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EF 14

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BrandVEB FUNKWERK ERFURT
ClassSTEILE PENTODE
BaseDIN 41509
Filament6.3V @ 450mA

Construction

Primary TypePentode
EnvelopeGlass
Sections1

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage300 V
Plate Dissipation5 W
Grid 2 Voltage200 V
Grid 1 Voltage-1.3 V
Cathode Current30 mA
H-C Voltage100 V

Audio Performance

Key Features
  • Außenbelag mit bedingter Schirmwirkung
  • Steile Pentode

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Breitband-Verstärker250V-180000-12mA
Antennen-Verstärker (Triode connection)250V-45000-18mA

Application Notes

Diese Rohre darf nur mit automatischer Gittervorspannungserzeugung betrieben werden.

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