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31C81

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BrandEDISWAN
ClassCathode Ray Tube
BaseB14A (Diheptal)
Filament6.3V @ 500mA

Construction

Primary TypeElectrostatic
EnvelopeGlass
SectionsSingle Gun

Filament / Heater

Heater NotesHeater 100V Negative with respect to cathode

Absolute Maximum Ratings

Plate Voltage8000 V
Grid 2 Voltage2000 V
Grid 1 Voltage-200 V
H-C Voltage150 V

Audio Performance

Key Features
  • Post Deflection Acceleration
  • Flat screen
  • High Precision Instruments
  • All Electrostatic

Typical Operation

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

Application Notes

The magnetic shield should be of high permeability material and earthed. For direct measurement of deflection amplitudes, Va4/Va3 ratio should not exceed 2:1.

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