The filaments, fabricated from tungsten, rhenium, or iridium, come in straight, hairpin, V-shape, spiral, or special configurations with yttria or thoria coatings and plain ends or platinum tabs for welding ease. The coatings ensure a burnout-resistant base metal and low-work function to improve filament operation.
ETI 2400 Philmont Ave. Huntingdon Valley, PA 19006 (215) 947-2500 etigauges.com
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