Tube-number record
E80F
2 archive entries
BrandPhilips
ClassReliable Pentode
BaseNoval (B9A)
Filament6.3 V @ 300 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect heating by A.C. or D.C.; series or parallel supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1.3 W
Grid 2 Voltage200 V
Grid 1 Voltage100 V
Cathode Current9 mA
H-C Voltage120 V
Audio Performance
Typical THD1.4%
Key Features
- Special Quality (SQ)
- Reliable Pentode
- Shock and vibration proof
- Low noise and hum
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 250 V | 1850 | 1500000 | 25 | 3 mA |
| Electrometer Pentode | 40 V | — | — | — | 0.04 mA |
Application Notes
Designed for use in professional equipment where long life and high reliability are required. Can be used as a resistance coupled A.F. amplifier or electrometer pentode.
Datasheets
Datasheet: E80F.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
