The 274005 Glass Bayard-Alpert Hot Cathode Gauge features a single thoria-coated iridium filament, a <1 x 10-9 to 1 x 10-3 Torr vacuum measurement range, and a 1 inch Pyrex glass inlet port.
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274005 - Drawings
Additional drawings are not available for this product.
274005
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Vacuum Gauge, Glass Bayard-Alpert, Single Thoria-coated Iridium Filament, 1.0 in. Glass Inlet Port