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DAF 191

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BrandVEB Röhrenwerk Anna Seghers
ClassDiode and Pentode for AF Amplification
Base7-pin Miniature

Construction

Primary TypeDiode-Pentode
EnvelopeGlass
Sections2

Filament / Heater

MaterialDirectly Heated

Absolute Maximum Ratings

Plate Voltage90 V
Plate Dissipation0.15 W
Grid 2 Voltage90 V
Cathode Current2.5 mA

Audio Performance

Key Features
  • Battery-operated
  • Small size
  • Dual section (Diode/Pentode)

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Section67.5V70060000018.182.2mA

Application Notes

Designed for AF amplification in battery receivers.

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