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

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12BAP4 vacuum tube outline illustration

Tube-number record

12BAP4

0 archive entries

12BAP4 is a tube type in the TubeDatabase archive (class: Picture Tube). Recorded specifications: brand Hitachi, construction Display / CRT, socket CRT base (B7 family), and maximum plate voltage 14000 V. The archive does not yet hold a photographed example of this type.

BrandHitachi
ClassPicture Tube
BaseCRT base (B7 family)
Filament6.3 V @ 300 mA

Construction

Primary TypeDisplay / CRT
Envelope12-inch Rectangular Glass
Sections1

Filament / Heater

Heater NotesHeater warm-up time 11 seconds

Absolute Maximum Ratings

Plate Voltage14000 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Grid Drive Service10000 V———0.1 mA
Cathode Drive Service10000 V———0.1 mA

Application Notes

X-ray radiation shielding may be necessary if operated higher than 14,000 Volts or 16,000 Volts.

Datasheets

Datasheet: 12BAP4.pdf

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

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Brands

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    Grid 2 Voltage550 V
    Grid 1 Voltage-154 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • 110° Deflection
    • Squared Corner Type
    • Aluminized Screen
    • No Ion Trap Magnet Required
    • Short Electron Gun