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9WP4

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BrandRCA
ClassPicture Tube
BaseSmall-Button Special Miniature 7-Pin (JEDEC No. E7-91)
Filament12V @ 78.7mA

Construction

Primary TypeCRT
EnvelopeFilterglass
SectionsSingle

Filament / Heater

Heater NotesWarm-Up Time: 11 seconds

Absolute Maximum Ratings

Plate Voltage12000 V
Grid 2 Voltage250 V
Grid 1 Voltage-155 V
H-C Voltage200 V

Audio Performance

Key Features
  • Pan-O-Ply Type
  • Aluminized Screen
  • No Ion-Trap Magnet Required
  • Low Grid No. 2 Voltage Focus

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Cathode-Drive Service9000V----

Application Notes

Voltages are positive with respect to grid No.1 in cathode-drive service typical operation.

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