21DJP4
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BrandSylvania
ClassTelevision Picture Tube
BaseSmall Shell Duodecal 6-Pin
Filament6.3V @ 0.3mA
Construction
Primary TypeCRT
EnvelopeJ171D or JI71E
Base MaterialPlastic
Sections1
Filament / Heater
Heater NotesHeater warm-up time 11 seconds
Absolute Maximum Ratings
Plate Voltage22000 V
Grid 2 Voltage550 V
Grid 1 Voltage-155 V
H-C Voltage200 V
Audio Performance
Key Features
- Electrostatic Focusing
- Magnetic Deflection
- Aluminized P4 Phosphor
- No Ion Trap
- Gray Filter Glass
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 16000V | - | - | - | - |
Application Notes
X-ray radiation shielding may be necessary for protection if operated above 16,000 volts. External conductive coating must be grounded.
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