<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> 0
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               JUN-30-1997
<EXCHANGE-RATE>                                      1
<CASH>                                           5,310
<SECURITIES>                                     3,153
<RECEIVABLES>                                   13,497
<ALLOWANCES>                                       409
<INVENTORY>                                     14,097
<CURRENT-ASSETS>                                37,647
<PP&E>                                          17,074
<DEPRECIATION>                                  12,580
<TOTAL-ASSETS>                                  53,859
<CURRENT-LIABILITIES>                           12,160
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        35,200
<OTHER-SE>                                     (4,442)
<TOTAL-LIABILITY-AND-EQUITY>                    53,859
<SALES>                                         35,237
<TOTAL-REVENUES>                                35,237
<CGS>                                           17,989
<TOTAL-COSTS>                                   15,533
<OTHER-EXPENSES>                                   196
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 567
<INCOME-PRETAX>                                    952
<INCOME-TAX>                                       418
<INCOME-CONTINUING>                                534
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       534
<EPS-PRIMARY>                                      .09
<EPS-DILUTED>                                      .09