I have two LW 125 watt postwar transformers that have been overhauled including taking the top frame off, cleaning the windings and contacts, lubricating all rotating controls and installing a wire type diode and sound button to operate more modern Lionel and other computer controlled trains. They have been tested on my test track for about one half hour running postwar and modern two motor engines. Should give good service indefinitely with reasonable care. $95 each plus shipping.