Tube-number record
DAF91
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BrandMazda Belvu
ClassDiode-Pentode
BaseMiniature 7-pin (B7G)
Construction
Primary TypeMulti-section
EnvelopeA 19-2
Base MaterialGlass
Sections2
Filament / Heater
MaterialDirect
Absolute Maximum Ratings
Plate Voltage90 V
Grid 2 Voltage90 V
Cathode Current4.5 mA
Audio Performance
Key Features
- Direct heating
- Series or parallel filament supply
- Detecteur - Préamplificateur A.F.
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Section | 67.5 V | 625 | 600000 | — | 1.6 mA |
Datasheets
Datasheet: DAF91.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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