<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THERMO VOLTEK CORPORATION'S QUARTERLY REPORT ON FORM 10-Q FOR THE PERIOD ENDED APRIL 4, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> JAN-02-1999 <PERIOD-END> APR-04-1998 <CASH> 14,159 <SECURITIES> 1,506 <RECEIVABLES> 11,474 <ALLOWANCES> 867 <INVENTORY> 11,675 <CURRENT-ASSETS> 39,995 <PP&E> 10,747 <DEPRECIATION> 7,312 <TOTAL-ASSETS> 61,944 <CURRENT-LIABILITIES> 12,641 <BONDS> 5,250 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 497 <OTHER-SE> 33,574 <TOTAL-LIABILITY-AND-EQUITY> 61,944 <SALES> 11,440 <TOTAL-REVENUES> 11,440 <CGS> 6,218 <TOTAL-COSTS> 6,218 <OTHER-EXPENSES> 793 <LOSS-PROVISION> 21 <INTEREST-EXPENSE> 287 <INCOME-PRETAX> 853 <INCOME-TAX> 342 <INCOME-CONTINUING> 511 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 511 <EPS-PRIMARY> .06 <EPS-DILUTED> .05