7033
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BrandHughes
ClassDirect-Display Half-Tone Storage Tube
BaseJETEC E8-11 (Writing Gun), JETEC E7-1 (Flood Gun)
Filament6.3V @ 0.6mA
Construction
Primary TypeMagnetic Deflection, Electrostatic Focus
Envelope5-3/8 inch Diameter Bulb
Base MaterialGlass
SectionsDual (Writing and Flood Guns)
Filament / Heater
Heater NotesTwo heaters for unipotential cathodes; 0.6A per heater.
Absolute Maximum Ratings
Plate Voltage10000 V
Plate Dissipation10 W
Grid 2 Voltage300 V
Grid 1 Voltage-125 V
H-C Voltage180 V
Audio Performance
Key Features
- Storage of half-tones
- High brightness for high ambient light
- Controllable persistence
- High resolution writing gun
- Aluminum-backed phosphor
- Precision collimating lens
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Direct Display Storage | 6000V | - | - | - | 0.5mA |
Application Notes
Used in high ambient light levels for PPI or sector scan displays. Requires magnetic shielding for writing and flood guns to maintain collimation. Erase rate is adjustable by pulse duty cycle.
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