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A59-11W

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BrandMullard
ClassTelevision Tube (CRT)
BaseB8H
Filament6.3V @ 300mA

Construction

Primary TypeMonochrome Cathode Ray Tube
EnvelopeReinforced glass with metal rim band
Base MaterialGlass
SectionsSingle

Filament / Heater

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

Absolute Maximum Ratings

Plate Voltage20000 V
Grid 2 Voltage700 V
Grid 1 Voltage150 V
H-C Voltage250 V

Audio Performance

Key Features
  • Metal backed screen
  • Reinforced envelope
  • Safety screen not required
  • Direct viewing

Typical Operation

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

Application Notes

The metal band (B) must be connected to the chassis via a 2.2M Ohm resistor. X-ray shielding is advisable if operated above 20kV.

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