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ECF 1

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BrandPhilips
ClassTriode-Pentode
BaseSide-contact
Filament6.3V @ 200mA

Construction

Primary TypeTriode-Pentode
EnvelopeGlass
Sections2

Filament / Heater

Heater NotesIndirect heating by A.C. or D.C.; parallel or series supply

Absolute Maximum Ratings

Plate Voltage300 V
Plate Dissipation2 W
Grid 2 Voltage300 V
Grid 1 Voltage-1.3 V
H-C Voltage100 V

Audio Performance

Key Features
  • Combined I.F. and L.F. amplifier
  • Indirectly heated
  • Parallel or series supply

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode section as H.F. or I.F. amplifier250V20001600000-5mA
Triode section150V22009000208mA

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