TVNewser obtained an internal memo from CNBC VP Jonathan Wald:

One of CNBC's originals is moving on. Ted David started here just a month before CNBC went on the air in 1989 and he has been a valued member of the staff ever since, most recently as the principal voice of CNBC Radio. Please join me in thanking Ted for his many years of service at CNBC. We wish him the best of luck in his retirement. Ted's last day on air will be May 2.