Tube-number record

438

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BrandWestern Electric

ClassPentode

BaseMiniature 7-pin (B7G)

Filament10 V @ 0.075 mA

Construction

Primary TypePentode

SectionsSingle

Heater NotesIndirectly heated cathode

Plate Voltage180 V

Plate Dissipation2 W

Grid 2 Voltage180 V

Key Features

Mode	Plate V	Gm (µmhos)	Rp (Ω)	µ	Plate mA
Pentode	150 V	1250	500000	—	4.8 mA

Commonly used in carrier system applications and high-frequency amplifiers.

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