Symtron Corp.: John A. Carr has been...

Symtron Corp.: John A. Carr has been appointed senior vice president and general manager of Symtron Corp., a wholly owned subsidiary of Diceon Electronics. He will assume responsibilities for operations, quality and engineering for Symtron. Before joining Symtron, Carr was president of Continental Circuits. Before that, he founded Orange Nassau Electronics Inc., a data communications and systems holding company. Diceon, based in Irvine, manufactures circuit boards and back panels.