Tube-number record
EF36
0 archive entries
EF36 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Mullard, construction Pentode, base Metal/Plastic, socket Octal, maximum plate voltage 300 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.
BrandMullard
ClassPentode
BaseOctal
Filament6.3 V @ 200 mA
Construction
Primary TypePentode
EnvelopeGlass/Metal
Base MaterialMetal/Plastic
SectionsSingle
Filament / Heater
Heater NotesSuitable for series or parallel operation a.c. or d.c.
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Characteristics | 250 V | 1800 | 2500000 | 28 | 3 mA |
| Resistance Coupled Pentode Vb=250V | 250 V | — | 100000 | 103 | 2.1 mA |
Application Notes
In order to reduce hum to a minimum, the centre tap of the transformer winding should be connected to the chassis. The impedance between cathode and chassis should be as small as possible (<40 Ohms).
Datasheets
Datasheet: EF36.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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