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A47-14W

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BrandMullard
ClassTelevision Cathode Ray Tube
BaseB8H
Filament6.3V @ 300mA

Construction

Primary TypeMonochrome CRT
EnvelopeRectangular glass
Base MaterialGlass
SectionsSingle gun

Filament / Heater

Heater NotesSuitable for series or parallel operation; surge heater voltage must not exceed 9.5V r.m.s.

Absolute Maximum Ratings

Plate Voltage20000 V
Grid 2 Voltage700 V
Grid 1 Voltage-400 V
H-C Voltage250 V

Audio Performance

Key Features
  • Metal backed screen
  • Direct viewing
  • Double magnetic deflection
  • External conductive coating

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation - Grid Modulation20000V---0.25mA
Typical Operation - Cathode Modulation20000V---0.25mA

Application Notes

X-ray shielding is advisable if operated above 20kV. The d.c. value of bias must not allow grid to become positive with respect to cathode except during switch on/off. Pin protector should remain until socket installation.

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