DICEON ELECTRONICS <DICN.O> TO BUY SYMTRON CORP Diceon Electronics Inc said it has entered an agreement in principal to buy closely-held Symtron Corp in a stock exchange transaction. Under the pact, Diceon would exchange 300,000 shares of its stock for all of Symtron's shares. The acquisition, which is subject to board approval and a definitive agreement, is expected to be concluded during May. Diceon said Symtron management would continue running the business, which would become a wholly-owned subsidiary. Symtron had 1986 sales of about 20 mln dlrs.