Museum-L: One of our members has available for donation to a worthy museum a machine designed to grow silicon crystals for subsequent slicing into wafers for computer chips, to wit: A large machine, of Texas Instruments design, known as a "Chamber Lopex Model 2" Silicon Float-zone Crystal Grower. It was used, until about five years ago, to grow crystal rods about 1" in diameter of very pure silicon. (Its capacity could go up to perhaps 2" dia.) It is BIG and HEAVY. Specifically, about 10' high with a 4' x 6' foot print, and an accompanying RF power generator about 7' high with a 3' x 6' footprint. Power required to operate... <<50kw of 440VAC 3ph. This fun rascal is available at no cost to a worthy Museum. Offeror may help load it onto your truck (capable of hauling several tons) If you have a serious inquiry, I'm prepared to pass it along to the machine's owner. Walter -- Walter R. T. Witschey, Ph.D. Director, Science Museum of Virginia 2500 West Broad Street, Richmond, VA 23220 Voice: (804) 367-6799, FAX (804) 367-9348 e-mail [log in to unmask]