7CP1
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BrandRCA (Radio Corporation of America)
ClassOscillograph Tube
BaseLong Medium-Shell Octal 8-Pin
Filament6.3V @ 600mA
Construction
Primary TypeCRT
EnvelopeGlass
Base MaterialPlastic
Sections1
Filament / Heater
Heater NotesUnipotential Cathode
Absolute Maximum Ratings
Plate Voltage8000 V
Grid 2 Voltage300 V
Grid 1 Voltage-125 V
H-C Voltage125 V
Audio Performance
Key Features
- Electrostatic Focus
- Magnetic Deflection
- Phosphor P1
- Green Fluorescence
- Medium Persistence
- Any Mounting Position
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Anode No.2 = 4000V | 4000V | - | - | - | - |
| Anode No.2 = 7000V | 7000V | - | - | - | - |
Application Notes
Brilliance and definition decrease with decreasing anode-No.2 voltage; voltage should not be less than 4000 volts. Visual extinction supply should be adjustable to +/- 50% of indicated value.
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