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
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Unit - Class A1 Amplifier | 125 V | 8500 | 5400 | 46 | 13.5 mA |
| Pentode Unit - Class A1 Amplifier | 125 V | 6000 | 150000 | — | 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
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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