Tube-number record
EBF80
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BrandPhilips
ClassDuodiode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 300 mA
Construction
Primary TypeOther / special
EnvelopeGlass
SectionsDuodiode-Pentode
Filament / Heater
Heater NotesIndirectly heated by A.C. or D.C.; parallel or series supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1.5 W
Grid 2 Voltage300 V
Grid 1 Voltage-1.3 V
Cathode Current10 mA
H-C Voltage100 V
Audio Performance
Key Features
- Variable mutual conductance
- Noval base
- Microphony-resistant design
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. or I.F. amplifier | 250 V | 2200 | 1440000 | 18 | 5 mA |
Application Notes
Valve can be used without special precautions against microphonic effect in circuits where input voltage Vi >= 25 mV for 50 mW output.
Datasheets
Datasheet: EBF80.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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