Tube-number record
4NP
0 archive entries
4NP is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Electronic Tube Corporation, construction Display / CRT, socket Special / none, maximum plate voltage 3000 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.
BrandElectronic Tube Corporation
ClassCathode Ray Tube
BaseSpecial / none
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular 3-1/2 inch
SectionsSingle gun
Filament / Heater
Heater NotesHeater current: 0.6 +/- 10% Amperes
Absolute Maximum Ratings
Plate Voltage3000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 2500 V | — | — | — | — |
Application Notes
Designed for use in equipment subject to extreme environmental conditions. Available with mumetal shield secured to the base. Mating socket required for high altitude use.
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