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431QQ44

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BrandTESLA
ClassTelevision Picture Tube (CRT)
BaseSpecial 7-pin
Filament6.3V @ 0.3mA

Construction

Primary TypeTetrode
EnvelopeGlass
Base MaterialCemented special base
Sections1

Filament / Heater

Heater NotesIndirect heating, oxide cathode, series or parallel supply

Absolute Maximum Ratings

Plate Voltage16000 V
Grid 2 Voltage500 V
Grid 1 Voltage-150 V
Cathode Current0.15 mA
H-C Voltage200 V

Audio Performance

Key Features
  • Aluminized screen
  • Shortened length
  • No ion trap required
  • Smoky glass for contrast
  • Spherical screen face

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation16000V---0.1mA

Application Notes

Screen loading should not exceed 10 mW/cm2. If heater is series-connected, voltage must not exceed 9.5V during turn-on.

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