7BP1
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BrandGeneral Electric Co.
ClassCathode Ray Tube
BaseOctal
Filament6.3V @ 600mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialWafer Octal 8-pin, sleeve
SectionsSingle
Filament / Heater
Heater NotesHeater voltage and heater current allowable variation +/- 10 per cent
Absolute Maximum Ratings
Plate Voltage7700 V
Grid 2 Voltage750 V
H-C Voltage125 V
Audio Performance
Key Features
- Magnetic Focusing
- Magnetic Deflection
- P1 Phosphor
- Octal 8-pin Base
- Snap Terminal bulb contact
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation 1 | 4900V | - | - | - | - |
| Typical Operation 2 | 7000V | - | - | - | - |
Application Notes
Cutoff voltage is necessary for visual extinction of a stationary focused spot. Cathode should be connected to the midtap or to one side of heater supply.
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