Mr. Beecher will continue as Teradyne’s CFO until a successor is appointed and a transition is completed. The news comes a day after the North Reading, Mass.-based maker of automation equipment reported fourth-quarter revenue of $520 million, up 8.6% from the same quarter of 2017. Earnings per share totaled 79 cents in the final quarter of 2018, compared with a loss of 54 cents a share for the same period of 2017.