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31B81

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BrandEDISWAN
ClassCathode Ray Tube
BaseB14A (Diheptal)
Filament6.3V @ 0.5mA

Construction

Primary TypeCathode Ray Tube
EnvelopeGlass
SectionsSingle gun

Filament / Heater

Heater NotesHeater 100V negative to cathode

Absolute Maximum Ratings

Plate Voltage8000 V
Grid 2 Voltage2000 V
Grid 1 Voltage200 V
H-C Voltage150 V

Audio Performance

Key Features
  • Post Deflection Acceleration
  • Flat screen
  • High precision instruments
  • All electrostatic deflection
  • Green, Blue, White, Yellow, or Orange Phosphors

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation4000V---0.002mA

Application Notes

The undeflected spot will fall within a circle of 5 mm radius from the centre of the tube face. Orthogonality of deflection axes is +/- 1%. The magnetic shield should be of high permeability material and earthed.

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