Tube-number record
6992
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BrandVACUUM TUBE PRODUCTS CO. INC.
Class3" Tone Display Storage Tube
BaseDiheptal
Filament6.3 V @ 1.2 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsWriting Gun and Viewing (Flood) Gun
Filament / Heater
Heater Notes0.6A per gun; Writing gun and Viewing gun are separate heaters
Absolute Maximum Ratings
Plate Voltage12000 V
Grid 1 Voltage-200 V
H-C Voltage125 V
Audio Performance
Key Features
- Display tones
- High brightness
- Visual display of TV and Radar
- Operator controlled write, hold, and erase
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Writing Gun | 20 V | — | 5000 | — | — |
| Viewing Gun | 185 V | — | — | — | — |
Application Notes
Zero volts storage mesh is the black storage condition. Pulse erasure may be accomplished by application of pulses of +10 to +25 volts. Persistence may be varied from 1 second to several minutes.
Datasheets
Datasheet: 6992.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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