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BrandFerranti

ClassTriode

Base4-pin

Primary TypeTriode

EnvelopeGlass

Base MaterialBakelite

Sections1

MaterialThoriated Tungsten

Plate Voltage200 V

Plate Dissipation1.5 W

Grid 1 Voltage-10 V

Key Features

Mode	Plate V	Gm (µmhos)	Rp (Ω)	µ	Plate mA
Typical Operation	150V	1550	18000	28	3mA

Used primarily in early radio receiver amplification stages.

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