21AVP4-B/21AVP4-A
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BrandGeneral Electric
ClassCathode-Ray Tube
BaseDuodecal
Filament6.3V @ 600mA
Construction
Primary TypeElectrostatic Focus, Magnetic Deflection
EnvelopeJ171F Glass
Base MaterialPlastic
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 2 Voltage500 V
Grid 1 Voltage-125 V
H-C Voltage180 V
Audio Performance
Key Features
- 19 1/4 by 15-inch picture size
- Aluminized screen
- Gray faceplate
- Spherical faceplate
- Ion-trap gun
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 16000V | - | - | - | - |
Application Notes
The 21AVP4-B/21AVP4-A is an electrostatic-focus and magnetic-deflection, direct-view all-glass picture tube for television applications. It provides the same large 19 1/4 by 15-inch picture area as do 21-inch 90-degree deflection tubes.
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