Tube-number record
6498
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BrandHughes Aircraft Company
ClassCathode-Ray Storage Tube
BaseDiheptal
Filament6.3 V @ 0.6 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialSmall-Shell Diheptal
SectionsDual Gun (Writing and Flood)
Filament / Heater
Heater NotesTwo heaters provided for unipotential cathodes, 0.6A per heater.
Absolute Maximum Ratings
Plate Voltage6000 V
Grid 2 Voltage300 V
Grid 1 Voltage-3300 V
Audio Performance
Key Features
- Bright Display
- Direct-reading
- Medium Persistence
- Electrostatic Focus
- Electrostatic Deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation (Flood Gun Cathode Ref) | 5000 V | — | — | — | 0.3 mA |
Application Notes
Power supplies should be of the limited-energy type. Resistance should be provided between electrodes and power supply outputs to limit short circuit currents.
Datasheets
Datasheet: 6498.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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