The units generated at 13KV, but the voltage > was immediately stepped up to 115KV by a transformer in a concrete enclosure > with a large hole (for ventilation I suppose) in the concrete roof. Hole bout the size of a womp rat i bet. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .