Tube-number record
19AFP4, 19AUP4, 19BAP4, 19BCP4
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BrandSylvania
ClassTelevision Picture Tube
BaseCRT base (B7 family)
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeJ149C
Base MaterialPlastic
SectionsSingle
Filament / Heater
Heater NotesHeater warm-up time 11 seconds
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 2 Voltage550 V
Grid 1 Voltage-155 V
H-C Voltage200 V
Audio Performance
Key Features
- Aluminized P4 Phosphor
- 114° Magnetic Deflection
- Electrostatic Focus
- Bonded Shield
- No Ion Trap
- Gray Filter Glass
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Grid Drive Service | 16000 V | — | — | — | — |
| Cathode Drive Service | 16000 V | — | — | — | — |
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