25XP22
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BrandRCA
ClassColor Picture Tube
BaseSmall-Button Diheptar 12-pin (B12-244)
Filament6.3V @ 900mA
Construction
Primary TypeRectangular Tricolor Phosphor-Dot
EnvelopeFilterglass with Protective Window
Sections3-Gun (Red, Blue, Green)
Filament / Heater
Heater NotesSeries connected within tube
Absolute Maximum Ratings
Plate Voltage30000 V
Grid 2 Voltage1000 V
Grid 1 Voltage-400 V
Cathode Current1 mA
H-C Voltage200 V
Audio Performance
Key Features
- PERMA-CHROME assembly for field purity
- Aluminized tricolor phosphor-dot screen
- Hi-Lite screen with rare-earth red phosphor
- 90 degree magnetic deflection
- Integral filterglass protective window
- 3 electrostatic-focus guns
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Example Circuit Design | 25000V | - | - | - | - |
Application Notes
The tube must be operated with the tube axis in a horizontal position and with the blue gun uppermost. Shielding for X-radiation may be needed at anode voltages as high as 27.5 kV.
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