Tube-number record
5JP-A
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5JP-A is a tube type in the TubeDatabase archive (class: Cathode-Ray Tube). Recorded specifications: construction Display / CRT, socket Magnal, maximum plate voltage 4000 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.
ClassCathode-Ray Tube
BaseMagnal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation6 W
Grid 2 Voltage2000 V
Grid 1 Voltage-125 V
Audio Performance
Key Features
- Low deflection plate capacitances
- Short and direct deflection plate leads
- Intensifier principle for maximum sensitivity
- Negligible focusing electrode current
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 3000V Operation | 3000 V | — | — | — | — |
| 4000V Operation | 4000 V | — | — | — | — |
Application Notes
Designed for oscillographic applications where low deflection plate capacitances are essential. The intensifier principle provides maximum deflection sensitivity.
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