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                                                                 EXHIBIT 10.17.9

WELLS FARGO                                      RESOLVING LINE OF CREDIT NOTE

4,000,000.00                                          Oakland, California
                                                      July 1, 2003

FOR VALUE RECEIVED, the undersigned CHOLESTECH CORPORATION ("Borrower") promises
to pay to the order of WELLS FARGO BANK, NATIONAL ASSOCIATION ("Bank") at its
office at EAST BAY RCBO, ONE KAISER PLAZA, SUITE #850, OAKLAND, CA 94612, or at
such other place as the holder hereof may designate, in lawful money of the
United States of America and in immediately available funds, the principal sum
of $4,000,000.00, or so much thereof as may be advanced and be outstanding, with
interest thereon, to be computed on each advance from the date of its
disbursement as set forth herein.

1.       DEFININTIONS:

         As used herein, the following terms hall have the meanings set forth
         after each, and any other term defined in this Note shall have the
         meaning set forth at the place defined:

1.1      "Business Day" means any day except a Saturday, Sunday or any other day
         on which commercial banks in California are authorized or required by
         state law to close.

1.2      "Fixed Rate Term" means a period commencing on a Business Day and
         continuing for 1,2,3 OR 6 MONTHS, designated by Borrower, during which
         all or a portion of the outstanding principal balance of this Note
         bears interest determined in relation to LIBOR; provided however, that
         no Fixed Rate Term may be selected for a principal amount less that
         $100,000.00; and provided further, that no Fixed Rate Term shall extend
         beyond the scheduled maturity date hereof. If any Fixed Rate Term would
         end on a day which is not a Business Day, then such Fixed Rate Term
         shall be extended to the next succeeding Business Day.

1.3      "LIBOR" means the rate per annum (rounded upward, if necessary, to the
         nearest whole 1/8 if 1%) determined by dividing Base LIBOR by a
         percentage equal to 100% less any LIBOR Reserve Percentage.

         a)       "Base LIBOR" means the rate per annum for United States dollar
         deposits quoted by Bank as the Inter-Bank Market Offered Rate, with the
         understanding that such rate is quoted by Bank for the purpose of
         calculating effective rates of interest for loans making reference
         thereto, on the first day of the Fixed Rate Term for delivery of funds
         on said date for a period of time approximately equal to the number of
         days is such Fixed Rate Term applies. Borrower understands and agrees
         that Bank may base its Inter-Bank Market Offered Rate upon such offers
         or other market indicators of the Inter-Bank Market as Bank in its
         discretion deems appropriate including, but not limited to, the rate
         offered for U.S. dollar deposits on the London Inter-Bank Market.

         b)       "LIBOR Reserve Percentage" means the reserve percentage
         prescribed by the Board of Governors of the Federal Reserve System (or
         any successor) for "Eurocurrency Liabilities" (as defined in Regulation
         D of the Federal Reserve Board, as amended), adjusted by Bank for
         expected changes in such reserve percentage during the applicable Fixed
         Rate Term.

1.4      "Prime Rate" means at any time the rate of interest most recently
         announced within Bank at its principal office as its Prime Rate, with
         the understanding that the Prime Rate is one of Bank's base rates and
         serves as the basis upon which effective rates of interest are
         calculated for those loans making reference thereto, and is evidenced
         by the recording thereof after its announcement in such internal
         publications as Bank may designate.

PROMNOTE. CA (01/03)
REVOLVING LINE OF CREDIT NOTE
02677, #1646642865

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WELLS FARGO                                      RESOLVING LINE OF CREDIT NOTE

2.       INTEREST:

2.1      Interest. The outstanding balance of this Note shall bear interest
         (computed on the basis of a 360-day year, actual days elapsed) either
         (a) at a fluctuating rate per annum .50000% below the Prime Rate in
         effect from time to time, or (b) at a fixed rate per annum determined
         by Bank to be 1.75000% above LIBOR in effect on the first day of the
         applicable Fixed Rate Term. When interest is determined in relation to
         the Prime Rate, each change in the rate of interest hereunder shall
         become effective on the date each Prime Rate change is announced within
         Bank. With respect to each LIBOR selection option selected hereunder,
         Bank is hereby authorized to note the date, principal amount, interest
         rate and Fixed Rate Term applicable thereto and any payments made
         thereon on Bank's books and records (either manually or by electronic
         entry) and/or on any schedule attached to this Note, which notations
         shall be prima facie evidence of the accuracy of the information noted.

2.2      Selection of Interest Rate Options. At any time any portion of this
         Note bears interest determined in relation to LIBOR, it may be
         continued by Borrower at the end of the Fixed Rate Term applicable
         thereto so that all or a portion thereof bears interest determined in
         relation to the Prime Rate or to LIBOR for a new Fixed Rate Term
         designated by Borrower. At any time any portion of this Note bears
         interest determined in relation to the Prime Rate, Borrower may convert
         all or a portion thereof so that is bears interest determined in
         relation to LIBOR for a Fixed Rate Term designated by Borrower. At such
         time as Borrower requests an advance hereunder or wishes to select a
         LIBOR option for all or a portion of the outstanding principal balance
         hereof, and at the end of each Fixed Rate Term, Borrower shall give
         Bank notice specifying (a) the interest rate option selected by
         Borrower; (b) the principal amount subject thereto; and (c) for each
         LIBOR selection, the length of the applicable Fixed Rate Term. Any such
         notice may be given by telephone (or such other electronic method as
         Bank may permit) so long as, with respect to each LIBOR selection, (i)
         if requested by Bank, Borrower provides to Bank written confirmation
         thereof not later than 3 Business Days after such notice is given, and
         (ii) such notice is given to Bank prior to 10:00 a.m. on the first day
         of the Fixed Rate Term, or at a day later during any Business Day if
         Bank, at it's sole option but without obligation to do so, accepts
         Borrower's notice and quotes a fixed rate to Borrower. If Borrower does
         not immediately accept a fixed rate when quoted by Bank, the quoted
         rate shall expire and any subsequent LIBOR request from Borrower shall
         be subject to a redetermination by Bank of the applicable fixed rate.
         If no specific designation if interest is made at the time any advance
         is requested hereunder or at the end of any Fixed Rate Term, Borrower
         shall be deemed to have made a Prime Rate interest selection for such
         advance or the principal amount to which such Fixed Rate Term applied.

2.3      Taxes and Regulatory Costs. Borrower shall pay to Bank immediately upon
         demand, in addition to any other amounts due or to become hereunder,
         any and all (a) withholdings, interest equalization taxes, stamp taxes
         or other taxes (except income and franchise taxes) imposed by any
         domestic or foreign governmental authority and related in any manner to
         LIBOR, and (b) future, supplemental, emergency or other changes in the
         LIBOR Reserve Percentage, assessment rates imposes by the Federal
         Deposit Insurance Corporation, or similar requirements or costs imposed
         by any domestic or foreign governmental authority or resulting from
         compliance by Bank with any respect or directive (whether or not having
         the force of law) from any central bank or other governmental authority
         and related in any manner to LIBOR to the extent they are not included
         in the calculation of LIBOR. In determining which of the foregoing are
         attributable to any LIBOR option available to Borrower hereunder, any
         reasonable allocation made by Bank among its operations shall be
         conclusive and binding upon Borrower.

2.4      Payment of Interest. Interest accrued on this Note shall be payable on
         the 1st day of each MONTH, commencing AUGUST 1, 2003.

2.5      Default Interest. From and after the maturity date of this Note, or
         such earlier date as all principal owing hereunder becomes due and
         payable by acceleration or otherwise, the outstanding principal balance
         of this Note shall bear interest until pain in full at an increased
         rate per annum (computed on the basis of a 360-day year, actual days
         elapsed) equal to 4% above the rate of interest from time to time
         applicable to this Note.

PROMNOTE. CA (01/03)
REVOLVING LINE OF CREDIT NOTE
02677, #1646642865

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WELLS FARGO                                      RESOLVING LINE OF CREDIT NOTE

3.       BORROWING AND REPAYMENT:

3.1      Borrowing and Repayment: Borrower may from time to time during the term
         of this Note borrow, partially or wholly repay its outstanding
         borrowings, and reborrow, subject to all of the limitations, terms and
         conditions of this Note and of any document executed in connection with
         or governing this Note; provided however, that the total outstanding
         borrowings under this Note shall not at any time exceed the principal
         amount stated above. The unpaid principal balance of this obligation at
         any time shall be the total amounts advanced hereunder by the holder
         hereof less the amount of principal payments made hereon by or for any
         balance of this Note shall be due and payable in full on SEPTEMBER 1,
         2005.

3.2      Advances: Advances hereunder, to the total amount of the principal sum
         available hereunder, may be made by the holder at the oral or written
         consent of (a) WARREN PINCKERT OR WILLIAM W. BURKE, any one acting
         alone, who are authorized to request advances and direct the
         disposition of any advances until written notice of the revocation of
         such authority is received by the holder at the office designated
         above, or (b) any person, with respect to advances deposited to the
         credit of any deposit account of any Borrower, which advances, when so
         deposited, shall be conclusively presumed to have been made to or for
         the benefit of each Borrower regardless of the fact that persons other
         than those authorized to request advances may have authority to draw
         against such account. The holder shall have no obligation to determine
         whether any person requesting an advance is or has been authorized by
         any Borrower.

3.3      Application of Payments: Each payment made on this Note shall be
         credited first, to any interest then due and second, to the outstanding
         principal balance hereof. All payments credited to principal shall be
         applied first, to the outstanding principal balance of this Note which
         bears interest determined in relation to the Prime Rate, if any, and
         second, to the outstanding principal balance of this Note which bears
         interest determined in relation to LIBOR, with such payments applied to
         the oldest Fixed Rate Term first.

4.       PREPAYMENT:

4.1      Prime Rate: Borrower may prepay principal on any portion of this Note
         which bears interest determined in relation to the Prime Rate at any
         time, in any amount and without penalty.

4.2      LIBOR: Borrower may prepay principal on any portion of this Note which
         bears interest determined in relation to the LIBOR at any time and in
         the minimum amount of $100,000.00; provided however, that if the
         outstanding principal balance of such portion of this Note is less than
         said amount, the minimum prepayment amount shall be the entire
         outstanding principal balance thereof. In consideration of Bank
         providing this prepayment option to Borrower, or if any such portion of
         this Note shall become due and payable at any time prior to the last
         day of the Fixed Rate Term applicable thereto by acceleration or
         otherwise, Borrower shall pay to Bank immediately upon demand a fee
         which is the sum of the discounted money differences for each month
         from the month of prepayment through the month in which such Fixed Rate
         Term matures, calculated ass follows for each such month:

                  a)       Determine the amount of interest which would have
                           accrued each month on the amount prepaid at the
                           interest rate applicable to such amount had it
                           remained outstanding until the last day of the Fixed
                           Rate Term applicable thereto.

                  b)       Subtract from the amount determined in (a) above the
                           amount of interest which would have accrued for the
                           same month on the amount prepaid for the remaining
                           term of such Fixed Rate Term at LIBOR in effect on
                           the date of prepayment of new loans made for such
                           term and in a principal amount equal to the amount
                           prepaid.

                  c)       If the result obtained in (b) for any month is
                           greater than zero, discount that difference by LIBOR
                           used in (b) above.

PROMNOTE. CA (01/03)
REVOLVING LINE OF CREDIT NOTE
02677, #1646642865

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WELLS FARGO                                      RESOLVING LINE OF CREDIT NOTE

3.1      Borrowing and Repayment. Borrower may form time to time during the term
         of this Note borrow, partially or wholly repay its outstanding
         borrowings, and reborrow, subject to all of the limitations, terms and
         conditions of this Note and of any document executed in connection with
         or governing this Note; provided however, that the total outstanding
         borrowings under this Note shall not at any time exceed the principal
         amount stated above. The unpaid principal balance of this obligation at
         any time shall be the total amounts advanced hereunder by the holder
         hereof les the amount of principal payments made hereon by or foe any
         Borrower, which balance may be endorsed hereon from time to time by the
         holder. The outstanding principal balance of this Note shall be due and
         payable in full on SEPTEMBER 1, 2005.

3.2      Advances: Advances hereunder, to the total amount of the principal sum
         available hereunder, may be made by the holder at the oral or written
         request of (a) WARREN PINCKERT OR WILLIAM W. BURKE, any one acting
         alone, who are authorized to request advances and direct the
         disposition of any advances until written notice of the revocation of
         such authority is received by the holder at the office designated
         above, or (b) any person, with respect to advances deposited to the
         credit of any deposit account of any Borrower, which advances, when so
         deposited, shall be conclusively presumed to have been made to or for
         the benefit of each Borrower regardless of the fact that persons other
         than those authorized to request advances may have authority to draw
         against such account. The holder shall have no obligation to determine
         whether any person requesting an advance is or has been authorized by
         any Borrower.

3.3      Application of Payments: Each payment made on this Note shall be
         credited first, to any interest then due and second, to the outstanding
         principal balance hereof. All payments credited to principal shall be
         applied first, to the outstanding principal balance of this Note which
         bears interest determined in relation to the Prime Rate, if any, and
         second, to the outstanding principal balance of this Note which bears
         interest determined in relation to LIBOR, with such payments applied to
         the oldest Fixed Rate Term first.

4.       PREPAYMENT:

4.1      Prime Rate: Borrower may prepay principal on any portion of this Note
         which bears interest determined in relation to the Prime Rate at any
         time, in any amount and without penalty.

4.2      LIBOR: Borrower may prepay principal on any portion of this Note which
         bears interest determined in relation to LIBOR at any time and in the
         minimum amount of $100,000.00; provided however, that if the
         outstanding principal balance of such portion of this Note is less than
         said amount, the minimum prepayment amount shall be the entire
         outstanding principal balance thereof. In consideration of Bank
         providing this prepayment option to Borrower, of if any such portion of
         this Note shall become due and payable at any time prior to the last
         day of the Fixed Rate Term applicable thereto by acceleration or
         otherwise, Borrower shall pay to Bank immediately upon demand a fee
         which is the sum of the discounted monthly differences for each month
         from the month of prepayment through the month in which such Fixed Rate
         Term matures, calculated as follows for each such month:

                  a)       Determine the amount of interest which would have
                           accrued each month on the amount prepaid at the
                           interest rate applicable to such amount had it
                           remained outstanding until the last day of the Fixed
                           Rate Term applicable thereto.

                  b)       Subtract from the amount determined in (a) above the
                           amount of interest which would have accrued for the
                           same month on the amount prepaid for the remaining
                           term of such Fixed Rate Term at LIBOR in effect on
                           the date of prepayment of new loans made for such
                           term and in a principal amount equal to the amount
                           prepaid.

                  c)       If the result obtained in (b) for any month is
                           greater than zero, discount that difference by LIBOR
                           used in (b) above.

PROMNOTE. CA (01/03)
REVOLVING LINE OF CREDIT NOTE
02677, #1646642865

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WELLS FARGO                                      RESOLVING LINE OF CREDIT NOTE

Each Borrower acknowledges that prepayment of such amount may result in Bank
incurring additional costs, expenses and/or liabilities, and that it is
difficult to ascertain the full extent of such costs, expenses and/or
liabilities. Each Borrower, therefore, agrees to pay the above-described
prepayment fee and agrees that said amount represents a reasonable estimate of
the prepayment costs, expenses and/or liabilities of Bank. If Borrower fails to
pay any prepayment fee when due, the amount of such prepayment fee shall
thereafter bear interest until paid at a rate per annum 2.000% above the Prime
Rate in effect from time to time (computed on the basis of a 360-day year,
actual days elapsed). Each change in the rate of interest on any such past due
prepayment fee shall become effective on the date each Prime Rate change is
announced within Bank.

5.       EVENTS OF DEFAULT:

         The occurrence of any of the following shall constitute an "Event of
         Default" under this Note:

5.1      The failure to pay any principal, interest, fees or other charges when
         due hereunder or under any contract, instrument or document executed in
         connection with this Note.

5.2      The filing of a petition by or against any Borrower, any guarantor of
         this Note or any general partner or joint venturer in any Borrower
         which is a partnership or a joint venture (with each such guarantor,
         general partner and/or joint venturer referred to herein as a "Third
         Party Obligor") under any provisions of the Bankruptcy Reform Act,
         Title 11 of the United States Code, as amended or recodified from time
         to time, or under any similar or other law relating to bankruptcy,
         insolvency, reorganization or other relief for debtors; the appointment
         of a receiver, trustee, custodian or liquidator of or for any part of
         the assets or property of any Borrower or Third Party Obligor; any
         Borrower of Third Party Obligor becomes insolvent, makes a general
         assignment for the benefit of creditors of is generally not paying its
         debts as they become due; or any attachment or like levy on any
         property of any Borrower of Third Party Obligator.

5.3      The death or incapacity of any individual Borrower of Third Party
         Obligor, or the dissolution or liquidation of any Borrower of Third
         Party Obligor which is a corporation, partnership, joint venture or
         other type of entity.

5.4      Any default in the payment or performance of any obligation, or any
         defined event of default, under any provisions of any contract,
         instrument or document pursuant to which any Borrower of Third Party
         Obligor has incurred any obligation for borrowed money, any purchase
         obligation, or any other liability of any kind to any person or entity,
         including the holder.

5.5      Any financial statement provided by any Borrower of Third Party Obligor
         to Bank proves to be incorrect, false or misleading in any material
         respect.

5.6      Any sale or transfer of all of a substantial or material part of the
         assets of any Borrower of Third Party Obligor other than in the
         ordinary course of its business.

5.7      Any violation or breach of any provision of, or any defined event of
         default under, any addendum to this Note or any loan agreement,
         guaranty, security agreement, deed of trust, mortgage or other document
         executed in connection with or securing this Note.

6.       MISCELLANEOUS:

6.1      Remedies: Upon the occurrence of any Event of Default, the holder of
         this Note, at the holder's option, may declare all sums of principal
         and interest outstanding hereunder to be immediately due and payable
         without presentment, demand, notice of nonperformance, notice of
         protest, protest of notice of dishonor, all of which are expressly
         waived by each Borrower, and the obligation, if any, of the holder to
         extend any further credit

PROMNOTE. CA (01/03)
REVOLVING LINE OF CREDIT NOTE
02677, #1646642865

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WELLS FARGO                                      RESOLVING LINE OF CREDIT NOTE

         hereunder shall immediately cease and terminate. Each Borrower shall
         pay to the holder immediately upon demand the full amount of all
         payments, advances, charges, costs and expenses, including reasonable
         attorney's fees (to include outside counsel fees and all allocated
         costs of the holder's in-house counsel), expended or incurred by the
         holder in connection with the enforcement of the holder's rights and/or
         the collection of any amounts which become due to the holder under this
         Note, and the prosecution or defense of any action in any way related
         to this Note, including without limitation, any action for declaratory
         relief, whether incurred at the trial or appellate level, in an
         arbitration proceeding or otherwise, and including any of the foregoing
         incurred in connection with any bankruptcy proceeding (including
         without limitation, any adversary proceeding, contested matter or
         motion brought by Bank or any other person) relating to any Borrower or
         any other person or entity.

6.2      Obligations Joint and Several. Should more than one person or entity
         sign this Note as a Borrower, the obligations of each such Borrower
         shall be joint and several.

6.3      Governing Law. This Note shall be governed by and construed in
         accordance with the laws of the State of California.

IN WITNESS WHEREOF, the undersigned has executed this Note as of the date first
written above.

Cholestech Corporation

By: /s/ William W. Burke
    --------------------
    William W. Burke, Chief Financial Officer

PROMNOTE. CA (01/03)
REVOLVING LINE OF CREDIT NOTE
02677, #1646642865

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