Tube-number record
23DNP4
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BrandZenith
ClassCathode Ray Tube
BaseCRT base (B12 family)
Filament6.3 V @ 600 mA
Construction
Primary TypeRectangular Glass
EnvelopeJ187D1
Sections1
Filament / Heater
Heater NotesWarm-up time 11 seconds
Absolute Maximum Ratings
Plate Voltage25000 V
Grid 2 Voltage60 V
H-C Voltage180 V
Audio Performance
Key Features
- Low G5 Voltage (35 Ve)
- Cathode Drive Design
- 92° Magnetic Deflection
- Electrostatic Focus
- Gray Filter Glass
- Bonded Implosion Panel
- No Ion Trap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cathode Drive Service | 20000 V | — | — | — | 0.2 mA |
Application Notes
Visual extinction of focused raster. Individual tubes will have satisfactory focus at some value between 0 and 500 volts.
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