Tube-number record
24AP4
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BrandGeneral Electric
ClassCathode-Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeMetal Cone
Base MaterialPlastic
SectionsSingle
Filament / Heater
Heater NotesHeater negative with respect to cathode peak 410V during warmup, 150V after warmup.
Absolute Maximum Ratings
Plate Voltage16000 V
Grid 2 Voltage410 V
Grid 1 Voltage-125 V
H-C Voltage150 V
Audio Performance
Key Features
- 24-inch round metal cone
- Spherical gray faceplate
- Ion-trap gun
- High picture contrast
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Television | 14000 V | — | — | — | — |
Application Notes
Anode voltage should generally not be less than 12,000 Volts for brightness and focus quality.
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