Tube-number record
23BP4
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BrandWestinghouse
ClassTelevision Picture Tube
BaseCRT base (B7 family)
Filament6.3 V @ 0.4 mA
Construction
Primary TypeRectangular Glass
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesWarm-up time 11 seconds
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 2 Voltage500 V
Grid 1 Voltage-200 V
H-C Voltage180 V
Audio Performance
Key Features
- 110° Magnetic Deflection
- Twin Face Panel
- Integral Safety Glass
- Electrostatic Focus
- Aluminized
- External Conductive Coating
- No Ion Trap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Grid Drive | 14000 V | — | — | — | — |
Application Notes
In general, anode voltage should not be less than 12,000 volts. Protective resistance in the G2 and G4 circuits is advisable.