	raytheon rtn net rises on operations raytheon said a pct rise in its first quarter net to mln dlrs reflected improved operations and a lower effective tax rate the company said revenue gains in electronics major appliances and other lines were offset by decreases in energy services and aircraft products revenues in the quarter rose pct to billion dlrs it said the company said backlog stood at billion dlrs down from billion dlrs a year earlier it said a five year billion dlr u s defense contract was awarded shortly after the close of the first quarter reuter 
