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

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Tube-number record

21GUP22

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BrandElectronic Components
ClassColor Picture Tube
Filament6.3 V @ — mA

Construction

Primary TypeDisplay / CRT
Envelope70 degree Round
Sections3

Filament / Heater

Absolute Maximum Ratings

Plate Voltage25000 V

Audio Performance

Key Features
  • New Rare-Earth (Red) Phosphor
  • HI-LITE Screen
  • Unity Current Ratios
  • Filterglass Faceplate

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
White Light Output (9300° K)25000 V———1.4 mA

Application Notes

It is recommended that the cabinet be provided with a shatter-proof glass cover over the face to protect from accidental striking and tube implosion. Safety cover can provide x-radiation protection.

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