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

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Tube-number record

8FP4

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BrandSYLVANIA
ClassMonitor Tube
BaseDuodecal
Filament6.3 V @ 600 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGray Filter Glass, 8-inch Rectangular
Base MaterialSmall Shell Duodecal 5-Pin
Sections1

Filament / Heater

Absolute Maximum Ratings

Plate Voltage19800 V
Grid 2 Voltage550 V
Grid 1 Voltage-155 V
H-C Voltage200 V

Audio Performance

Key Features
  • Magnetic Focusing
  • Magnetic Deflection
  • Aluminized Screen
  • Gray Filter Glass
  • External Single Field Ion Trap

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Monitor Service16000 V————

Application Notes

X-ray radiation shielding may be necessary to protect against possible danger of personal injury from prolonged exposure at close range if this tube is operated at higher than 16,000 volts.

Datasheets

Datasheet: 8FP4.pdf

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

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