<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THERMO VOLTEK CORPORATION'S REPORT ON FORM 10-Q FOR THE PERIOD ENDED OCTOBER 3, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> JAN-02-1999 <PERIOD-END> OCT-03-1998 <CASH> 14,903 <SECURITIES> 502 <RECEIVABLES> 9,391 <ALLOWANCES> 603 <INVENTORY> 12,335 <CURRENT-ASSETS> 38,560 <PP&E> 11,036 <DEPRECIATION> 7,718 <TOTAL-ASSETS> 60,245 <CURRENT-LIABILITIES> 10,541 <BONDS> 5,250 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 497 <OTHER-SE> 33,957 <TOTAL-LIABILITY-AND-EQUITY> 60,245 <SALES> 30,836 <TOTAL-REVENUES> 30,836 <CGS> 17,357 <TOTAL-COSTS> 17,357 <OTHER-EXPENSES> 2,092 <LOSS-PROVISION> 143 <INTEREST-EXPENSE> 870 <INCOME-PRETAX> 1,007 <INCOME-TAX> 403 <INCOME-CONTINUING> 604 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 604 <EPS-PRIMARY> 0.07 <EPS-DILUTED> 0.07