Tube-number record
EF11
0 archive entries
EF11 is a tube type in the TubeDatabase archive (class: PENTODE). Recorded specifications: brand PHILIPS, construction Pentode, base Metal, socket Side-contact (P-base), maximum plate voltage 300 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.
BrandPHILIPS
ClassPENTODE
BaseSide-contact (P-base)
Filament6.3 V @ 0.2 mA
Construction
Primary TypePentode
EnvelopeSteel
Base MaterialMetal
SectionsSingle
Filament / Heater
Heater NotesIndirect; parallel or series supply
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. or I.F. amplifier | 100 V | 1300 | 400000 | — | 2.5 mA |
| R.F. or I.F. amplifier | 200 V | 2200 | 2000000 | — | 5.7 mA |
| R.F. or I.F. amplifier | 250 V | 2200 | 2000000 | — | 6 mA |
Application Notes
Pentode with variable mutual conductance for use as R.F., I.F. or A.F. amplifier.
Datasheets
Datasheet: EF11.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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