19DWP4
0 Tubes in archive
BrandSYLVANIA
ClassTelevision Picture Tube
BaseB7-208
Filament6.3V @ 0.45mA
Construction
Primary TypeRectangular Glass
EnvelopeJ149F
Base MaterialPlastic
Sections1
Filament / Heater
Warm-up Time11s
Heater NotesHeater warm-up time defined as 11 seconds to reach 80% of rated voltage under specific test conditions.
Absolute Maximum Ratings
Plate Voltage23000 V
Grid 2 Voltage550 V
Grid 1 Voltage-154 V
H-C Voltage450 V
Audio Performance
Key Features
- 19” Direct Viewed
- Spherical Faceplate
- Gray Filter Glass
- Aluminized Screen
- Electrostatic Focus
- 114° Magnetic Deflection
- No Ion Trap
- Integral Implosion Protection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Grid Drive Service | 20000V | - | - | - | - |
| Cathode Drive Service | 20000V | - | - | - | - |
Application Notes
X-ray radiation shielding may be necessary if operated at higher than 16,000 volts. External conductive coating and rimbands must be grounded.
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