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AC/SP3/RH

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BrandEdiswan
ClassLow Noise H.F. Pentode
BaseBritish 7 Pin (B7)
Filament4V @ 1000mA

Construction

Primary TypePentode
EnvelopeMetallised
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated; parallel operation

Absolute Maximum Ratings

Plate Voltage250 V
Grid 2 Voltage250 V

Audio Performance

Key Features
  • Low noise
  • High slope
  • Low microphony
  • Metallised bulb

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
H.F. Amplifier250V7000550000-7.8mA
H.F. Amplifier250V7000550000-7.9mA
H.F. Amplifier250V7450400000-10.5mA
H.F. Amplifier250V7600340000-12.3mA
Resistance Capacity Coupled Amplifier250V----

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