Looking for a an OP-AMP part # 442-623 which is an RCA CA3130S which is in a TO-99 package. I found several 3130's but are DIPs which might work (mechanically) but not sure of the specs since I cannot find a spec sheet for the 3130S. Any help would be appreciated. Thanks and 73, Dick KF4NS St Petersburg, FL 33714 USA Keep The Glow!