Type 8142 is a versatile gauge c**tructed with a rugged bi-filar grid and a thoriated iridium filament. The interior of the tube is platinum-coated, shielding the gauge components from electrostatic and static charges which can occur in various operating conditi**. This gauge contains a burn-out resistant, thoriated iridium filament. It is also available in a rugged, long-life design described in the special gauge section.

Tubulation 3/4", 1" Kovar flanges

Envelope   Kovar, platinum-coated interior

Collector    .005" Tungsten

Filament    Tungsten

High Stability Geometry  Availabe

Grid           Tungsten Helix Configuration

Operating Pressure 2E-10 to 1E-3 Torr