Tube-number record
3 BNP 1
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BrandTELEFUNKEN
ClassCathode-Ray Tube
BaseCRT base (B12 family)
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass, 3 inch flat face
SectionsSingle beam
Filament / Heater
Heater NotesHeater voltage ±10%
Absolute Maximum Ratings
Plate Voltage1000 V
Grid 1 Voltage-250 V
Cathode Current0.2 mA
H-C Voltage125 V
Audio Performance
Key Features
- Flat face
- Single beam
- Electrostatic deflection
- Electrostatic focus
- High light output
- High deflection sensitivity
- Small spot size
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 800 V | — | — | — | 0.025 mA |
Application Notes
Specially shaped deflecting plates allow deflection with symmetrical as well as asymmetrical voltages for D1, D2 and D3, D4.
Datasheets
Datasheet: 3BNP1.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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