6CM8
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BrandSylvania
ClassTriode-Pentode
BaseE9-1, Small Button 9-Pin
Filament6.3V @ 450mA
Construction
Primary TypeHigh-mu triode and sharp cut-off pentode
EnvelopeT6 1/2
Sections2
Filament / Heater
Heater NotesControlled heater warm-up time
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2 W
Grid 2 Voltage300 V
H-C Voltage200 V
Audio Performance
Key Features
- Controlled heater warm-up time
- High-mu triode
- Sharp cut-off pentode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 250V | 2000 | 50000 | 100 | 1.8mA |
| Pentode Section | 200V | 6200 | 600000 | - | 9.5mA |
Application Notes
The pentode section may be used as an IF amplifier, video amplifier, AGC amplifier and reactance tube.
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