UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, DC 20549
              ----------------------------------------------------

                                    FORM 11-K

                                  ANNUAL REPORT
                        PURSUANT TO SECTION 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


(mark one)
[ X ] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE
      ACT OF 1934 For the fiscal year ended December 31, 2001

                                       OR

[   ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE
      ACT OF 1934

                          Commission file number 1-8002


      A. Full title of the plan and address of the plan, if different from that
         of the issuer named below:

         Thermo Electron Corporation Choice Plan

      B. Name of issuer of the securities held pursuant to the plan and the
         address of the principal executive office:

         Thermo Electron Corporation
         81 Wyman Street
         Waltham, Massachusetts 02454-9046



                    THERMO ELECTRON CORPORATION CHOICE PLAN

                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the trustees (or other persons who administer the employee benefit plan) have
duly caused this annual report to be signed by the undersigned hereunto duly
authorized.


                            THERMO ELECTRON CORPORATION CHOICE PLAN

                            By:  Thermo Electron Corporation, Plan Administrator


                            By:  /s/ Kenneth J. Apicerno
                                 -----------------------------------------------
                                 Kenneth J. Apicerno
                                 Treasurer


Date:  July 1, 2002



                    Thermo Electron Corporation Choice Plan

                              FINANCIAL STATEMENTS
                                       AND
                            SUPPLEMENTARY INFORMATION

                 FOR THE YEARS ENDED DECEMBER 31, 2001 AND 2000

                                      WITH

                          INDEPENDENT AUDITORS' REPORTS






                     Thermo Electron Corporation Choice Plan

                                Table of Contents



                                                                                                   

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

                                                                                                  Page Number

Independent Auditors' Reports                                                                        1 - 2

Financial Statements:

   Statements of Net Assets Available for Benefits                                                     3

   Statement of Changes in Net Assets Available for Benefits                                           4

   Notes to Financial Statements                                                                     5 - 8

Supplementary Information:

   Schedule H, Part IV, Item 4(i) - Form 5500 - Schedule of Assets Held for
     Investment Purposes at End of Year, December 31, 2001                                             9






                          INDEPENDENT AUDITOR'S REPORT


To the Pension Committee of
Thermo Electron Corporation Choice Plan
Waltham, Massachusetts


We have audited the accompanying statement of net assets available for benefits
of the Thermo Electron Corporation Choice Plan (the Plan) as of December 31,
2001, and the related statement of changes in net assets available for benefits
for the year ended December 31, 2001. These financial statements are the
responsibility of the Plan's management. Our responsibility is to express an
opinion on these financial statements based on our audit.

We conducted our audit in accordance with auditing standards generally accepted
in the United States of America. Those standards require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. An audit also includes assessing the accounting principles used and
significant estimates made by the Plan's management, as well as evaluating the
overall financial statement presentation. We believe that our audit provides a
reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the net assets available for benefits of the Plan as of
December 31, 2001 and the changes in its net assets available for benefits for
the year ended December 31, 2001 in conformity with accounting principles
generally accepted in the United States of America.

Our audit was performed for the purpose of forming an opinion on the basic 2001
financial statements taken as a whole. The accompanying 2001 supplementary
schedule of assets held for investment purposes at end of year is presented for
the purpose of additional analysis and is not a required part of the basic 2001
financial statements, but is supplementary information required by the
Department of Labor's Rules and Regulations for Reporting and Disclosure under
the Employee Retirement Income Security Act of 1974. This supplementary schedule
is the responsibility of the Plan's management. The supplementary schedule has
been subjected to the auditing procedures applied in the audit of the basic 2001
financial statements and, in our opinion, is fairly stated, in all material
respects, in relation to the basic 2001 financial statements taken as a whole.


CARLIN, CHARRON, & ROSEN LLP


Worcester, Massachusetts
June 27, 2002




                                       -1-





Report of Independent Public Accountants


To the Pension Committee of
Thermo Electron Corporation:

We have audited the accompanying statement of net assets available for plan
benefits of the Thermo Electron Corporation Choice Plan (the Plan) as of
December 31, 2000. This financial statement is the responsibility of the Plan's
management. Our responsibility is to express an opinion on this financial
statement based on our audit.

We conducted our audit in accordance with auditing standards generally accepted
in the United States. Those standards require that we plan and perform the audit
to obtain reasonable assurance about whether the financial statement is free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statement. An audit also
includes assessing the accounting principles used and significant estimates made
by the Plan's management, as well as evaluating the overall financial statement
presentation. We believe that our audit provides a reasonable basis for our
opinion.

In our opinion, the financial statement referred to above presents fairly, in
all material respects, the net assets available for plan benefits of the Plan as
of December 31, 2000 in conformity with accounting principles generally accepted
in the United States.


ARTHUR ANDERSEN LLP


Boston, Massachusetts
May 29, 2001




                                       -2-





                     THERMO ELECTRON CORPORATION CHOICE PLAN

                 Statements of Net Assets Available for Benefits
                           December 31, 2001 and 2000



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

                                                                                     2001                  2000
Assets
     Cash and cash equivalents                                                   $    762,879         $  1,191,085

     Investments, at fair value                                                   281,948,235          317,611,354

     Employer Securities
         Thermo Electron Stock (Employer Stock)                                    15,216,739           24,227,537

     Loans to participants                                                          4,569,758            7,027,217
                                                                                 ------------         ------------
                                                                                  302,497,611          350,057,193
                                                                                 ------------         ------------
     Receivables
         Employer contributions                                                       674,807              702,313
         Participant contributions                                                    901,560            1,505,285
                                                                                 ------------         ------------
                                                                                    1,576,367            2,207,598
                                                                                 ------------         ------------

Total assets                                                                     $304,073,978         $352,264,791
                                                                                 ============         ============

Net assets available for benefits                                                $304,073,978         $352,264,791
                                                                                 ============         ============


            See independent auditors' reports and accompanying notes
                             to financial statements

                                       -3-




                     THERMO ELECTRON CORPORATION CHOICE PLAN

            Statement of Changes in Net Assets Available for Benefits
                      For the Year Ended December 31, 2001



                                                                                                        

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

Additions to net assets attributed to:
     Realized and unrealized losses on investments                                                    $(28,759,262)
     Interest and dividends                                                                              8,057,044
     Transfer in                                                                                        75,644,603
     Employer contributions                                                                              8,077,541
     Participant contributions                                                                          16,518,007
     Participant rollovers                                                                               1,343,500
                                                                                                      ------------

Total additions                                                                                         80,881,433
                                                                                                      ------------

Deductions from net assets attributed to:
     Benefits paid to participants                                                                      26,453,151
     Transfer out                                                                                      102,599,344
     Administrative expenses                                                                                19,751
                                                                                                      ------------

Total deductions                                                                                       129,072,246
                                                                                                      ------------

Net decrease                                                                                           (48,190,813)

Net assets available for benefits
     Beginning of year                                                                                 352,264,791
                                                                                                      ------------

     End of year                                                                                      $304,073,978
                                                                                                      ============


            See independent auditors' reports and accompanying notes
                             to financial statements

                                       -4-




                     THERMO ELECTRON CORPORATION CHOICE PLAN

                          Notes to Financial Statements
                 For the Years Ended December 31, 2001 and 2000

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

1.   Plan Description

     The following description of the Thermo Electron Corporation Choice Plan
     (the Plan) provides only general information. Participants should refer to
     the Plan agreement for a more complete description of the Plan's
     provisions.

     General
         The Thermo Electron Corporation Choice Plan (the Plan) is a defined
         contribution plan. The Plan covers eligible full-time and part-time
         employees of Thermo Electron Corporation and subsidiaries (the Company)
         who have completed two months of service. The Plan is subject to the
         provisions of the Employee Retirement Income Security Act of 1974
         (ERISA).

     Contributions
         Each year participants may contribute up to 15 percent of pre-tax
         annual compensation or $10,500, as defined in the Plan. Participants
         may also contribute amounts representing distributions from other
         qualified defined benefit or defined contribution plans. Beginning on
         the first day of the calendar quarter following completion of one year
         of service, the Company makes non-discretionary matching contributions
         equal to 200 percent of the first 2 percent and 25 percent of the next
         2 percent of base compensation that a participant contributes to the
         Plan. Participants direct the investment of their contributions and the
         Company match into various investment options offered by the Plan. The
         Plan currently offers the Company's common stock and seventeen mutual
         funds as investment options for participants. Contributions are subject
         to certain limitations.

     Participant Accounts
         Each participant's account is credited with the participant's
         contributions and allocations of the Company's contribution and plan
         earnings, and charged with an allocation of administrative expenses.
         Allocations are based on participant earnings or account balances, as
         defined. The benefit to which a participant is entitled is the benefit
         that can be provided from the participant's vested account.

     Vesting
         Participants are immediately vested in their voluntary contributions
         plus actual earning thereon. Vesting in the Company matching
         contributions plus actual earnings thereon is based on years of
         service. A participant is 100 percent vested after three years of
         credited service.

         A participant is automatically 100 percent vested in all contributions
         upon the attainment of age 65, upon becoming permanently disabled, or
         upon death while still an active participant.


                                       -5-




                     THERMO ELECTRON CORPORATION CHOICE PLAN

                          Notes to Financial Statements
                 For the Years Ended December 31, 2001 and 2000

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

1.   Plan Description (Continued)

     Vesting (Continued)
         Due to the number of divestitures in 2001 and 2000, the Company may
         have experienced partial terminations. As a result, the Company has
         taken a conservative approach and accelerated the vesting of all
         contributions for all participants involved in the divestitures.

     Participant Loans
         Participants may borrow from their fund accounts a minimum of $1,000 up
         to a maximum equal to $50,000 or 50% of the vested account balance,
         whichever is less. The term of the loan is generally five years except
         when use of the proceeds is for the purchase of a primary residence,
         for which the term can be up to 30 years. The loans are secured by the
         balance in the participant's account and bear interest at a rate
         commensurate with local prevailing rates as determined by the plan
         administrator. The interest rates on plan loans range from 7% to 11% at
         December 31, 2001. Principal and interest are repaid through payroll
         deductions.

     Benefit Payments and Plan Withdrawals
         On termination of service due to death, disability or retirement, a
         participant (or beneficiary) may elect to receive either a lump-sum
         amount equal to the value of the participant's vested interest in his
         or her account or periodic installments. For termination of service due
         to other reasons, a participant may receive the value of the vested
         interest in his or her account as a lump-sum distribution. Withdrawals
         may be made under certain other circumstances in accordance with the
         Plan document.

     Forfeitures
         Upon a participant's break in service, as defined, the nonvested
         portion of the participant's account is forfeited and is used to reduce
         the Company's future funding requirements. If a participant who has
         terminated employment is rehired by the Company before the greater of a
         five-year break in service or the number of the participant's years of
         service prior to the participant's break in service, the participant
         shall be reinstated in such forfeited amount. At December 31, 2001,
         there were no forfeited nonvested accounts.

     Transfer In/Out
         In connection with certain reorganization activities at the Company,
         the assets of certain other plans sponsored by subsidiaries of the
         Company have been transferred into the Choice Plan in connection with
         the termination of those plans. These transfers from other plans are
         captioned "transfer in" in the financial statements. Additionally, the
         reorganization has involved a number of business dispositions. As a
         result, the plan assets in the accounts of the affected employees have
         sometimes been transferred to plans sponsored by the acquirers of these
         businesses disposed. These transfers to other plans are captioned
         "transfer out" in the financial statements.


                                       -6-




                     THERMO ELECTRON CORPORATION CHOICE PLAN

                          Notes to Financial Statements
                 For the Years Ended December 31, 2001 and 2000

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

2.   Summary of Significant Accounting Policies

     Use of Estimates
         The preparation of financial statements in conformity with generally
         accepted accounting principles requires management to make estimates
         and assumptions that affect the reported amounts of plan assets and
         liabilities and changes therein, and disclosure of contingent assets
         and liabilities. Actual results could differ from those estimates.

     Investment Valuation
         Investments are stated at fair value as determined by Fidelity
         Management Trust Company (the Trust Company), a trust company that is
         the trustee and custodian of the Plan's investment assets.

     Payment of Benefits
         Benefits are recorded when paid.

3.   Federal Income Taxes

     The Plan has received a favorable determination letter from the Internal
     Revenue Service dated May 15, 1995. The Plan has been amended since that
     date; however, the plan administrator and Plan's tax counsel believe the
     Plan is currently designed and being operated in compliance with the
     applicable requirements of the Internal Revenue Code. In addition, the
     Trust Company has received a favorable tax determination letter for the
     prototype plan used in administrating the Plan.

4.   Investments

     Investments that represent five percent or more of the Plan's net assets
     are as follows:




                                                                                              

                                                                                    December 31,
                                                                         ---------------------------------
                                                                             2001                  2000

         Janus Worldwide Fund                                            $19,271,006           $37,358,545
         Fidelity Balanced Fund                                           40,077,454            41,246,506
         Fidelity Blue Chip Growth Fund                                   47,921,091            81,786,830
         Fidelity Equity Income II Fund                                   43,815,474            65,125,197
         Fidelity U.S. Equity Index Commingled Pool                       17,742,087                     -
         Stable Value Fund                                                61,893,402            65,439,645
         Thermo Electron Stock Fund                                       15,216,739            24,227,537
         Fidelity Growth Company Fund                                     25,193,042                     -




                                       -7-




                     THERMO ELECTRON CORPORATION CHOICE PLAN

                          Notes to Financial Statements
                 For the Years Ended December 31, 2001 and 2000

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

5.   Related Party Transactions

     Plan investments are managed by the Trust Company, which is a trustee as
     defined by the Plan. Therefore, these transactions qualify as
     party-in-interest transactions. There were no fees paid by the Plan for
     investment management services for the period ended December 31, 2001.

6.   Plan Termination

     Although it has not expressed an intent to do so, the Company has the right
     under the Plan to discontinue its contributions at any time and to
     terminate the Plan subject to the provisions of ERISA. In the event of Plan
     termination, participants would become 100% vested in their employer
     contributions.

7.   Administrative Expenses

     The Company pays for administrative expenses associated with management of
     and professional services for the Plan. Administrative fees for hardship
     withdrawals and loan transactions are paid by the participants. The
     administrative expenses included in the statement of changes in net assets
     available for benefits represent expenses paid by the participants.


8.   Subsequent Events

     Total investments have depreciated approximately 10% during the first six
     months of 2002. This decline is consistent with the overall financial
     market trend.

     On March 31, 2002, the Company merged approximately $14.1 million of plan
     assets from a subsidiary into the Choice Plan during 2002.


                        See independent auditors' reports


                                       -8-




                     THERMO ELECTRON CORPORATION CHOICE PLAN

                   Schedule H, Part IV, Item 4(i) - Form 5500
         Schedule of Assets Held for Investment Purposes at End of Year
                                December 31, 2001




                                                                                                          

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

E.I.N. 04-2209186
Plan No. 001

(a)  (b)                                                  (c)                                   (d)             (e)

                                                          Description of Investment
     Identity of Issue,                                   Including Maturity Date,
     Borrower, Lessor                                     Rate of Interest, Collateral                          Current
     or Similar Party                                     Par or Maturity Value Cost                            Value

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

     PIMCO                                                Total Return ADM Fund                                $ 6,389,802

     T. Rowe Price                                        Small Cap Stock Fund                                  12,770,072

*    Fidelity Management Trust Company                    Janus Worldwide Fund                                  19,271,006

*    Fidelity Management Trust Company                    Balanced Fund                                         40,077,454

*    Fidelity Management Trust Company                    Blue Chip Growth Fund                                 47,921,091

*    Fidelity Management Trust Company                    Equity Income II Fund                                 43,815,474

*    Fidelity Management Trust Company                    U.S. Equity Index Commingled Pool                     17,742,087

*    Fidelity Management Trust Company                    Stable Value Fund                                     61,893,402

*    Thermo Electron Corporation                          Company Stock Fund                                    15,216,739

*    Fidelity Management Trust Company                    Growth Company Fund                                   25,193,042

*    Fidelity Management Trust Company                    Diversified International Fund                         3,237,818

*    Fidelity Management Trust Company                    Freedom Income Fund                                      215,302

*    Fidelity Management Trust Company                    Freedom 2001 Fund                                        152,669

*    Fidelity Management Trust Company                    Freedom 2010 Fund                                        896,665

*    Fidelity Management Trust Company                    Freedom 2020 Fund                                      1,611,039

*    Fidelity Management Trust Company                    Freedom 2030 Fund                                        716,070

*    Fidelity Management Trust Company                    Freedom 2040 Fund                                         45,242

*    Participant Loans                                    Interest rates between 7% and 11%;
                                                          maturity dates through October 2031                    4,569,758

*Represents a party-in-interest to the Plan.


                The independent auditors' reports should be read with this supplementary schedule


                                                       -9-




                    Consent of Independent Public Accountants


As independent public accountants, we hereby consent to the incorporation of our
report included in this Form 11-K into Thermo Electron Corporation's previously
filed Registration Statement File No. 33-54347 on Form S-8.


CARLIN, CHARRON & ROSEN LLP


Worcester, Massachusetts
June 27, 2002






                    Consent of Independent Public Accountants


As independent public accountants, we hereby consent to the incorporation of our
report included in this Form 11-K into Thermo Electron Corporation's previously
filed Registration Statement File No. 33-54347 on Form S-8.


ARTHUR ANDERSEN LLP


Boston, Massachusetts
July 1, 2002