Tube-number record
24ATP4
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BrandWestinghouse
ClassTelevision Picture Tube
BaseDuodecal
Filament6.3 V @ 0.6 mA
Construction
Primary TypeRectangular Glass
EnvelopeGlass
Base MaterialPlastic
Sections1
Filament / Heater
Heater NotesCoated Unipotential Cathode; Warm-up Time 11.0 Seconds
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 2 Voltage68 V
Grid 1 Voltage140 V
H-C Voltage180 V
Audio Performance
Key Features
- 90° Deflection
- Electrostatic Focus
- Aluminized Screen
- No Ion Trap Gun
- Cathode Drive Design
- Low G2 (50 Volts)
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cathode Drive Service (Condition 1) | 14000 V | — | — | — | 0.2 mA |
| Cathode Drive Service (Condition 2) | 18000 V | — | — | — | 0.2 mA |
Application Notes
Protective resistance in the G2 and G4 circuits is advisable to prevent damage. Shielding for x-ray radiation may be needed if operating in excess of 16 kilovolts.
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