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1240/54HM

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BrandFerranti
ClassRadar Tube
BaseB1A/D
Filament6.3V @ 300mA

Construction

Primary TypeCRT
EnvelopeGlass
SectionsSingle gun

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage15000 V
Grid 2 Voltage600 V
H-C Voltage200 V

Audio Performance

Key Features
  • Narrow neck
  • Small deflection angle
  • Synthetic Radar presentation
  • CT8 Anode Cap

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Valve Drive12000V----
Transistor Drive12000V----

Application Notes

Suitable for use with either Transistor or Valve circuits. Phosphors are liable to burn if operated with a stationary spot.

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