Tube-number record
7033
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BrandHughes
ClassDirect-Display Half-Tone Storage Tube
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 0.6 mA
Construction
Primary TypeOther / special
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 | 6000 V | — | — | — | 0.5 mA |
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.
Datasheets
Datasheet: 7033.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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