Tube-number record
EF 41
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EF 41 is a tube type in the TubeDatabase archive (class: Variable-mu Pentode). Recorded specifications: brand PHILIPS, construction Pentode, socket Rimlock, maximum plate voltage 300 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.
BrandPHILIPS
ClassVariable-mu Pentode
BaseRimlock
Filament6.3 V @ 0.24 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect heating by A.C. or D.C.; parallel supply
Absolute Maximum Ratings
Plate Voltage300 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. and I.F. amplifier | 250 V | 2200 | 1000000 | 18 | 6 mA |
Application Notes
PENTODE with variable mutual conductance for use as R.F. and I.F. amplifier.
Datasheets
Datasheet: EF41.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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