shall entitle the holder thereof to
100 votes on all matters submitted to a vote of the stockholders of the Company.
In the event the Company shall at any time declare or pay any dividend on the
Common Stock payable in shares of Common Stock, or effect a subdivision or
combination or consolidation of the outstanding shares of Common Stock (by
reclassification or otherwise than by payment of a dividend in shares of Common
Stock) into a greater or lesser number of shares of Common Stock, then in each
such case the number of votes per share to which holders of shares of Junior
Preferred Stock were entitled immediately prior to such event shall be adjusted
by multiplying such number by a fraction, the numerator of which is the number
of shares of Common Stock outstanding immediately after such event and the
denominator of which is the number of shares of Common Stock that were
outstanding immediately prior to such event.

                  (B) Except as otherwise provided herein, in any other
Certificate of Designation creating a series of Preferred Stock or any similar
stock, or by law, the holders of shares of Junior Preferred Stock and the
holders of shares of Common Stock and any other capital stock of the Company
having general voting rights shall vote together as one class on all matters
submitted to a vote of stockholders of the Company.

                  (C) Except as set forth herein, or as otherwise provided by
law, holders of Junior Preferred Stock shall have no special voting rights and
their consent shall not be required (except to the extent they are entitled to
vote with holders of Common Stock as set forth herein) for taking any corporate
action.

         SECTION 4. CERTAIN RESTRICTIONS.

                  (A) Whenever quarterly dividends or other dividends or
distributions payable on the Junior Preferred Stock as provided in Section 2 are
in arrears, thereafter and until all accrued and unpaid dividends and
distributions, whether or not declared, on shares of Junior Preferred Stock
outstanding shall have been paid in full, the Company shall not:

                           (i) declare or pay dividends, or make any other
distributions, on any shares of stock ranking junior (either as to dividends or
upon liquidation, dissolution or winding up) to the Junior Preferred Stock;

                           (ii) declare or pay dividends, or make any other
distributions, on any shares of stock ranking on a parity (either as to
dividends or upon liquidation, dissolution or winding up) with the Junior
Preferred Stock, except dividends paid ratably on the Junior

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Preferred Stock and all such parity stock on which dividends are payable or in
arrears in proportion to the total amounts to which the holders of all such
shares are then entitled;

                           (iii) redeem or purchase or otherwise acquire for
consideration shares of any stock ranking junior (either as to dividends or upon
liquidation, dissolution or winding up) to the Junior Preferred Stock, provided
that the Company may at any time redeem, purchase or otherwise acquire shares of
any such junior stock in exchange for shares of any stock of the Company ranking
junior (either as to dividends or upon dissolution, liquidation or winding up)
to the Junior Preferred Stock; or

                           (iv) redeem or purchase or otherwise acquire for
consideration any shares of Junior Preferred Stock, or any shares of stock
ranking on a parity (either as to dividends or upon liquidation, dissolution or
winding up) with the Junior Preferred Stock, except in accordance with a
purchase offer made in writing or by publication (as determined by the Board of
Directors) to all holders of such shares upon such terms as the Board of
Directors, after consideration of the respective annual dividend rates and other
relative rights and preferences of the respective series and classes, shall
determine in good faith will result in fair and equitable treatment among the
respective series or classes.

                  (B) The Company shall not permit any subsidiary of the Company
to purchase or otherwise acquire for consideration any shares of stock of the
Company unless the Company could, under paragraph (A) of this Section 4,
purchase or otherwise acquire such shares at such time and in such manner.

         SECTION 5. REACQUIRED SHARES. Any shares of Junior Preferred Stock
purchased or otherwise acquired by the Company in any manner whatsoever shall be
retired and cancelled promptly after the acquisition thereof. All such shares
shall upon their cancellation become authorized but unissued shares of Preferred
Stock and may be reissued as part of a new series of Preferred Stock subject to
the conditions and restrictions on issuance set forth herein, in the Amended and
Restated Certificate of Incorporation, or in any other Certificate of
Designation creating a series of Preferred Stock or any similar stock or as
otherwise required by law.

         SECTION 6. LIQUIDATION, DISSOLUTION OR WINDING UP. Upon any
liquidation, dissolution or winding up of the Company, no distribution shall be
made (1) to the holders of shares of stock ranking junior (either as to
dividends or upon liquidation, dissolution or winding up) to the Junior
Preferred Stock unless, prior thereto, the holders of shares of Junior Preferred
Stock shall have received $100 per share, plus an amount equal to accrued and
unpaid dividends and distributions thereon, whether or not declared, to the date
of such payment, provided that the holders of shares of Junior Preferred Stock
shall be entitled to receive an aggregate amount per share, subject to the
provision for adjustment hereinafter set forth, equal to 100 times the aggregate
amount to be distributed per share to holders of shares of Common Stock, or (2)
to the holders of shares of stock ranking on a parity (either as to dividends or
upon liquidation, dissolution or winding up) with the Junior Preferred Stock,
except distributions made ratably on the Junior Preferred Stock and all such
parity stock in proportion to the total amounts to which the holders of all such
shares are entitled upon such liquidation, dissolution or winding up. In the
event the Company shall at any time declare or pay any dividend on the Common
Stock payable in shares of Common Stock, or effect a subdivision or combination
or consolidation of

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the outstanding shares of Common Stock (by reclassification or otherwise than by
payment of a dividend in shares of Common Stock) into a greater or lesser number
of shares of Common Stock, then in each such case the aggregate amount to which
holders of shares of Junior Preferred Stock were entitled immediately prior to
such event under the proviso in clause (1) of the preceding sentence shall be
adjusted by multiplying such amount by a fraction the numerator of which is the
number of shares of Common Stock outstanding immediately after such event and
the denominator of which is the number of shares of Common Stock that were
outstanding immediately prior to such event.

         SECTION 7. CONSOLIDATION, MERGER, ETC. In case the Company shall enter
into any consolidation, merger, combination or other transaction in which the
shares of Common Stock are exchanged for or changed into other stock or
securities, cash and/or any other property, then in any such case each share of
Junior Preferred Stock shall at the same time be similarly exchanged or changed
into an amount per share, subject to the provision for adjustment hereinafter
set forth, equal to 100 times the aggregate amount of stock, securities, cash
and/or any other property (payable in kind), as the case may be, into which or
for which each share of Common Stock is changed or exchanged. In the event the
Company shall at any time declare or pay any dividend on the Common Stock
payable in shares of Common Stock, or effect a subdivision or combination or
consolidation of the outstanding shares of Common Stock (by reclassification or
otherwise than by payment of a dividend in shares of Common Stock) into a
greater or lesser number of shares of Common Stock, then in each such case the
amount set forth in the preceding sentence with respect to the exchange or
change of shares of Junior Preferred Stock shall be adjusted by multiplying such
amount by a fraction, the numerator of which is the number of shares of Common
Stock outstanding immediately after such event and the denominator of which is
the number of shares of Common Stock that were outstanding immediately prior to
such event.

         SECTION 8. NO REDEMPTION. The shares of Junior Preferred Stock shall
not be redeemable.

         SECTION 9. RANK. The Junior Preferred Stock shall rank, with respect to
the payment of dividends and the distribution of assets, junior to all series of
any other class of the Company's Preferred Stock.

         SECTION 10. AMENDMENT. The Amended and Restated Certificate of
Incorporation of the Company shall not be amended in any manner which would
materially alter or change the powers, preferences or special rights of the
Junior Preferred Stock so as to affect them adversely without the affirmative
vote of the holders of at least two-thirds of the outstanding shares of Junior
Preferred Stock, voting together as a single class.

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         IN WITNESS WHEREOF, the undersigned has executed this certificate as of
December 11, 2002.

                                       /s/ Stephen E. Webb
                                       --------------------------------------
                                       Stephen E. Webb
                                       Chief Financial Officer

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