7XP
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BrandElectronic Tube Corp.
ClassCathode Ray Tube
Base25-pin special base and 22-pin ring collar
Filament6.3V @ 3000mA
Construction
Primary TypeMulti-gun (5-gun) Electrostatic
EnvelopeGlass
Sections5
Filament / Heater
Heater NotesCurrent is estimated for 5 guns (0.6A per gun)
Absolute Maximum Ratings
Plate Voltage4400 V
Plate Dissipation6 W
Grid 2 Voltage2200 V
Grid 1 Voltage-200 V
H-C Voltage180 V
Audio Performance
Key Features
- Five independent guns
- Electrostatic focus
- Electrostatic deflection
- Shielded deflection electrodes
- Bulb wall deflection leads
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post-Accelerator Operation | 4000V | - | - | - | 0.025mA |
Application Notes
The ETC Type 7XP is a seven inch diameter, five gun cathode ray tube. Each gun is independently controllable and scans the whole screen area. Post-accelerator ratio should be limited to 2.0 for optimum performance.
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