Tube-number record
5NP1, 5NP4
0 archive entries
5NP1, 5NP4 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Sylvania, year 1947, construction Display / CRT, base Sleeve, socket Magnal, and maximum plate voltage 2200 V. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassCathode Ray Tube
BaseMagnal
Filament6.3 V @ 0.6 mA
Construction
Primary TypeDisplay / CRT
EnvelopeJ-42-G
Base MaterialSleeve
SectionsSingle
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Operation 1 | 1500 V | — | — | — | — |
| Operation 2 | 2000 V | — | — | — | — |
Application Notes
Grid #1 voltage should never be positive. Grid voltage for cut-off is voltage necessary for visual extinction of the unfocused, focused spot.
0 results