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25 QP 21

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BrandTESLA
ClassCathode Ray Tube
Base8-pin
Filament6.3V @ 700mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialGlass/Metal
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated, oxide cathode, AC or DC

Absolute Maximum Ratings

Plate Voltage10000 V
Grid 2 Voltage400 V
Grid 1 Voltage150 V
Cathode Current0.05 mA
H-C Voltage125 V

Audio Performance

Key Features
  • Electromagnetic deflection
  • Magnetic focusing
  • Long persistence screen
  • Conductive outer coating

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Operation 16000V----
Operation 28000V----

Application Notes

Designed for measuring and industrial instruments requiring long afterglow. Outer conductive coating must be grounded.

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