Tube-number record
6947
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BrandSylvania
ClassMedium-Mu Double Triode
BaseSubminiature
Filament6.3 V @ 350 mA
Construction
Primary TypeDual triode
EnvelopeT-3 Bulb
Base MaterialCoated Unipotential
Sections2
Filament / Heater
Heater NotesHeater current 350 mA at 6.3 V
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation0.75 W
Grid 1 Voltage-55 V
Cathode Current13 mA
H-C Voltage200 V
Audio Performance
Key Features
- Guided-missile service
- Reliable operation under severe mechanical shock
- Extraordinary freedom from interelement short circuits
- High resistance to interelement leakage
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Operation (Each Section) | 150 V | 4000 | — | 35 | 6.5 mA |
Application Notes
Designed for general purpose applications in guided-missile service where vibration, shock and high temperatures are encountered.
Datasheets
Datasheet: 6947.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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