Separate from the furnace structure is the electrode support and electrical system, and the tilting platform on which the furnace rests.
2.
Two configurations are possible : the electrode supports and the roof tilt with the furnace, or are fixed to the raised platform.
3.
Better, often dual, getters were implemented to maintain a better vacuum, and more-rigid electrode supports introduced to reduce microphonics and improve vibration and shock resistance.
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