Tube-number record
7682
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BrandWestinghouse
ClassDirect View Storage Tube
BaseDiheptal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass with integral magnetic shield
Base MaterialSynthetic silicone rubber potting
SectionsDual Gun (Writing and Flood)
Filament / Heater
Heater NotesRatings apply to both writing and flood guns
Absolute Maximum Ratings
Plate Voltage5000 V
Grid 2 Voltage3000 V
Grid 1 Voltage-200 V
H-C Voltage125 V
Audio Performance
Key Features
- Half-Tone or Line storage
- Flicker-free display
- High writing speed
- Integral magnetic shield
- Potted in silicone rubber
- Aluminized P20 phosphor
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Writing Gun | 5000 V | — | — | — | 0.1 mA |
| Flood Gun | 5000 V | — | — | — | 0.25 mA |
Application Notes
Suitable for airborne fire-control, navigational radar, and transient studies. Designed for military environments with salt spray resistance.
Datasheets
Datasheet: 7682.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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