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Tube-number record

6LM8

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BrandRCA
ClassMedium-Mu Triode — Semiremote-Cutoff Pentode
BaseNoval (B9A)
Filament6.3 V @ 0.45 mA

Construction

Primary TypeMulti-section
EnvelopeT6-1/2
Base MaterialGlass
Sections2

Filament / Heater

Heater NotesRCA Dark Heater

Absolute Maximum Ratings

Plate Voltage350 V
Plate Dissipation2.5 W
Grid 2 Voltage330 V
H-C Voltage200 V

Audio Performance

Key Features
  • Dark Heater
  • Internal Shield
  • Separate Cathode Connections
  • Semiremote-cutoff pentode

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode Unit - Class A1 Amplifier125 V850054004613.5 mA
Pentode Unit - Class A1 Amplifier125 V6000150000—12 mA

Application Notes

The pentode unit is particularly suited for use in the burst-amplifier circuit of color-TV receivers. The triode unit may be used as a general-purpose amplifier.

Datasheets

Datasheet: 6LM8.pdf

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

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