
<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the Form
10-Q for the period March 31, 1997 and is qualified in its entirety by reference to such financial statements. 
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          JUN-30-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                      14,508,410
<SECURITIES>                                 3,611,165
<RECEIVABLES>                               12,202,341
<ALLOWANCES>                                  (25,000)
<INVENTORY>                                  2,457,190
<CURRENT-ASSETS>                            36,150,738
<PP&E>                                      28,875,499
<DEPRECIATION>                            (21,851,420)
<TOTAL-ASSETS>                              43,966,120
<CURRENT-LIABILITIES>                        7,940,776
<BONDS>                                        820,433
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       108,147
<OTHER-SE>                                  31,152,023
<TOTAL-LIABILITY-AND-EQUITY>                43,966,120
<SALES>                                     12,140,674
<TOTAL-REVENUES>                            22,440,319
<CGS>                                       13,895,955
<TOTAL-COSTS>                                3,719,833
<OTHER-EXPENSES>                            18,833,271
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             249,787
<INCOME-PRETAX>                           (13,046,006)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                       (13,046,006)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                              (13,046,006)
<EPS-PRIMARY>                                   (1.22)
<EPS-DILUTED>                                   (1.22)
        

</TABLE>
