Tube-number record
EL71
0 archive entries
EL71 is a tube type in the TubeDatabase archive (class: Output Pentode). Recorded specifications: brand Mullard, construction Pentode, base Glass, socket B8D / B8F, maximum plate voltage 165 V, and maximum plate dissipation 4 W. The archive does not yet hold a photographed example of this type.
BrandMullard
ClassOutput Pentode
BaseB8D / B8F
Filament6.3 V @ 450 mA
Construction
Primary TypePentode
EnvelopeSubminiature Glass
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single-ended Class A | 110 V | — | 15000 | — | 30 mA |
Application Notes
Direct soldered connections to the leads must be at least 5mm from the seal. Any bending of the valve leads must be at least 1.5mm from the seal. Requires adequate cooling via metal clip or heat sink.
Datasheets
Datasheet: EL71.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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