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

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Tube-number record

A47-26W

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BrandMullard
ClassTelevision Tube (CRT)
BaseCRT base (B8H)
Filament6.3 V @ 300 mA

Construction

Primary TypeDisplay / CRT
EnvelopeReinforced Glass
Sections1

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 Voltage150 V
Cathode Current0.025 mA
H-C Voltage250 V

Audio Performance

Key Features
  • Metal backed screen
  • Reinforced envelope
  • Safety screen not required
  • Push-through presentation

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Visual extinction of focused raster (Grid Modulation)20000 V————
Visual extinction of focused raster (Cathode Modulation)20000 V————

Application Notes

X-ray shielding is advisable when operated above 20kV. External conductive coating M must be connected to chassis.

Datasheets

Datasheet: A47-26W.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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