21CGP4
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BrandTung-Sol
ClassCathode Ray Picture Tube
BaseSmall Shell Duodecal 6-pin (B6-63)
Filament6.3V @ 600mA
Construction
Primary TypePicture Tube
EnvelopeRectangular Glass
Base MaterialPlastic
Sections1
Filament / Heater
Heater NotesUnipotential Cathode
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 2 Voltage200 V
Grid 1 Voltage125 V
H-C Voltage180 V
Audio Performance
Key Features
- Aluminized screen
- Electrostatic focus
- Magnetic deflection
- Gray filter faceplate
- External conductive coating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 18000V | - | - | - | - |
Application Notes
Average raster cutoff with grid drive may be calculated: Eglco = .502 * Eg2 + 4.8. Anode voltage should not be less than 14,000 Volts.
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