Tube-number record

6BA8

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BrandSylvania

ClassTriode Pentode

BaseNoval (B9A)

Filament6.3 V @ 600 mA

Construction

Primary TypeMulti-section

EnvelopeT-6 1/2

Base MaterialMiniature Button

Sections2

Warm-up Time11s

Heater NotesMaximum Heater-Cathode Voltage: 200V DC and Peak; 100V Heater Positive

Plate Voltage300 V

Plate Dissipation3.25 W

Grid 2 Voltage300 V

Grid 1 Voltage-50 V

Key Features

Mode	Plate V	Gm (µmhos)	Rp (Ω)	µ	Plate mA
Class A Triode Section	200 V	2700	6700	18	8 mA
Class A Pentode Section	200 V	9000	400000	—	13 mA

The triode may be used as a sync clipper or sync separator. The pentode section is designed primarily to serve as a video amplifier.

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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