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Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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EL11 N / EL11 vacuum tube outline illustration

Tube-number record

EL11 N / EL11

0 archive entries

EL11 N / EL11 is a tube type in the TubeDatabase archive (class: Power output pentode). Recorded specifications: brand Philips Miniwatt, year 1939, construction Pentode, socket Side-contact (P-base), maximum plate voltage 250 V, and maximum plate dissipation 9 W. The archive does not yet hold a photographed example of this type.

BrandPhilips Miniwatt
ClassPower output pentode
BaseSide-contact (P-base)
Filament6.3 V @ 0.9 mA

Construction

Primary TypePentode
EnvelopeGlass/Metal
Sections1

Filament / Heater

Heater NotesIndirect heating, A.C., parallel supply

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Single tube output amplifier250 V9000500002336 mA

Application Notes

Electrically identical with tube EL 3. For data as push-pull output amplifier, refer to type EL 3.

Filters

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Manufacturers

Brands

    0 results
    Plate Dissipation9 W
    Grid 2 Voltage275 V
    Grid 1 Voltage-1.3 V
    Cathode Current55 mA
    H-C Voltage50 V

    Audio Performance

    Typical THD10%
    Power Output4.5 W
    Key Features
    • Indirectly heated
    • Parallel filament supply