... one or multiple conductors penetrating the vacuum wall to carry electricity to any powered vacuum device These high-voltage, high current ... , KF(QF) flanges adn male pinpe thread.Constructed from vacuum-grade materials, including OFHC copper and nickel conductor (pin, ... stainless steel mounts, high-purity alumina ceramic insulation, and vacuum-tube grade braze alloysUnits are all designed and rated for ...