Pins appear to be slightly bent but in good physical condition. Glass envelope shows small amount of internal deposit on glass (displayed in picture). Actual item shown; sold as pictured.



Connection Type: Glass Tube

Material: Pyrex

Side Tube Diameter: 1 inch (25.4mm)

Filament Material: Tungsten

Filament Count: Dual

Mounting Position: Any, vertical preferred

Grid: Tungsten

Overall Length, Max: 6 inches (152mm)



Operating Pressure: 2x10-10 to 10-3Torr

Sensitive for N2, nominal: 10/Torr

X-ray limit: 2x10-10Torr

Electron Bombardment Degas, Power @500V: 70 Watts, nominal; 100 Watts, max

Resistance Heated Degas: 6.3 to 7.5 volts @ 10 amps

Bakeout Temperature: 250°C


Electrical Operating Parameters

Anode Grid Bias Voltage: 180 V dc

Collector Bias Voltage: 0 V dc

Filament Bias Voltage: 30 V dc

Emission Current (nom): 10 mA

Filament Supply Current: 4 to 6 amps

Filament Supply Voltage: 3 to 5 Volts

Warranty Sold As-Is

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Granville-Phillips Model 274015 Ionization Gauge

  • Item ID: 252016
  • Brand: Granville-Phillips
  • Model: Model 274015
  • Availability: In Stock
  • Condition: Used
  • $35.00

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Tags: Granville-Phillips, Model, 274015, Gas, Monitors, Ionization, Gauge