21FKP22
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BrandRCA
ClassColor Picture Tube
BaseSmall-Shell Neodiheptal 12-Pin
Filament6.3V @ 1800mA
Construction
Primary TypeCRT
EnvelopeAll-Glass
SectionsThree-Gun
Filament / Heater
Heater NotesParalleled within tube
Absolute Maximum Ratings
Plate Voltage27500 V
Grid 2 Voltage650 V
Grid 1 Voltage-400 V
H-C Voltage200 V
Audio Performance
Key Features
- Integral Protective Window
- Three-Gun Graded-Hole Shadow-Mask
- Aluminized Tricolor Phosphor-Dot
- Electrostatic Focus
- Magnetic Deflection
- Magnetic Convergence
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Example 1 | 20000V | - | - | - | - |
| Example 2 | 25000V | - | - | - | - |
Application Notes
Designed for color television receivers. Shielding may be needed for X-ray radiation if operated at voltages up to 27.5kV.
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