Tube-number record
5FP-
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ClassCathode-Ray Tube
BaseOctal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialMedium-Shell Octal
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage8000 V
Plate Dissipation6 W
Grid 2 Voltage700 V
Grid 1 Voltage-180 V
H-C Voltage125 V
Audio Performance
Key Features
- Magnetically focussed
- Magnetically deflected
- Large flat screen area
- Electron gun with limiting aperture
- Designed for radar indicator applications
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation (4000V Anode) | 4000 V | — | — | — | 0.2 mA |
| Typical Operation (7000V Anode) | 7000 V | — | — | — | 0.2 mA |
Application Notes
The Type 5FP- features an electron gun with a limiting aperture to produce a sharp, round spot at high screen currents. Primarily designed for radar indicator applications. Similar electrical characteristics to 7BP-, 10KP-, and 12SP-.
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