8AP4-A
0 Tubes in archive
BrandGeneral Electric
ClassTelevision Picture Tube
BaseSmall-shell duodecal 5-pin, B5-57
Filament6.3V @ 0.6mA
Construction
Primary TypeCRT
EnvelopeMetal-cone
Base MaterialSmall-shell duodecal
Sections1
Filament / Heater
Heater NotesIndirectly heated cathode
Absolute Maximum Ratings
Plate Voltage9000 V
Grid 1 Voltage-125 V
H-C Voltage140 V
Audio Performance
Key Features
- Metal-cone envelope
- Direct-view
- Neutral-density faceplate
- External ion-trap magnet
- High ambient light contrast
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Recommended Operating Conditions | 7000V | - | - | - | - |
Application Notes
The 8AP4-A is designed for television applications providing a 5 1/4 by 7-inch picture.
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