Tube-number record
3NP4
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BrandNorth American Philips Co., Inc.
ClassCathode Ray Tube
Base5-pin
Filament6.3 V @ 600 mA
Construction
Primary TypeOther / special
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage26000 V
Grid 1 Voltage-125 V
H-C Voltage125 V
Audio Performance
Key Features
- Projection Television Tube
- Electromagnetic Focus
- Electromagnetic Deflection
- External Conductive Coating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Magnetic Deflection | 25000 V | — | — | — | 0.004 mA |
Application Notes
The 3NP4 is a magnetic focus and magnetic deflection projection tube designed primarily for use with reflective optical systems. It has an external conductive coating.
Datasheets
Datasheet: 3NP4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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