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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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EL 12 N vacuum tube outline illustration

Tube-number record

EL 12 N

0 archive entries

EL 12 N is a tube type in the TubeDatabase archive (class: Endpentode). Recorded specifications: brand VEB Röhrenwerk Mühlhausen, year 1956, construction Pentode, socket DIN 41509, maximum plate voltage 425 V, and maximum plate dissipation 18 W. The archive does not yet hold a photographed example of this type.

BrandVEB Röhrenwerk Mühlhausen
ClassEndpentode
BaseDIN 41509
Filament6.3 V @ 1.2 mA

Construction

Primary TypePentode
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage425 V
Plate Dissipation18 W

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Eintakt-A-Betrieb250 V150003000018.1872 mA
Gegentakt-AB-Betrieb (2 tubes)425 V———42 mA

Application Notes

Zur Vermeidung von UKW-Störschwingungen ist es notwendig, unmittelbar vor das Steuergitter einen Schutzwiderstand von mindestens 1000 Ohms oder vor das Schirmgitter einen Widerstand von mindestens 100 Ohms zu legen.

Filters

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Manufacturers

Brands

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    Grid 2 Voltage425 V
    Cathode Current90 mA
    H-C Voltage50 V

    Audio Performance

    Typical THD10%
    Power Output8 W
    Key Features
    • Endpentode
    • Gegentakt-AB-Betrieb
    • Eintakt-A-Betrieb