Tube-number record
6844A
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BrandBurroughs
ClassNumerical Indicator Tube
Base13-pin
Construction
Primary TypeOther / special
EnvelopeGlass
Sections10-digit (0-9)
Filament / Heater
Absolute Maximum Ratings
Plate Voltage170 V
Plate Dissipation0.4 W
Cathode Current2.5 mA
Audio Performance
Key Features
- Gas-filled
- Suppressor screen to minimize darkening
- Cup design non-glare background
- Direct in-line read-out
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Recommended Operation | 170 V | — | 15000 | — | 2 mA |
| Recommended Operation | 250 V | — | 47000 | — | — |
Application Notes
The tube socket is oriented with respect to the viewing position so that the vertical center line of pins passes symmetrically with Pin 1 on top. Numbers are viewed through the top of the tube.
Datasheets
Datasheet: 6844A.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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