ROAD POWER SYSTEM Power Technology, Inc.: 5,000-watt system converts any engine into AC power generator. Works with stand-alone engines. 120 volts, 60 hertz; and 230 volt, 50 hertz versions available. Has variable speed alternator, converter, and remote control panel; alternator can be mounted directly on engine, converter and remote control anywhere convenient. Alternator requires 1.7 hp per kilowatt of load and has top speed of 8,000 rpm. Weighs 50 pounds. (214) 348-9191.