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Tube Database (7,341 tube types · 1,270 archive entries)

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Tube-number record

F8044P

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BrandCSF (Compagnie Générale de Télégraphie Sans Fil)
ClassCathode Ray Tube
BaseDiheptal
Filament6.3 V @ 600 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass, 13 cm screen
Base MaterialGlass
SectionsSingle-gun

Filament / Heater

Heater NotesTolerance ±10%

Absolute Maximum Ratings

Plate Voltage13200 V
Grid 2 Voltage2200 V
H-C Voltage140 V

Audio Performance

Key Features
  • Aluminized screen
  • Electrostatic deflection and focusing
  • High writing speed
  • High sensitivity
  • Low interelectrode capacitance
  • Low distortion

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Standard Operation10000 V———0.005 mA

Application Notes

Recommended to use a mu-metal shield to prevent magnetic field interference. Use flexible wires for connections to facilitate orientation adjustment.

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