Tube-number record
7892
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BrandTung-Sol
ClassTwin Triode
BaseNoval (B9A)
Filament6.3 V @ 900 mA
Construction
Primary TypeTriode
EnvelopeT-6 1/2
Base MaterialMiniature button 9-pin
Sections2
Filament / Heater
Heater NotesCommon connection permitting either 6.3 volt or 12.6 volt operation.
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation4.2 W
Grid 1 Voltage100 V
H-C Voltage200 V
Audio Performance
Key Features
- Medium mu
- High perveyance
- Twin triode
- Electrically independent sections
- Pulse amplifier and oscillator service
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pulse amplifier | 175 V | — | — | — | — |
Application Notes
Intended only for pulse amplifier and oscillator service. Not rated for Class A, B, and C operation with duty factors > 10% or pulse widths > 100 microseconds.
Datasheets
Datasheet: 7892.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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