23NP4
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BrandRCA
ClassPicture Tube
BaseSmall-Button Neoeightar 7-Pin
Filament6.3V @ 600mA
Construction
Primary TypeCRT
EnvelopeGlass
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesHeater warm-up time: 11 seconds
Absolute Maximum Ratings
Plate Voltage22000 V
Grid 2 Voltage70 V
H-C Voltage450 V
Audio Performance
Key Features
- Aluminized Screen
- Low-Voltage Electrostatic Focus
- No Ion-Trap Magnet Required
- Cathode-Drive Operation
- 114° Magnetic Deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cathode-Drive Service | 16000V | - | - | - | 0.2mA |
Application Notes
The 23NP4 is a directly viewed, rectangular glass picture tube featuring a relatively flat compound radius faceplate. It uses a low-grid-No.2-voltage gun for improved cathode-drive sensitivity.
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