21CYP22A
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BrandSYLVANIA
ClassColor Television Picture Tube
BaseB12-131
Filament6.3V @ 1600mA
Construction
Primary TypeThree Electron Gun
EnvelopeRound Glass
Sections3
Filament / Heater
Heater NotesParallel heater supply
Absolute Maximum Ratings
Plate Voltage27500 V
Grid 2 Voltage660 V
Grid 1 Voltage440 V
Cathode Current1 mA
H-C Voltage200 V
Audio Performance
Key Features
- Aluminized Screen
- Three-Color Phosphor Dot
- Filter Glass Faceplate
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Example Operation | 25000V | - | - | - | - |
| Example Operation 2 | 20000V | - | - | - | - |
Application Notes
Recommended Grid No. 3 power supply be limited-energy type. Grid No. 3 circuit resistance should be limited to 7.5 Megohms.
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