<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THERMO
VOLTEK CORP.'S QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED JUNE 28, 1997
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-03-1998
<PERIOD-END>                               JUN-28-1997
<CASH>                                          14,605
<SECURITIES>                                     5,539
<RECEIVABLES>                                   10,405
<ALLOWANCES>                                       694
<INVENTORY>                                     11,682
<CURRENT-ASSETS>                                43,576
<PP&E>                                          10,238
<DEPRECIATION>                                   6,203
<TOTAL-ASSETS>                                  66,340
<CURRENT-LIABILITIES>                           13,422
<BONDS>                                          8,450
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           497
<OTHER-SE>                                      33,971
<TOTAL-LIABILITY-AND-EQUITY>                    66,340
<SALES>                                         21,604
<TOTAL-REVENUES>                                21,604
<CGS>                                           11,893
<TOTAL-COSTS>                                   11,893
<OTHER-EXPENSES>                                 1,870
<LOSS-PROVISION>                                   117
<INTEREST-EXPENSE>                                 580
<INCOME-PRETAX>                                  (279)
<INCOME-TAX>                                     (106)
<INCOME-CONTINUING>                              (173)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     (173)
<EPS-PRIMARY>                                    (.02)
<EPS-DILUTED>                                    (.02)