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

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Tube-number record

A 40-18 W

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BrandMAZDA BELVU
ClassCathode Ray Tube
BaseCRT / special base
Filament6.3 V @ 300 mA

Construction

Primary TypeDisplay / CRT
EnvelopeRectangular
SectionsSingle

Filament / Heater

Heater NotesIndirect heating

Absolute Maximum Ratings

Plate Voltage18000 V
Grid 2 Voltage700 V
H-C Voltage450 V

Audio Performance

Key Features
  • 110° Deflection
  • Aluminized screen
  • Electrostatic concentration
  • Magnetic deflection
  • Tinted screen
  • Self-protected
  • Unipotential electron gun
  • No ion trap

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Modulation par la cathode16000 V————

Application Notes

Le temps de chauffage du filament est défini avec un circuit série de 3 fois la résistance à chaud.

Datasheets

Datasheet: A40-18W.pdf

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

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