Tube-number record
12QP4
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BrandTUNG-SOL
ClassCathode Ray Picture Tube
BaseDuodecal
Filament6.3 V @ 0.6 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage12000 V
Grid 2 Voltage410 V
Grid 1 Voltage125 V
H-C Voltage140 V
Audio Performance
Key Features
- Magnetic Deflection
- Magnetic Focus
- External Ion-Trap
- Coated Unipotential Cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 10000 V | — | — | — | — |
Application Notes
Direct-view picture tube intended for use in television receivers. Provides for a picture 7 1/2" x 10".
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