Exhibit 23(c)


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


             We hereby consent to the incorporation by reference in this
        registration statement on Form S-8 for the Thermo Optek
        Corporation Equity Incentive Plan of our report dated April 2,
        1996 relating to the statutory financial statements of A.R.L.
        Applied Research Laboratories S.A. which appears in Thermo Optek
        Corporation's registration statement No. 333-03630 on Form S-1.



                                      /s/Price Waterhouse S.A.



        Lausanne, Switzerland
        October 7, 1996