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

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Tube-number record

C12B

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BrandInternational
ClassMagnetic Teletube
BaseOctal
Filament2 V @ 2.5 mA

Construction

Primary TypeOther / special
EnvelopeAluminized Screen

Filament / Heater

Heater NotesPeak Heater to Cathode potential: 150V; Warm-up period 15 secs max.

Absolute Maximum Ratings

Plate Voltage12000 V
Cathode Current15 mA
H-C Voltage150 V

Audio Performance

Key Features
  • Aluminized Screen
  • Magnetic Focusing
  • Replacement Type

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Characteristics10000 V————

Datasheets

Datasheet: C12B.pdf

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

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